To Seal or not to Seal?

 

 

 

By Janna Epstein 


 

          Granite is a natural creation. One piece of rock is not like any other in the world. This is the one quality that actually makes this stuff so beautiful and in demand. The individuality of each granite slab is what lures so many homeowners into deciding on a granite countertop. This also means that no two granite slabs have the same absorbent qualities.If all stone came from one quarry, it would be similar, but still unique. For example, Black Galaxy from Brazil may not absorb anything, whereas similar black granite from Asia may be a sponge.It does not matter where the stone is located in your design, it can be a vanity top, kitchen countertop, fireplace surround, island top, or floor tile.

             If its natural stone, then there is a chance it might need sealing. What does that tell us? Not all granite or marble will take a sealer. If a stone cannot absorb anything, even an impregnating sealer won’t sink in. Impregnating sealers sit below the surface of stone and deposit solid particles into the pores to coat the individual minerals below. The good news here is that if a sealer won’t penetrate into the stone, neither will a stain. An example is Ubatuba granite: it’s very bulletproof and  usually does not require any sealing. Sealer generally does not penetrate this stone and is useless, leaving a hazy film on the surface.  This may come as a surprise to many in the countertop industry. If you go to any home show and ask counter- top salesmen that sell  anything other than natural stone what makes their product better than stone and you will always get the same answer. They will all  say that stone needs to be sealed every six months to once a year but their countertop surface doesn’t require this “inconvenience”.
 

            The need for sealing every granite, and sealing it often, is a myth and absolutely untrue. These kinds of tales are born from fears and insecurities, or specifically designed to prey on such concerns of homeowners. Everyone loves stone, but there is a certain mystique attached to it that scares the people who know little about it. These scare tactics make granite owners afraid to do anything with their granite stone because if it’s ruined, it’s too expensive to replace. The competition tries to pull away potential customers from getting a stone top by over exaggerating the need for sealing granite and marble countertops. If this is the only perceived weakness of granite countertops for potential buyers, it’s easy to spread the scare that "all granite needs to be sealed.” It makes sense to them and is a compelling reason for you to buy the competitor’s product instead of granite and other natural stone. In reality, a small percentage of the commercially available polished stone used for countertops needs a sealer. A low percentage really needs to be sealed because granite is the main stone variety in use, and not all granites are fully absorbent. You can see this on something as simple as a granite boulder in a park or field; after it rains, it doesn’t stay wet. It dries instantly.

 


 

suepriorcleaner

 

 


 

           You can use a solvent test to see if a solvent- or petroleum-based stain will enter the granite. Simply dab some mineral oil on the slab and leave for 5-l0 minutes. If, after you remove it, it doesn’t darken the stone, neither will a staining agent. If it does go dark, no worries about damaging the granite with the test; the mineral oil will completely evaporate, leaving the stone its natural color. But, this will tell you that you can use a solvent-based sealer to protect against oil—based stains. In short, if the granite goes dark with either water or mineral oil, then seal. lf there is no color change alter testing with these two liquids, you do not really need a sealer on your granite countertop. This test works for granite and almost all other stones, although there’s a caveat here for marble; an impregnating sealer will not protect marble against those nasty water rings and spots. They aren’t stains, no matter how bad a customer wants them to be stains; they’re etches or corrosion. lt’s a chemical reaction between the calcium in the granite or marble and the acid in the product that caused the etch. Think of your favorite shirt in the laundry. When you spill water or oil on it, it goes dark. If it stays dark, it’s a stain. If it loses its color, it is bleached out or white, as the dye or color from the thread is gone. On marble, the surface of the stone is corroded, leaving the stone in its real natural state or its unfinished look. No amount of sealer will bring the color back, it needs to be resurfaced. It’s also important to emphasize that this applies to commercially available polished stone.

           When stone is polished, the pores are tighter and restrict the ability of liquids to enter. With honed surfaces, liquids can enter some of the less absorbent stone more freely and therefore require an impregnating sealer. One of the usual questions to pop up is, once you determine if` you’re going to seal granite, how often to do it? This answer is the easiest: When your countertop no longer repels water or oil. The field test is that, after washing the dishes, a customer starts to notice the stone is darker with moisture and then getting lighter a short time afterwards, it’s time to re-apply (not coat) with the brand of sealer used originally. Reputable fabricators like All Granite and Marble Crop value their customers and will seal marble and granite that need sealing when installation is complete. They also show the homeowner how to properly seal natural stone so no mistakes are made in the future. Any sealer worth its weight in gold should last you at least one year, even with the most-porous of all marble and granite. As far as lifting the mystery of sealing stone: Seal when needed, and try to use products that don’t require frequent repeat applications. In this case, more is not always better.

 



COMMENTS (280)



Jane 2010-12-20 03:12:02

Is "Green Galaxy" granite from Brazil a porous granite or not?

admin 2010-12-20 14:36:40

Jane: It's not more porous than the average granite. I recommend to seal this stone once a year to keep it stain resistant.

Marue 2011-02-13 18:09:22

Is "blue eyes" a better choice (more resistant to stains) than "volga blue? And is granite that is white in color very porous?

admin 2011-02-14 13:45:33

Marque: Natural stone is porous by nature and must be sealed once a year. The Blue Eyes and Volga Blue granite have a similar porosity level. Lighter granite is sometimes more prone to staining, but it's nothing that a strong sealer cant' take care of.

William 2011-03-17 12:19:29

I have been told that after they put my new granite countertop in they can't put sink in for 24 hours.Is this a noral practice?

admin 2011-03-17 15:15:43

William: The sink is installed with the countertop. It's recommended that you don't use the sink for 24 hours so it will set-in.

LT 2011-04-04 17:16:26

Can chemical substances like clorox,insect killer spray or fuels damage a granite top? can I use floor wax to seal the granite counter top

admin 2011-04-05 12:26:05

LT: These substances may damage the granite countertop. Please do not use any harsh chemicals on natural stone. In addition, floor wax should not be used to seal granite, a specifically formulated granite sealer either in a water or solvent based form is recommended.

Roberta 2011-04-19 14:37:22

I just had my granite installed Thursday (Kashmir White) and have an oil stain. How do I remove it?

admin 2011-04-19 18:48:04

Roberta: I recommend an appropriate oil stain remover to do the job correctly. Try this: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-oil-stain-remover.html

Juli12316 2011-06-07 06:36:00

http://www.xmjuli.com Granite Kitchen Counter Top and Granite Bathroom Vanity Top

Debbie 2011-07-17 19:44:00

Is Brown Antique a very porous granite? Will much have to be wasted or "cut around" when they fabricate it because of the way it has "crystals" instead of veins? Thanks

Marble.com - Kinga 2011-07-18 14:25:00

Natural stone is porous but with proper maintenance and sealing, you will not have a problem with its porosity. As far as waste is concerned, you have to talk to your fabricator for him to determine the amount of waste your project will produce. It depends on the shape, size, custom cuts, cutouts involved and so on.

LOAMA 2011-07-19 15:36:00

We had installed a light grayish granite top. It has been sealed many times with 5-11 and still leaves a dark spot when something is left on top of water on the counter. What can be done to seal the counter?

Marble.com - Derek 2011-07-20 12:36:00

As Kinga mentioned, it depends on the fabricator and what is their policy on cutting the stone. With us, we let the customer pick how the countertop will be cut on the slab, and our technicians inspect the stone before it is fabricated to make sure of the integrity of the stone.

Marble.com - Derek 2011-07-20 13:52:00

That's very odd. If water darkens your stone then it means that it was not sealed properly. Keep sealing. We recommend Superior Zero Ultimate Stone Protector: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle

Littlealex820 2011-07-25 17:34:00

Do you recommend a particular sealer for honed carrera marble countertops?

Marble.com - Kinga 2011-07-25 20:43:00

Check out MrStone.com and try out the Dupont StoneTech Bulletproof Sealer. http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Marble.com - Derek 2011-07-27 12:22:00

I recommend a heavy duty natural stone impregnator such Dupont StoneTech BulletProof Sealer. We have numerous options of strong sealers on www.MrStone.com you can purchase directly on-line.

Rivalee 2011-07-30 16:12:00

I just installed "Taupe White" granite like this http://www.thegraniteplace.net/encapsgallery/catalog.php?action=show_custom&id=417&cat=0 and would like to find out more about it. Is there a site that tells more about the porosity of different stones, resistance to etching, etc? What might you know about this particular stone? Thanks!

Marble.com - Derek 2011-08-01 21:10:00

We unfortunately do not have the technical specifications on the stone that you're referring to.

Mboyeson 2011-09-12 12:11:00

We just installed a "rain forest" marble island countertop. Our fabicator recommended against sealing this marble. If a drop of water is left on the countertop for one minute, it still has its bubble shape. However, when it is wiped off after a minute a dark stain remains that eventually dries up. This would seem to require a sealer to prevent liquid stains. That being said, if tomato juice gets on the countertop, then a chemical stain/etching will occur whether or not you have used an impregnator or water based sealer, correct?

Marble.com - Derek 2011-09-13 20:39:00

Etch marks are caused by acids left on the surface of the stone. Some materials will etch the finish but not leave a stain. Others will both etch and stain. A stain can be caused by many liquids or oils that soak into the stone because of the stones low porosity levels. You can and should seal your marble and this will prevent staining, but it will not prevent etching. To minimize etching, wipe up all spills as soon as possible. Hope this helps.

Jayksmom 2011-10-20 13:22:00

We are about to have our countertops installed in Ivory Fantasy. Our installer told us that they would be sealed initially, but recommended re-sealing after a few days and then again in about 6 months...just to be sure. He recommended Miracle 511, but without an impregnator so that the granite is not darkened. Does such a thing exist? The only thing I find is an "Enhancer" Is this not the same thing? We prefer the lighter color than the dark grey it turns to when wet. With so much (mis)information/horror stories out there, something that started off as exciting is quickly becoming very frustrating! We are just trying to start off on the right foot in order to protect our investment before we create any problems. Thanks so much!

Marble.com - Derek 2011-10-20 16:25:00

We offer a product without the impregnator that should not darken your stone when sealed, you can purchase it here: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html I think you will be fine to just seal the stone upon installation then once every six to twelve months. In addition, I recommend to test out the sealer on an inconspicuous small area of the counter first and see how you like the results. Good luck!

Marble.com - Kinga 2011-10-20 18:17:00

Although, Derek is 100% right about re-sealing it every 6-12 months, I recommend you reseal your countertop after the installation just in case your installers accidentally missed a spot. If you feel more comfortable, resealing it every 3 months is also ideal. Sealing protects the stone against staining so it’s important to periodically reapply it. Mrstone.com has many fantastic maintenance products including the AGM Daily Cleaner. The AGM Daily Cleaner contains a small amount of sealer so every time you clean your countertop, you apply a small amount of sealer which helps to keep your stone clean and sealed in-between your regular sealing. Hope this helps! KEEP YOUR STONE BEAUTIFUL WITH MRSTONE.COM http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html

Jayksmom 2011-10-20 20:09:00

Thanks to both of you for the quick reply....we will definitely be following your guidance!

Marble.com - Kinga 2011-10-20 21:56:00

Like Derek mentioned, always test any product you purchase in an inconspicuous area to ensure you are satisfied with the results. If you need anything else, do not hesitate to ask! Good luck!

Juli12316 2011-10-24 13:09:00

kitchen granite countertops_bathroom granite vanity tops_quartz countertops here you go :http://www.xmjuli.com

Pat 2011-10-24 17:51:00

I just had new granite countertops installed on Thursday. Waited the 24 hrs. to install faucets. Used the sink last night and where the cut out is for the sink the granite turns dark but will lighten when it dries. I asume that this needs to be sealed? Also where the bullnose edge is the granite seems about 4-5 shades lighter than the top. Is this normal? Sorry I do have one more question.... I have absolute black granite on the bathroom floor. Some say this should be sealed others say not to seal it. Its been down about 2 yrs. now. While I was sealing the kitchen counter thought I would also do the floor if needed. Thanks, Pat P.S. It was a pleasure working with such great people in your company, and the countertop looks great !

Marble.com - Kinga 2011-10-25 16:04:00

Even though we do seal every stone we install, it is highly recommended to re-seal the stone again before you begin to use it. When the granite turns dark and dries up, you definitely need to re-seal it http://www.mrstone.com/granite-sealers/superior-zero-line-impregnating-sealer.html. Keep in mind some stones absorb liquids quicker than others which indicates you should seal more often (every 3-6 Months). It is perfectly normal for the edge be to lighter than the surface. Take a look at a photos I attached for your reference. Thank you for your kind words. We are always happy to hear from satisfied customers! As far as your floor, you should seal it even though it’s dark. The Superior Zero Line sealer is water based so it will not change the look of your tile. Always remember to test every product in an inconspicuous area before you apply it to the entire floor or countertop to ensure you are satisfied with the result. Hope this helps!

Marble.com - Derek 2011-10-27 14:50:00

There are multiple sealers that we highly recommend to keep your stone looking evenly finished and stain resistant, you can look at the whole selection here: http://www.mrstone.com/granite-sealers.html and you can read some more literature on sealing natural stone here: http://www.marble.com/articles/sealing-in-the-beauty-of-natural-stone/ Hope this helps & thank you for your kind words.

Chaz 2012-01-17 17:36:00

So the article states: "Any sealer worth its weight in gold should last you at least 5 years, even with the most-porous of all marble and granite." And then you marble dotcom guys comment multiple times that people's countertops need sealing every 6-12 and even 3-6 months. Which is it?! Am I the only one that read the article?

Marble.com - Derek 2012-01-17 18:11:00

Chaz, Sealer application is a tricky situation. Stones have various levels of porosity, for example a dark stone such as Absolute Black requires minimum sealing and would possibly be fine for five years, while a light stone such as Kashmir White requires more often sealing every six to twelve months. We recommend sealing every six to twelve months because of the golden rule: better safe than sorry. Because sealing is such an easy do-it-yourself application and there is no such issue as "over-sealing" a stone (the excess sealer can simply be wiped off the countertop), we recommend more frequent sealing to make sure your stone stays stain resistant as we want the customer to have peace of mind and not worry about stains. The reason why a five year sealing recommendation was in this article for so long is because when compiling the article we leaned on sealer manufacturers suggestions. Many sealer companies are so confident in their product and strength of the sealer, that they recommend long periods before they feel resealing is appropriate. After review of this article, we do not agree with that stance and therefore will adjust the contents of this article in the areas of reseal time to fall in line with our normal recommendations. Hope this clears up the issue and we're sorry for any confusion.

Rideas 2012-01-31 19:11:00

We did a bathroom remodel, and we selected a honed Carrara marble for the floor. It looks beautiful. What do you recommend we use to best seal and protect it's beauty?

David 2012-02-01 14:48:00

I am currently looking into purchasing Clasic White or a similar dominant white kitchen counter top. Obviously my biggest fear is staining. Lets say for example a bit of red wine is spilled and sits over night, would this be an issue if the top is sealed to reccomendation? Is disscoloration from such things a common problem? Finally, can proper sealing 100% prevent staining from common kitchen liquids, oils, juices?

Marble.com - Kinga 2012-02-01 18:18:00

You can use Dupont StoneTech BulletProof Sealer from MrStone.com. Like with any natural stone, you always want to test the product in an inconspicuous area to make sure you like the results. Good luck! http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Marble.com - Derek 2012-02-04 15:57:00

In addition, on the MrStone.com website, the Superior Line Stone Impregnator & Protector is also a very solid and heavy duty sealer from my personal experience, so either one would be great to lower the porosity level on the surface of your Carrara floor.

Marble.com - Derek 2012-02-04 18:39:00

My best answer would be for you to acquire a sample yourself, seal the sample, then try to stain it by leaving that red wine spill on it and analyzing the results. I want you to have peace of mind and make sure you purchase a stone that you're comfortable and happy with. What I can say is that we install many Classic White kitchens and have not had any major issues. We recommend to reseal every six months to be on the safe side. Hope this helps.

1miletoo 2012-02-06 21:20:00

I am not concerned about stains on my granite counter top. Do I still have to apply sealant? If one doesn't apply sealant, does it affect the longevity of the granite? Or do we seal ONLY for aesthetic reasons?

Marble.com - Kinga 2012-02-10 15:43:00

Sealing prevents staining of the countertop. The best way to prolong the life of your granite is to use gentle cleaning solutions like mild soap and water or the AGM Daily Granite and Marble Cleaner http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html

Marble.com - Kinga 2012-02-10 15:43:00

Sealing prevents staining of the countertop. The best way to prolong the life of your granite is to use gentle cleaning solutions like mild soap and water or the AGM Daily Granite and Marble Cleaner http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html

Marble.com - Derek 2012-02-10 20:59:00

You have to ask yourself the reason why are you reluctant to apply sealer. If you fear that it's a high amount of maintenance, then we can tell you this is false because sealing a countertop will only take maybe 15 minutes and it's a very easy do-it-yourself process. If it's because you do not care about the look of the countertops because it will be in a heavy work area or in the basement or something like that, then I recommend to use a darker that is low porosity, such as Absolute Black or Ubatuba. You can get away with not sealing stones such as those, because they do not really absorb stains as lighter granite's do. Hope this helps.

Linda 2012-02-16 21:36:00

We recently purchased a home with counters which I believe are granite, not marble. They are highly polished. You state in your article that the counters should have "the brand of sealer used originally" reapplied. I have no idea what was used. Does it really matter, or will I make matters worse using the wrong product? Also, the counters have what I would describe as "etching" in circular patterns such as a pot would make. Does this happen to granite too (your article mentions this etching problem as a marble issue), or am I wrong about the material?

Marble.com - Derek 2012-02-18 19:18:00

It does not really matter that much if you use a different sealer than originally applied to reseal your countertop. You will be fine with using another strong, efficient sealer. Your granite should not generally etch because granite is a siliceous natural stone and not highly reactive to acids like a marble or limestone. However, the sealer may etch on the surface so this is possibly what could be happening. In addition, there is a natural stone called quartzite out there and it's sometimes categorized as granite because it's generally as durable as granite, but it may etch. Hope this helps!

Bob 2012-02-21 01:16:00

We are installing a small piece of calcutta gold honed marble on a built in bar/buffet cabinet. I want to seal it but do not have anyplace to test the sealer to see if changes the color of the marble. What would you recommend?

Marble.com - Derek 2012-02-24 21:06:00

Many places let customers acquire samples and you could use one of those for your testing. For example, we offer free samples for pick-up of virtually any stone we have and you do not have to place a commitment to order.

Jamie 2012-02-25 05:38:00

I have granite tile in my kitchen that is 7 yrs old. From day one i noticed the water marks and if anything with grease or oil in it was set on it, it would sink in and darken. Ive tried 3 difference sealers including an impregnato. This is a beige with specks of blk and darker beiges. I also spilled grape juice which was cleaned immeditaly, but left a huge dark spot. I feel like i cant use my kitchen at all in fear of stains! Please help!

Dave 2012-02-26 16:37:00

Our kitchen is done in Caladoinia granite. we have noticed that the area that is most used is darker than the places that are not cleaned eveyday i.e. under the canisters, toaster and what not. it has been like this since the first year. We have only used water and dish soap to clean it. is there a way to get it back to a consistant color? to be honest we kind of like the darker color. but we are thinking that perhaps we need to seal it again as well. any suggestions would be welcome

Marble.com - Derek 2012-02-28 15:46:00

If you sealed the stone and it's staining so horribly, that's very odd. Could you share what sealers have you tried? The strongest sealer that we know of and recommend is the Superior line "ZERO" Ultimate Stone Protector: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle

Marble.com - Derek 2012-02-29 20:34:00

It seems to me like it's time for the countertop to be sealed again to stay stain resistant. As far as cleaning maintenance goes, the best product we recommend that you use is the following: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html

Awei 2012-04-06 06:38:00

My kitchen has black galaxy granite and i just used 511 impregnator sealer to seal it. Now there is a terrible haze on it that won't go away. I read that black galaxy didn't need to be sealed. What do i do now/!?

Marble.com - Derek 2012-04-06 15:22:00

Absolute Black is a stone that has a very low porosity and seldom needs to be sealed. The sealer may just lie on the surface of the stone and cause visible streaks and haze, which is what I think happened in your situation. The haze is the sealer that was allowed to dry. You usually can remove it by applying the sealer again and wiping it all off (yes, lots of wasted sealer). If that does not work, then you could try buff it off w/ a piece of 0000 or 000 steel wool. The third option is cleaning it with acetone and allowing it to dry, but there is a chance this could damage the stone.

Robert 2012-04-24 19:27:00

I had Kashmir White granite installed yesterday in my kitchen. We had hand picked a slab that had very little of the black vein in it, however once it was installed and sealed it appears to have a ton of black vein. The company is saying they used the slab we hand picked, however my wife and I are not convinced and based a lot of other things on having very little black in the granite. Now we're unhappy with it and the company is refusing to help! Is there a way to lighten up te black in the granite? Or is that just "part of the natural beauty," like the company keeps saying? Should we just be happy or prepare to go to battle?

Rue 2012-04-30 20:17:00

I just had granite installed on my kitchen countertops. I was told by the project manager that the sealant was put on my granite before installation at the shop but when I look at my countertops I see water marks like it was left out in the rain. What should I do?

Marble.com - Kinga 2012-05-01 16:38:00

You have to keep in mind that slabs sometimes look different standing up vs. cut and installed (laying down). The colors and veins may look different in your house from what you remember at the time of the actual selection at the facility. There are many factors to consider: were you outside for the selection? If so, was it cloudy, rainy or sunny? Outdoor selection is sometimes tricky as lighting makes a big difference in the final result! If your selection was indoors, the lighting may have been poor or too intense as opposed to your own lighting which also makes a difference in the end result. There is no way to lighten up the black veins- it’s a natural, beautiful part of granite. I don’t see a reason why your fabricator would deceive you. Generally, if something happens during fabrication like the stone breaking for any reason, fabricators tend to inform their customers of any mishaps so they can select another piece to avoid dissatisfaction with the stone and end result. I do agree that the black veins are a part of the natural beauty of your stone so you should embrace and enjoy your granite. Hope this helps!

Marble.com - Kinga 2012-05-01 16:43:00

Sealing helps prevent stains from forming on your countertop. Once it’s cleaned and sealed, most common spills are no match against your sealer as long as you re-seal it once every six to twelve months and always wipe spills as they occur. What did you use to clean your countertop after it was installed?

Marble.com - Derek 2012-05-01 17:19:00

In addition to Kinga's detailed answer, the slab should be marked as yours and the one you picked should be the one you received. It's hard for us to say if anything deceitful happened here because we do not have pictures to look at for comparison. We really cannot comment on order processes of other companies, but we always give our customers a sample from the same shipment of slabs they chose their countertops so the client has a point of reference at all times.

Marble.com - Derek 2012-05-08 16:43:00

Was the countertop installed by us?

June 2012-05-19 04:10:00

I just had a granite vanity top put in my bathroom, but there seems to be some rough places on the counter, like it never got polished in some spots, also can see water spots on the vanity top, what can I do to make it look better? They told me it was already sealed but it looks like it absorbs water around the faucets. Thank You

Marble.com - Kinga 2012-05-19 11:37:00

If you are noticing water marks on your vanity it may mean you have hard water. You can purchase a hard water test to see how severe, if at all, you problem is. Your fabricator most likely did seal it but your stone may simply require another coat. You can seal the countertop yourself as it’s a very simple and quick process- all you do is apply the sealer, wait for it to penetrate the stone and wipe off the excess! I would recommend using MrStone.com DuPont BulletProof Sealer http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html This sealer is great in and around spaces where you constantly use the sink. Hope this helps!

Dixie Ramberg 2012-05-21 15:20:00

We have black galaxy granite and glass bottles and glasses leave a non-removable ring. I read where Black Galaxy should never be sealed so we did not seal ours The rings are not etched ones just a flat ring. Should we have sealed our granite?

Marble.com - Kinga 2012-05-21 15:35:00

Sealing only protects your stone against stains. The ring you are describing is most likely a chemical reaction caused by acids, hard water or chemicals. Someone once told me her cousin, who regrettably did not purchase her stone from us, had rings left from orange juice! I would recommend using coasters under drinks, refrain from using chemicals to clean it and substitute it with MrStone.com AGM Daily Granite and Marble Cleaner http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html and most importantly, wipe spills as they occur to help minimize and prevent this from occurring again. Hope this helps!

Memalone7 2012-05-29 22:21:00

We just moved into our home a few weeks ago. We have Kashmir White countertops in the kitchen and two bathrooms. They were not installed by your company. Nothing at all was told to us about care and we naively thought granite was carefree. We thought it was odd when water took awhile to disappear. Now, there is very dark water staining around the kitchen faucet that is not disappearing and two spots where I spilled a bit of oil and didn't notice until the next day. Obviously, it was never sealed or not sealed well. After reading your information, of course I will seal all the countertops. But, do I need to try to remove the stains first? Will the water marks ever completely disappear if I just wait it out?

Marble.com - Derek 2012-05-30 15:58:00

The water should simply dry up and the dark water marks should disappear, however if that is not happening then it's a problem. There are home made do-it-yourself methods you can try to get rid of these water stains before you seal the countertop. I recommend to apply a poultice to try and remove the water stains. Directions are here: http://www.ehow.com/how_6225896_remove-water-stains-granite-countertops.html For sealing of the countertops, I recommend to purchase the following product: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector Good luck!

2012-06-01 16:22:00

I am very confused and just found this site so hope you can help me. I have Ubatuba counters and full backsplash that meet the cabinets. My kitchen was done approximately 5 years ago. When it was installed it was sealed by the installer and we woke the next day to find a dull haze all over. I called the company that installed it and they said to reseal it and it would go away. Instead of doing that because we did not know what we were doing my husband spent hours wiping with a soft cloth until the haze finally went away. We were told that it needed to be sealed about once a year. To this date we have not as we just did not want what happened originally. The counters look beautiful. The only problem we seem to have is around the sink area where the edge of the counter meets the backsplash. We get a fine line of what appears to be a white powder (lack of a better description) which when we clean goes away and then returns after a few days. We have been told we have very hard water. My confusion comes from reading above where you said Ubatuba rarely needs sealing and I have read that elsewhere as well. Yet we were told by the installers that it does. Are we harming our counters by not doing the sealing and do you have any remedy for the while powder line that forms that I mentioned above. The white line only happens in the area where water may hit it. Thanks in advance for any help.

Marble.com - Kinga 2012-06-01 17:35:00

The Ubatuba is an elegant, dense stone that sometimes doesn’t require sealing. Sealing only prevents the stone from absorbing stains as opposed to shining it up or fixing the surface. The whiteish powder that you are talking about seems like residue from hard water or chemical residue commonly found in dish soap and some cleaners. You are not damaging your granite by not sealing it, you are; however, exposing it to stains. I would recommend using a water based sealer like this one http://www.mrstone.com/granite-sealers/superior-zero-line-impregnating-sealer.html once a year just to ensure it doesn’t absorb liquids or stains. Use this cleaner to keep it clean and beautiful http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html and you shouldn’t have problems. Hope this helps!

2012-06-01 19:24:00

Wow, thanks so much for the quick response. I will do what you suggest although I do not have any stains which is a good thing. I am very happy with it and it looks as beautiful as it did when I first had it installed. I meant to mention that I have white kitchen cabinets and a light maple hardwood floor. I have dark furniture with taupe walls and stainless appliances. The ubatuba is beautiful against the white cabinet and light floors. The backsplash which meets the cabinets is stunning and an easy decision for me anyway about what to do for a backsplash. When I apply the sealer do I have to do the backsplash as it never gets wet except at the sink. Since I have never used a sealer what happens if you get it on your faucet and other fixtures at the sink. I am nervous about the spraying of the backsplash. Not sure how to add a photo so you could see what I mean. There are certain areas that would be tight and I am afraid to harm them. Besides the sink area a small strip behind the stove which then goes up to my breakfast bar. Plugs and things like that are included in the backsplash. Is the water based sealer different than what the installer must have used. I am so nervous about that haze that I originally got and the amount of time it took my husband to remove it. While the backsplash looks beautiful it is making it harder for me to think of spraying the area. Unless I tape everything to protect it. I am wondering if that is what you would suggest. Again, thanks so much for your help and sorry for being a pest.

Bart 2012-06-02 00:15:00

Hi, I am shopping for granite counter tops. This is a fantastic web site, by far the best I have come across. Is Golden Shadow very porous? Is it considered exotic (expensive)? We will have light maple cabinets and don't want very dark counter top, are there other similar to Golden Shadow? Thanks, Bart

Marble.com - Kinga 2012-06-02 14:44:00

The haze is common when a stone does not accept the sealer used to seal it. It simply dried on the surface, instead of penetrating it, leaving behind dried residue. Since your granite did not accept the sealer, it most likely will not accept a stain. As your stone is dark, even if you do stain it, it is unlikely you will notice it. When using a sealer or any type of granite cleaner, it is always a good idea to avoid any fixtures; however, even if you get some onto your faucet, just wipe it off- it shouldn’t damage it. You can also use the same sealer to seal your tiles as well as this grout sealer http://www.mrstone.com/stone-care-products/sealers/dupont-stonetech-heavy-duty-grout-sealer.html to keep your backsplash clean and beautiful. By the way, your design sounds absolutely lovely! And you are not a pest- our passion is to help people! You presented very important issues and asked very valid questions many people have which will help them keep their granites as beautiful as yours!

Marble.com - Derek 2012-06-05 15:01:00

The Golden Show is not specially porous. You will need to reseal at least once a year to keep the product stain resistant. I think this granite would look beautiful against light maple cabinetry. Some other options you can consider are Colonial Gold and Lapidus. Good luck!

Sam 2012-06-11 01:48:00

Golden Fusion: Hi, We are planning to buy Golden Fusion granite. We do a lot of cooking with oil, spices such as turmeric, etc and we are concerned if this is a porous granite that we should probably avoid. How often does this granite need to be sealed? Also, for this granite will the 15-year sealants really work when we are using lots of oil, spices etc? Thanks, Sam

Marble.com - Derek 2012-06-15 13:12:00

Hi Sam. I would still seal the stone once a year to be on the safe side and not fully take the word of the 15 year seal guarantee. It's very easy to seal a stone and it can take just five-teen minutes. This will keep the granite surely stain resistant and give you peace of mind. However, as always, you should wipe up any spills as soon as possible and not leave them to dry up overnight. Good luck!

Claud 2012-06-15 17:10:00

I have marbled dark brown granite countertops in my bathroom. (Not the best choice). My kids leave water from washing their hands, brushing their teeth etc. The granite now has what appears to be water marks. Not the type that darken and then evaporate but rather stay there and make the granite lighten. There is also an overall dullness to the stone. How do I fix this? How can I make it look more vibrant/plished. I have applied sealer and it doesn"t seem to help.

Marble.com - Derek 2012-06-20 15:33:00

Hello Claud. You can try the DuPont StoneTech Polish from our affiliate www.MRSTONE.com to try and get the richness you're trying to achieve. You can find do-it-yourself home-made directions on-line on how to get rid of water marks. However, do you have granite or marble on the countertop? I'm confused on that part.

Natashallowe 2012-06-26 02:11:00

My husband and I live in Barbados and we are currently in the process of purchasing some Pokarna green granite countertops in our home, can you direct me as to the characteristics of this granite. Does it absorb liquids etc?

Jennohara 2012-06-27 15:13:00

We have polished white quartizite from marble.com for our kitchen countertop. We have been doing research on best sealers and it seems the sealers with best reviews are Miracle 511 porous plus and Dupont stonetech bulletproof. Which do you recommend for the whitest quartzite? I want the strongest protection against stains, water rings, scratches, and chipping. Also for what cleaner/polish would you recommend?

Marble.com - Derek 2012-07-02 14:14:00

Hello. We do not carry Pokarna Green. We have a stone called Amazon Star and it's *alternative* name is Pokarna Red. You can view it's technical specifications by clicking on the stone's "Technical Information" tab in the Material Information box: http://www.marble.com/materials/granite/Amazon-Star#16 Perhaps the characteristics would be similar.

Laliotes 2012-07-02 19:18:00

Just had installed Vyara Juparana granite (and love it). However the granite dealer confirmed it had only a polish on it from factory in India not a sealer.. The fabricator (not you) said it came with "clear coat" and did not need sealing. I questioned this, and now reading your great columns and FAQ's, I would like assistance in whether I seal, what I seal is best to use and how often based on my type of granite. I have not done the water or lemon test yet. I have not used any type of rock cleaner or polish as the instructions on most products say "must be sealed first". Thanks for your help! Ann

Marble.com - Derek 2012-07-05 15:01:00

I recommend Dupont StoneTech Bulletproof for sealing and AGM Daily Cleaner for cleaning. You can purchase both of these products from our affiliate www.MRSTONE.com

Marble.com - Derek 2012-07-11 13:22:00

Hello. If the stone was not sealed by the quarry / factor in India (they usually are) then you need to seal the stone at home as soon as possible. Some stones are denser and have a low porosity level therefore require minimal sealing, but it's better to be safe than sorry. I recommend to use DuPont Bulletproof Sealer and you can purchase it from our affiliate: www.MRSTONE.com Hope this helps!

ljraveney 2012-07-12 21:04:00

Hi, our new home has granite vanity top in the upstairs bath, and wouldn't you know, my crafty daughter used some epoxy (modge podge) and let some of it dry on the stone. Needless to say I am horrified. There are a few cleaners that will remove epoxy, but I am terrified of what they might do to the countertop. Would they damage the stone, or just make it need resealing? Do you have any recommendations or products for removing this?

Patti 2012-07-14 11:32:00

Thank you for the helpful article. I too was told that I must seal every year. I have violetta granite which must be similar to ubatuba because in the 10+ years I never sealed it and it was fine. When I was told it must be sealed annually, it scared me and I sealed it with a Dupont Stonetech professional heavy duty water based sealer. I am very disappointed because I see streaks /haze now and have been trying to polish with a hand polisher but still see them. Can you pls advise if this hurt the granite and should I just keep trying to hand polish to get the streaks/haze out. Thank you.

Cweissenbock 2012-07-16 19:57:00

We bought a house 1 year ago. The kitchen has "black acid wash granite" counter tops (I don't know what kind) I am doing research about sealers and read that black granite usually does not need to be sealed. Also, I would like to know how to take care of the "acid wash granite". Thanks!

Marble.com - Natalia 2012-07-18 13:25:00

Unfortunately I have some bad news. This is not a do-it-yourself fix for a homeowner. I recommend to contact a Granite Restoration Specialist in your area (you can search locally online) to have the epoxy removed without damaging the stone. Good luck.

Marble.com - Natalia 2012-07-18 13:37:00

Unfortunately Patti, from your description I am forced to draw the conclusion that the countertop was not sealed correctly, in the proper manner. The streaking / hazing should not occur and is a result of oversealing / leaving the sealer that did not absorb on the surface of the granite. After you seal the stone, especially in a dense stone such as the one you're describing, not all of the sealer will absorb into the countertop. After about twenty minutes you should wipe off the excess sealer to avoid the streaking problem. This did not "hurt" the granite in any way, it just may be aesthetically unpleasant to the eye at certain angles when you're looking at it. You can try using a cloth with a little bit of rubbing alcohol on it to eat away the excess sealer, but there is always the possibility that it might damage your counter in the process. I would test this suggestion out on an inconspicuous area first. You can also try searching for a Granite Restoration Specialist locally in your area and see if that would be helpful. Good luck!

Marble.com - Derek 2012-07-18 14:22:00

Hello. I am not familiar with the stone name "black acid wash granite". Depending on the density and porosity level of the stone (which can fluctuate even between each shipment of the same color) you may or may not have to seal the color. Usually darker stones are stronger, however it does not harm the stone to seal it if you want to be on the safe side. Just remember to wipe off excess sealer that did not absorb after about half an hour after application so you do not get any streaking on the counters. For maintenance and cleaning, I recommend to purchase and use the AGM Daily Granite Cleaner and the recommended sealer at the moment is DuPont Bulletproof. You can purchase these products on www.MRSTONE.com

Elisa 2012-07-22 21:24:00

Hi, I have black granite countertops in my kitchen. Based on your article I don't believe they need to be sealed as they do not get lighter in color when water is left on them. My question is on one area (kindof a large area, 12in x 12in) the counter is dull and looks a bit scratched perhaps. When the light hits it it is not shiny like the rest of my countertop. It looks dull. I am not sure how this happened and what I can do to fix it? Thank you!!

Tricia 2012-07-22 22:33:00

Thank you for the education on stone countertops. I am building a house and thought I picked a beige granite as the countertop in the kitchen and bathrooms, but now found out it is marble. I have heard marble can stain, chip, and even gets rings from glasses. It is perlato royal marble... Would you recommend we change this to granite? My fiancé thinks if we seal it then it will be fine, but I am concerned we are not getting countertops than will last. Please help!

Jay 2012-07-23 15:23:00

Moved into a house with assn untreated/unsealed soft grey marble (I think) vanity countertop. It cleaned up pretty well except for the soap dish rings. I used a tile and stone cleaner, by miracle. Should I try steam, a poultice, dish soap...? Also, I don't care for the color so I'm probably going to try acid staining it, then sealing it. I the test spot I tried underneath looks good for color... have some experience with the staining, just not sure what to seal it with.

Fmdges 2012-07-25 21:25:00

jay l. I bought what is called rain forest marble for a counter top. I know that it is not marble, but it was a great price and I am a renter, and bascially this is an NYC tenement. so I did not want to spend a lot of money on a place that I will eventually be leaving. I realize that the "marble" chips along the fizzures. What type of resin can I use to fill the lines in? And should/must this counter be sealed? If so, then what type of sealer. I will be doing this myself. I don't mind stains, am very casual, and easy going; if areas lighten or darken well they are adding character or what I will see as signs of enjoyable usage. I am more concerned about health/safety issues. Of course I have no plans of cutting on the marble or putting raw meat or fish on it. Thanks

Marble.com - Derek 2012-07-26 14:18:00

Hello Elisa! I recommend to purchase & use the following product from our affiliate: DuPont StoneTech Polish. You can purchase it by online order right here: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-polish.html From my experience, it works wonders for situations such as yours. Hope this helps!

Marble.com - Derek 2012-07-26 14:29:00

Are you still able to change your decision? If so, I recommend to settle on a compromise. You can keep the Perlato Royal marble for the bathroom vanities. Marble is appropriate for a bathroom application as it's a low traffic area that is not generally in touch with strong chemicals or food acids such as the kitchen. Generally, it's mostly soap and water that will be on the surface of the bathroom vanity. Therefore, this marble can be used here as long as it's resealed once a year to keep the stone stain resistant, as your fiancé has correctly pointed out. In regard to the kitchen, a warm colored granite with beige undertones and highlights that I think would be appropriate is Astoria as well as perhaps Giallo Ornamental C. I've created a Comparison Chart for you: http://www.marble.com/material-compare/1658,1595,1505 I hope this helps!

Marble.com - Derek 2012-07-26 15:25:00

You're on the right track. I'd try a poultice to remove the soap & water stains. If successful, I would then reseal the vanity top with a strong sealer. Here is some literature for easy do-it-yourself solutions that a homeowner can prepare: http://tipnut.com/marble-granite-stains/ then for the sealer I recommend to purchase & use the following product: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html Hope this helps & good luck!

Marble.com - Derek 2012-07-27 15:20:00

Hello! I have just the products for you that you can use for the issues you've raised here. You can purchase online from our affiliate and use a Chip Repair Kit to fill in any chips you may encounter over time: http://www.mrstone.com/stone-care-products/repair-kits/chip-repair-kit.html For the sealer, I recommend a deep penetrating product so the marble stains stain resistant. You should purchase and use this one every six to twelve months: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html The sealers are non-toxic and VOC compliant so you can put food on the countertops, although I do not really recommend to do so.

Concern9 2012-07-27 19:40:00

Was looking at Tropical Brown Granite on you site, would this be a candidte for Sealing

Marble.com - Natalia 2012-07-27 19:50:00

Hello. My answer to you is: YES. Tropical Brown requires sealing upon installation then you should reseal the stone once a year to keep it stain resistant. Hope this helps!

Fmdges 2012-07-28 07:06:00

Jay/fmdges-Thanks Derek. I have just bought and put on the bathroom floor light green mint marble. The man who installed it used white grout which I am sure will get dirty in time: as in tomorrow. Again, I am renting a tenement like apartment and do not plan on being here more than five years. Should I also put the deep sealer that you suggested for the rain forest "marble" kitchen counter top on this floor? Also, I have not yet decided on the grout color for the rainforest marble, and the man who installed it will be on vacation till Sept. 1 Is it possible to appy a sealer and than grout afterwards? Thanks!

Jankovic momir 2012-07-30 06:27:00

I`m having installed white samaha (egyptian) marble for external tiles ,in specs it said for water absorption that it is 0.63%,and I`m having it all around swimming pool,what kind of sealant do you recommend and can I get guaranties for same.we are talking about 1000m2 of marble.thnx

Marble.com - Derek 2012-08-02 16:03:00

You should use the DuPont Bulletproof Sealer on the floor tiles upon installation. I am not sure about the sealing before grouting question (we really specialize in countertops not floor tiles), but I do know that grout lines should be sealer afterward, and I can recommend a product for that: http://www.mrstone.com/stone-care-products/sealers/dupont-stonetech-heavy-duty-grout-sealer.html?cPath=69 Hope this helps!

Bethieb 2012-08-05 20:42:00

I am considering deep purple (Brazil) granite and am wondering if it will need to be sealed?

Marble.com - Derek 2012-08-06 15:25:00

You need to use an impregnating sealer for your marble tiles. There are large sized containers you can purchase if you have a large surface area to cover. Take a look here: http://www.mrstone.com/granite-sealers.html?zenid=177b7jab3jk4dgb49582id37o1

Paul E. Kahl 2012-08-06 18:49:00

I've got a Kashmir White granite counter, just installed Friday the 3rd. I used SCI penetrating sealer after doing a water test on a scrap piece I had (The water soaked in Friday from a cup [I'm using the scrap as a coaster] that was 'sweating', and is STILL dark today.). http://www.homedepot.com/h_d1/N-5yc1v/R-202294008/h_d2/ProductDisplay?catalogId=10053&langId=-1&keyword=SCI+seal&storeId=10051 I followed the directions - coat liberally, then after it starts to dry, immediately re-coat. let it sit for an hour or more to be good to go. Now my once shiny granite that was unsealed is sealed... and the surface is no longer shiny! Sure, it reflects - about as well as a lake reflects when the wind is making the surface choppy. Help!

Marble.com - Derek 2012-08-10 17:39:00

Yes, your granite will need to be sealed upon installation to be stain resistant.

Marble.com - Derek 2012-08-10 18:16:00

It is indeed quite odd that the countertop no longer looks shiny or polished, after the sealing process. The sealer does not strip off the polish from the surface. Kashmir White is a porous stone that will absorb the sealer efficiently and needs to be resealed yearly. I recommend to perhaps contact the manufacturer of the sealer and tell them your situation and see what they have to say about their product. In addition, if you are interested, there is a product called DuPont StoneTech Polish that could be able to restore the shine to your countertops. Take a look here: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-polish.html?cPath=69

MattB 2012-08-15 22:33:00

Hi, thanks for your great article. We are having White Springs Granite countertops installed in our kitchen next month, Do we need to seal this counter? If so, are the 15 year sealants worth the money, I'd prefer not to have to re-seal every year? We were quoted $300 for the 15 year sealant. No pressure for or against from the fabricator/installer.

Mary W. 2012-08-16 20:42:00

Hello, I have a light granite (Shivaskashi) that I sealed with bulletproof. The first time I used the sealer, I had vertical dark streaks about 8" long on 2 separate sections of my counter top after about 4 months. The sections that are streaked are both about 18"x 12". I used the Dupont oil stain remover and all the stains came out (nothing was spilled by the way). After cleaning I re-sealed the granite with Bulletproof ( 2 coats and followed directions) and about 3 months later the exact streaks came back in the same spots. I read on a blog that Bulletproof can streak on some types of granite. Can you recommend a sealer that would not streak on my type of granite?

John 2012-08-18 06:30:00

Hello, Does your Ivory Gold granite require sealing? If so, what type of sealer do you recommend? Is Ivory Gold considered a porous granite? Is it possible to use low VOC water based sealers on Ivory Gold?

Steph 2012-08-19 01:54:00

Hi: We have had Star Beach granite countertops in our kitchen for about 2 years now. We have used a cleaner/sealer Stone Specific a few times to bring out the shine and we were under the impression that we ought to be sealing the countertops every year. We have noticed that on a couple of places on the island countertop that this is not an entirely smooth area-almost like pits. This has prompted some research on the web tonight. 1) Based on the description above, would the 'roughness' be more of sealant issue or just the natural stone progression? 2) Would you recommend that we continue to use the cleaner/sealer Stone Specific? 3) Does our particular Star Beach granite require sealing as now we understand, based on some reading tonight, that some granites actually don't need to be resealed. Thanks so much for your help.

Karenjoeyfont 2012-08-24 03:44:00

I am having new venetian gold granite countertops installed in my kitchen and bathroom. Does this granited need to be sealed? Of so, what product do you recommend for sealing and what product would you recommend for daily cleaning? Thanks!!

Marble.com - Derek 2012-08-24 13:09:00

Sorry for the late response. First off, congratulations on your new granite countertops! In regard to your question, my response is YES. The White Springs granite needs to be resealed and we recommend to use a regular, proven, and studied sealer and reseal once a year to keep the stone stain resistant. You would be surprised how easy it is to reseal a countertop, it should not take longer than 20-30 minutes in total to do the whole process. You can watch a video on how to seal right here: http://www.marble.com/video/granite-shorts/701 In addition, if you go to www.MRSTONE.com and for example choose the DuPont Bulletproof Sealer in 1 quart size, it will cost you less than the "15 year sealer" and should last longer than that time! hope this helps.

Kay 2012-08-24 14:03:00

We have a new juparana gold granite countertop in our kitchen. Our contractor said that it does not need to be sealed and that he in fact recommends that granite - in general - not be sealed. BUT, dark spots do develop when water sits on the counter - although the disappear within a few minutes. Should we ignore our contractor and seal this counter?

Lynn 2012-08-24 15:09:00

On Wednesday of this week, we had New Ivory Brown Granite installed. No mention was made of sealing. Based on the comments below, we did a water and oil test. It appears as if both left dark spots. Help! Which sealer should we use? Thanks so much for your informative site. Giafranco

Marble.com - Derek 2012-08-24 15:27:00

Hello! I recommend to purchase and use the following sealer: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector It's one of the strongest, most effective sealers from our testing. Hope this helps!

Marble.com - Derek 2012-08-24 15:34:00

Hello Mary. I'm sorry to hear that the Bulletproof sealer is not working for you by causing streaks and problems. It's a top of the line sealer in our industry but maybe it's a little too harsh or strong for a light, delicate color such as Shivakashi. I recommend to purchase and try the Superior line Zero Ultimate Stone Protector: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector Good luck!

Chabra 2012-08-25 02:46:00

Hello, Our kitchen has Giallo Veneziano counter top. The counter top is 7 yeras old. I recently noticed that when the sun shines on the counter top, there seem to be tons of evident lines going across the entier counter top. They are not scratches, but almost seem like lots of scratching. If I rub my finger, they seem to clear up in that area, then re-appear. Can you please advise what is this? Also, we have never sealed the counter tops. Do you reccommend sealing this granite? Kindly advise of what sealant would be best for the purpose. I am really very nervous about the lines, as I have lot of counter top here. I will sincerely appreciate your help

Marble.com - Derek 2012-08-27 17:44:00

Hello. Sorry for the late response. We do not carry this particular stone name, however I did a search online and have the general idea of what the Star Beach looks like. Since it's not an overall very dark stone, I think that it should be sealed once a year to keep it stain resistant. Generally, the darker the stone is, the less porous it would be. Let me back track a few steps before I answer the next question and ask, was this countertop installed by us? (All Granite & Marble). Just need to understand that. Thanks!

TidyFox 2012-08-29 18:34:00

Thank you so much for all the information, I learned a lot about granite, reading the comments & answers as well. We have a Silver Pearl granite countertop in our kitchen for 4 months now and were told at time of installation to seal it every 6 months. It looks great however it is sensitive to harder objects, not speaking about a chip on the edge of built in granite sink that just happened. It was installed by Granite America and was only $39 per square foot. Please, could you let me know how often do we really have to seal it and which sealer would be the best for this particular granite? If I put a wet cup on the countertop, it will leave a darker spot which disappears within a minute. I do lots of cooking and washing and clean the granite 2-3 times daily with a dry or damp microfiber cloth, depending on situation. Thank you in advance

Steph 2012-08-30 00:25:00

Hi; In response to your question, the granite was installed by another company..

Marble.com - Derek 2012-08-30 19:31:00

Hello! NVG needs to be sealed yearly to stay stain resistant. I recommend a top of the line, strong, efficient sealer for you, such as DuPont Bulletproof sealer and you should use the AGM Daily Granite Cleaner for your cleaning maintenance needs. Both of these products can be easily online ordered from our affiliate: www.MRSTONE.com Hope this helps!

Marble.com - Derek 2012-08-30 19:46:00

The dark spots that develop and disappear is the water absorbing into the naturally porous granite. If that was, for example, red wine and not water, your granite would be ruined (stained). Please seal the granite with a strong sealer. All natural stone is naturally porous and needs to be sealed to remain stain resistant. Some granite's need to be seldom sealed, such as dark colors like Absolute Black or Ubatuba. However, your granite needs sealing. I recommend to online order and use the following product: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle Hope this helps!

Marble.com - Derek 2012-08-30 20:00:00

I am not familiar with the "lines" you are referring to. I've never heard of such a thing that that if you rub it, it disappears, but then appears again later. If you take a photo and attach it to a response here, would I be able to see them? That would be helpful in trying to determine what it is. I recommend sealing your stone, and I suspect that if you do seal it, the lines will hopefully stop appearing. I recommend the DuPont StoneTech BulletProof sealer, it's one of the BEST in the business and will help your stone stay stain resistant. Seven years is a long time and I suspect your countertops are long overdue for a good seal. You can online order and use the recommended sealer by clicking on the following link: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Sue S. 2012-08-31 17:36:00

Greetings. I'm about to have Colonial Gold installed and am wondering what kind of maintenance is best for that stone in terms of sealant and frequency. I had no idea that the type of stone made a difference and after reading many of these posts, I'm a little concerned about it altering the appearance or even texture of the stone. Great site, by the way!

Marble.com - Natalia 2012-08-31 20:11:00

When you've explained putting a wet cup on the countertop and the water absorbing, you actually performed the test that we advise for people to do to find out IF the counertop needs sealing. Judging by the results you've given me (the water spot darkens and absorbs, then turns back to normal) this means that your Silver Pearl does require sealing, right now. If that was tomato juice or something for example, you would already have a stain! You should not have to seal more often than once a year (usually) unless your granite is extra porous (I have not found Silver Pearl to fit this category, however), therefore I am puzzled why after only six months it requires sealing. Perhaps your fabricator did not seal the stone properly upon installation, or maybe skipped this crucial step all together, although I do not want to speculate and give any company a bad name! What you should do, TidyFox, is seal your countertop. You can watch a video on how to do this properly by clicking here: http://www.marble.com/video/granite-shorts/701 and you can online purchase the sealer that I recommend for your situation (a strong, deeply penetrating product) by clicking here: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html It's called DuPont StoneTech Bulletproof Sealer. Let me know how things work out!

Marble.com - Derek 2012-08-31 20:50:00

Thanks for the response Steph. Have you contacted the fabricator that installed the countertop regarding this issue? That would be the best first step to take. What I am wondering is if the "roughness" you are describing in a few places on the island has been there since the beginning and you just haven't really noticed it until now (maybe it got worse over time). I am not trying to say that you were not careful in picking the countertops, it's just that maybe this roughness is inherent to the slab you picked and the slab is just like that. This may be because it's a lower quality slab or workmanship on the slab, as the roughness could of been caused by uneven polishing of the surface at the quarry. If that was to be the case, this would be beyond your control as the roughness would of been present on the slab before you even purchased it. Just throwing some ideas out there. Another idea would be to contact a "Stone Restoration Specialist" (there are such people, you can do an online search for one in your area).and have them check out the countertops to see if they can buff out the roughness, if the fabricator does not want to work with you. In addition, I think that you should try new maintenance products. I recommend to online order and use the following for daily cleaning: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html and the following for your sealing needs: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle and it does not hurt to try and use the DuPont StoneTech Polish as it adds a shine and polish to the surface finish which might help with the roughness: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-polish.html I hope all of this helps!

Steph 2012-09-01 17:58:00

Thank you. I will strongly consider your comments.

Marble.com - Derek 2012-09-01 18:00:00

You're welcome Steph, and good luck with everything! :-)

Marble.com - Derek 2012-09-01 18:16:00

Hi Sue! The Colonial Gold is a beautiful granite and congratulations on making a great decision. I recommend to online order and use the AGM Daily Granite Cleaner for your daily maintenance needs for the countertops. As far as sealing goes, if you are using our company, upon installation we will seal the granite so you will be OK for about a year. We recommend to reseal the stone yearly so it stays stain resistant. I suggest to again, online order and use a product called Superior line ZERO Ultimate Stone Protector. You can purchase directly both of these products from our affiliate www.MRSTONE.com

R shah 2012-09-02 19:48:00

This is great! I have Granite on my dinning table and been in use for 3 years with hot pans put on it. Also lots of spills and no damage. I have never applied any sealers on it. It matches exactly with what's explained in here.

Corey L 2012-09-04 20:01:00

Do you have a sealant recommended for Statuario Carrara marble? What is best to protect it as a bathroom vanity Top, especially against fragranced soap which tend to etch the surface too easily. Thanks!!!

Marble.com - Derek 2012-09-05 21:27:00

Sounds wonderful! Do you know the name of the granite you have,by any chance? Your particular granite must have a low porosity level and be very durable.

Jeannie 2012-09-06 00:15:00

Jeannie I had a new granite countertop (cashmere white) installed. They said it had been sealed. I experienced darkening around the sink. After it dried it look fine. I called back the company and they came back and sealed it. However I am still experiencing the same thing. Do you have any recomendations?

Nancy 2012-09-06 01:49:00

Hello, I work for a home builder and have heard from some of our subcontractors that you never want to seal granite because through the life of the product the granite will give off small amounts of radiation. The level of radiation I am told depends on what area of the world the granite came from. Therefore, you never want to seal in the radiation. Is that true?

Marble.com - Derek 2012-09-07 21:43:00

I would recommend the strongest sealer I am aware of -- DuPont StoneTech Bulletproof Sealer: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Marble.com - Derek 2012-09-11 15:09:00

That is very odd. What you are describing sounds like water absorbing into an unsealed stone. Does the darkened spot(s) dry up and turn back into the regular stone color after some time?

Marble.com - Derek 2012-09-11 15:20:00

While it is true that granite naturally does contain some radon / radiation, the levels are negligible and do not pose any health risk. The statement that you will "seal in" the radiation and trap it in the granite by using a sealer is a myth and not true. You can read more about radiation / radon in-granite at the Marble Institute of America official peer-reviewed scientific journals here: http://www.marble-institute.com/pdfs/countertops_radon_wp.pdf

Stan 2012-09-14 19:15:00

I have a baltic brown granite kitchen cointertop that was installed about 20 years ago. In genral it is smooth and still looks polished except are the sink where the color still looks fine but it is pitted in places and looks slightly duller. There is no staining. Does baltic brown granite need to be resealed ? If so should I seal the sections of the counter that still look fine? If so is a water or solvent baded sealer better?

Stan 2012-09-14 19:36:00

Correction of my prior e mail. I have a baltic brown granite countertop in my kitchen which was installed about 20 years ago. In genral, it is smooth and still looks polished except in a small area to the right of the sink where the granite is duller and pitted in places. There is no staining. Does baltic brown granite need to be resealed? If so, should I reseal the sections of the countertop that still look fine or just the area where it is pitted? If it should be resealed, should I use a water or solvent sealer?

R.Shah 2012-09-14 21:11:00

It is located in India and the Granite name is Icon Brown. Looks very close to http://www.d1014247-11.cp.blacknight.com/siteapps/30981/htdocs/products/5/44/brown-and-red-granite---icon-brown.html Will see if i can get the image.

Marble.com - Derek 2012-09-17 12:57:00

Baltic Brown needs to be resealed on the whole area of the countertop at least once every 2-3 days (every 12 months is preferred). I recommend a water-based sealer called DuPont StoneTech BulletProof. You can online purchase it here: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Marble.com - Derek 2012-09-17 12:58:00

That's a very beautiful stone. Congratulations! :-)

Stan 2012-09-17 17:54:00

Thanks Derek, What, if anything, should I do to the countertop before using the DuPont Stone Tech BulletProof ? Stan

Marble.com - Derek 2012-09-18 13:08:00

You should clean the countertop properly with a natural stone cleaner before sealing. Please watch this video on how to do this properly: http://www.marble.com/video/granite-shorts/698 Then, to learn how to seal the countertop properly with the Bulletproof sealer, please watch this video: http://www.marble.com/video/granite-shorts/701 Hope this helps!

Robert Michael 2012-09-20 06:46:00

We are using "Cremo Delicato" marble (from Carrara) for a commercial application on the top and face of a bar. The stone will need a sealer as it darkens with water. Is a honed finish practical, or would a polished finish be best for this high traffic, food and drinks area? Is the DuPont Stone Tech Bulletproof Sealer you recommended in other comments the best sealer to use?

Marble.com - Natalia 2012-09-20 15:12:00

Hello Robert. From experience, I can tell you that I have found the two best sealers to be the DuPont Bulletproof, as you've mentioned, and the Superior ZERO Ultimate Stone Protector, as well. You can order either one online from www.MRSTONE.com In regard to surface finish, I recommend a polished finish for a high traffic area. Best of luck!

Mszog2 2012-09-22 17:01:00

Is Giallo Antiqua a good stone for kitchen? How absorbent is it? Also I will need a seam will this pattern be hard to match?

Terrry7 2012-09-23 13:54:00

I'm getting Napoli (commodity granite from Lowes 1 year sealer, all I could afford) installed & need to know if it is one that needs an impregnator or a solvent based sealer & which one of your products do you recommend?

Marble.com - Derek 2012-09-25 13:27:00

If you are referring to Giallo Antico, yes this is an excellent choice for the kitchen. It's a strong stone with an average, normal porosity level (approximately 0.18 - 0.20 percent absorption by weight). It will need to be resealed once a year with a deep penetrating sealant. The pattern should not be difficult to match because it's a consistent, tight grain. The seam should be almost invisible to the naked eye for someone that does not know it's there! Hope this helps.

Marble.com - Derek 2012-09-25 14:01:00

Hi there. The Giallo Napoli / Napole is a timeless piece and a wonderful choice so congratulations on making a good decision in regard to your countertop selection. Once the granite is sealed upon installation, this coat of sealant should protect the stone for at least twelve months. After that time, I recommend to purchase and use the following sealer: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle

Scotttimm 2012-09-25 14:10:00

I have installed a pink marble floor material in my bathroom - how do i tell if it needs a sealant? Should I test with the sealant I purchased on a leftover piece of tile? I have Miracle Tile and Stone Sealer, Water-base, low VOC. Please help!

Terrry7 2012-09-26 00:17:00

Thanks so much for the quick reply! May I ask, Why do you suggest Zero Ultimate Stone Protector that only has about a 6 month lifespan? I would like one that lasts longer (as long as possible) I have 7 kids & lots of spills & I make alot of Breads that have a high fat content that have to be kneaded on the countertop at least 15+ minutes each time! Is Napoli prone to staining a (more porous type?) than say New Venetian gold? They are both the same price here in the 1 year commodity Granite, also is one more likely to not show the seam (I'll definitely have one somewhere in the sink section) also are there patterns & movement traditionally about the same ? It's not too late to switch, they haven't even done the template yet. Thanks for your time!

Marble.com - Derek 2012-09-26 13:51:00

If it's natural marble, then it should be sealed upon installation. It's a good idea to test out the sealer on a leftover piece of tile, you can go ahead and do that. Follow the directions written on the product on using the sealer properly.

Marble.com - Derek 2012-09-26 14:26:00

Where does it say that the sealer has a six month lifespan? Either way, the lifespan of the sealer is not set in stone (no pun intended), it's usually just the manufacturers recommendation. Giallo Napoli and New Venetian Gold are both consistent pattern stones with a tight grain and overall similar color tones. The seam should not be too visible in both choices, and they are a similar color tone so the porosity level will be close as well. You can also check out DuPont StoneTech Bulletproof, it's another very popular sealant: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Puckster888 2012-09-28 03:32:00

I was all set to purchase the non-sealed uba tuba at lowes for $39 per sq foot. The sensa went on sale Maroon Bay for $49 which has a fifteen year seal and also a free sink. (i actually want a different style sink than whats offered) The uba tuba looks slightly better with my light oak cabinets. (The colors look similar in my kitchen.) (I'm not replacing the cabinets because I have too many. Not many colors go with light oak). Is one granite better than the other? It's $1,000 difference in price. Remember the Uba tuba is not sealed. Am I sacrificing quality if I go with uba tuba? Puckster

Marble.com - Natalia 2012-09-28 14:12:00

Dear Puckster: The plus with the Ubatuba granite is that this specific color has a very low porosity level. Ubatuba is a naturally stain resistant granite as most very dark natural stones are. It seldom needs to be sealed, so you buy a product such as the Superior ZERO Ultimate Stone Protector in a small bottle for an inexpensive price, use it once, and be set for a few years. Take a look here: http://www.mrstone.com/granite-sealers/superior-zero-line-impregnating-sealer.html My colleague has had Ubatuba countertops installed a few years ago and besides the initial post-installation seal, he has not resealed the stone so far and never had any stains but uses the kitchen to cook very often. Therefore, I feel that you do not have to over-pay with the fancy sealer when you can purchase the ever-popular and classic Ubatuba granite for an affordable price. Hope this helps!

Marcia Redman 2012-10-01 22:35:00

We are looking to buy St. (Santa) Cecilia stone from either Home Depot or Lowes. H.D. has a sale at $38 with a 1-year sealer or a 15-yer sealer at $55.00 which is a $1,000 difference in initial cost. Would we be safe to purchase with the 1-year sealer?

Marble.com - Derek 2012-10-02 13:48:00

I think so. When we seal the countertops upon installation, we recommend for the client to reseal after one year. We use the strongest and most efficient sealers in the business. Usually it's either DuPont StoneTech Bulletproof Sealer or Superior ZERO Ultimate Stone Protector.

Pat 2012-10-02 16:59:00

We just had Juperano Columbo granite countertops installed. The fabricator did not mention anything about what if any care would be needed. We've never had granite before and I didn't realize they might need a sealant treatment. Apparently he did not seal them upon installation since we get dark marks on every water spot (fortunately they fade as the water evaporates) and several dark spots from a butter wrapper my daughter left on the counter (which unfortunately has not faded.) What kind of sealant should I be using, and will the butter stains be permanent?

Daisy 2012-10-02 23:53:00

About 6 months ago, I installed giallo ornamental granite in my kitchen. It was sealed by the installers and, after some darkening between the sink and dishwasher, they came back and resealed it. Now, I see the granite is darkening around the undermount sink. Should I try resealing it again? What's the best product to use on this type of granite?

Marble.com - Derek 2012-10-03 13:24:00

Hello Pat. I'm very sorry to hear that your fabricator did not leave you with proper stone care and maintenance information. Since the countertop is dangerously unsealed at the moment, you should try to remove any stains that did occur during this time before you sealer the countertop because sealing is a protective stain resistant invisible layer that will be on the surface of the counter, so any stains currently on the stone that won't be removed would be trapped underneath the layer of the sealer. I recommend to watch this video on how to remove stains such as the butter stain: http://www.marble.com/video/granite-shorts/1072 You should then purchase and use the following stone protector for your sealing purposes: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html You can watch a video with exact steps on how to perform the process properly here: http://www.marble.com/video/granite-shorts/701 and I also strongly recommend to purchase and use the AGM Natural Granite Cleaner for your countertop cleaning & maintenance purposes: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html Best of luck to you sir!

Marble.com - Derek 2012-10-03 13:56:00

Hi Daisy. I'm sorry to hear that your countertop continues to have water spots which usually indicates that it is not sealed or not sealed properly. One of the strongest stone protectors on the market that I recommend is the DuPont StoneTech Bulletproof Sealer: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html and you should watch the following video to learn the steps on how to seal your granite properly and efficiently: http://www.marble.com/video/granite-shorts/701 Hope this helps! :-)

Ulisesromo29 2012-10-03 16:57:00

We have a granite island and counters. I read the article about sealing them, but my question concerns very small recesses. That is when you run your hand across the top it doesn't feel 100% smooth. There are little tiny dips. Is this normal?

Nanajudy42 2012-10-03 22:21:00

Our NY condo is planning to redo the floors in all elevator lobbies. We'd like to have marble, honed or brushed, rather than polished, as I understand the coefficient of friction (COF) would be higher, and so be less slippery. Is this true? Are porcelains or granites less slippery when wet? Also, must we seal the marble after installation? I heard that that it Lowers the COF. What is the best method for a weekly cleaning of marble? Can just water be used? Must a wax be used to protect it, as this too would lower the COF? My condo board needs to be advised that the marble would meet the COF standards, and my understanding is that natural stone is difficult to classify, whereas man-made materials are lableled with the COF. I would like to keep the marble as untouched as possible by cleaners, waxes, etc, but at the same time protect it....please advise, thanks. Judy Levine

Marble.com - Derek 2012-10-04 14:01:00

It's difficult to say if this is normal or not. On a premium quality slab with a high quality, polished mirror-like surface finish, the stone should not have these "pits". However, occasionally you can have some and this does not affect the structural integrity of the countertops or anything like that.

Marble.com - Derek 2012-10-04 14:23:00

Polished surface finish can show off the veining of marble better than honed. Polished will be more slippery than honed, especially if wet. Polished will show dirt, scratches, smudges and smears more than honed. Honed is more porous than polished, so it's easier to stain. Etching that occurred on polished would be more visible than etching on honed. Polished on walls and honed on floors is fairly common in renovations. The marble should be sealed upon installation and you can reseal it to keep the stone stain resistant after a year or two. There are special natural stone products for marble that can be used for the cleaning and maintenance.

lwlmn 2012-10-06 20:22:00

Can you recommend a diy process and product(s) to remove a scratched area in polished black granite of a few inches in diameter, or is this a job only for a pro? I do not know how this was done on such a seemingly hard surface, I can only guess steel wool. Thanks.

lwlmn 2012-10-06 20:22:00

Can you recommend a diy process and product(s) to remove a scratched area in polished black granite of a few inches in diameter, or is this a job only for a pro? I do not know how this was done on such a seemingly hard surface, I can only guess steel wool. Thanks.

Marble.com - Derek 2012-10-08 15:09:00

Hello. I am aware of two do-it-yourself processes that a homeowner can try that have varying levels of success depending on how deep the scratch is. Please read the following two articles: http://www.ehow.com/how_6615987_remove-scratches-granite.html and http://www.wikihow.com/Remove-a-Scratch-from-a-Granite-Countertop Hope this helps!

msmommy 2012-10-11 03:10:00

Hello. We have what I believe is giallo fiorito countertops (I can't remember exactly from when we ordered them). My husband thought they sealed them upon install but as we've cooked we've noticed the countertops to the sides of the stove darkening. It doesn't do this by the sink or when there's water sitting to my knowledge. Is there any way to get rid of the darkened spots and then seal it? I'm just not sure what to do. Thanks.

Marble.com - Derek 2012-10-11 13:59:00

Hello. Do the darkened sports dry up then lighten back to the regular countertop color? If not, do you think it is possible that the countertop has become stained with some sort of oil stain? There are do-it-yourself ways to get rid of stains after which you would be able to seal the countertops. For example, please watch this video here to become informed on the subject: http://www.marble.com/video/granite-shorts/1072 The sealer I recommend to purchase and use is DuPont StoneTech Bulletproof: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Hallqui 2012-10-13 19:05:00

We had Uba Tuba granite counter tops installed in our kitchen a couple of years ago. With the dark color it is hard to tell if either water or oil is being absorbed. The installer said that it would need resealing in about three years and that they would be happy to do it for about $300. Is this really necessary? If so can I do it myself?

Joel 2012-10-13 20:52:00

My wife and I bought a mountain cabin a year ago and are just getting to the countertops. After a year of off and on searching for a stone, we have decided on "Rainforest Green" marble. Yes we are aware of the inherent dangers and drawbacks of the soft, heavily grained stone, but feel its uniqueness is worth the extra efforts in maintaining it. My question is are we better in the long run to go with a honed rather than polished finish and would the DuPont Stone Tech BulletProof be considered an absorbing sealer that would better benefit the honed surface. Any other advise you can offer in regard to the Rainforest marble would be appreciated! Thanks for your help! Joel

Ann 2012-10-15 14:45:00

I recently had a granite vanity top (with attached undermount sink) installed in my bathroom. I purchased the vanity top from Home Depot. Everytime water gets on the vanity top it leaves a dark spot. The spot disappears when it dries. The vanity top said that it was factory sealed and in addition I have tried to seal it multiple time. Nothing is working. Home Depot ordered a new vanity top for me and was going to pay for the installation. However, before we installed it, I tested it and it does the same thing. I don't know what to do. If I have to have it removed and then purchase something else, I will end up paying hundreds of dollars more.

Marble.com - Derek 2012-10-15 15:34:00

Two points here. First, Ubatuba granite is a very dense, dark stone that is quite stain resistant on it's own, so it seldom needs to be sealed. I actually had the same stone installed in my kitchen in 2008 and it has not needed sealing since. For your situation, it's been over three years since your installation and that is however a reasonable time to think about resealing your Ubatuba. Second, your installer is either crazy or wants to strongly rip you off (excuse my coarse language here). Sealing countertops is a very easy do-it-yourself process that any homeowner can do. You can online purchase an efficient sealer such as the Superior line Zero Ultimate Stone Protector for an affordable price (thirty five dollars for example) from our affiliate MrStone.com please take a look here: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle and you can watch our video that shows you step-by-step how to properly and easily seal your countertops by clicking here: http://www.marble.com/video/granite-shorts/701 So thirty five dollars vs. three hundred dollars? I hope this helps!

Marble.com - Derek 2012-10-15 15:44:00

It's a very good idea to go with a honed surface finish as this will minimize the visibility of any etching that many occur over the lifetime of the countertop. In regard to the sealer choice, the DuPont StoneTech Bulletproof sealer is one of the strongest and most efficient stone protectors on the market right now, so it's an excellent choice for your Rainforest Brown countertops. You can online order this product right here from our affiliate partner: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html Hope this helps!

dissapointed 2012-10-16 04:09:00

My granite has started to get red streaks in it. I have not spilled anything on it can anything be done to bring the granite back to its former glory. I think the granite was called alaska. I have only had the granite 10 months. It has also began to loose its shine what product should I use.

Trelover 2012-10-16 10:25:00

Have just installed polished marble in my small bathroom and love the look. So glad I wasn't scared off by all the negative advice. However, right after installation, I could see and still see, when looking at the tile not straight down, but from a 45 degree angle what looks like water spots. The non sand grout was cleaned off immediately after installation, then left to dry and wiped down again, What do you think this might be, can I remove it and should I seal polished marble on a small bathroom floor. Also bought 18x18 honed marble for my kitchen island and don't know what or if I should seal it. I read that some people do not recommend sealing natural stone? Help.

Marble.com - Derek 2012-10-16 14:36:00

Hello Ann. I feel your pain and I'm very sorry for all the inconvenience you're having with your new granite countertops. I must say that what you've described is very odd because after multiple sealing treatments the water stain / mark problem should have gone away. What you're describing is usually the perfect, standard issue of what happens to an unsealed countertop. The water absorbs into the stone, to dry up and disappear later, fortunately without leaving any visible stains (because it's only water). However, if for example oils are left on the countertop, then it would permanently stain. I really do not know why the water marks continue to occur, the sealer should provide a protective coating. Perhaps the countertops are not being sealed properly by the installers? the sealer should be left on the surface of the counter for at least half an hour to fully absorb into the pores of the stone, perhaps you should try leaving it on for an hour before wiping off any excess sealer that may not absorb. Also, I'm not sure what word to use here and mean no disrespect, but do not be "stingy" with the sealer, and apply plenty of it because there is no such thing as over-sealing, the excess sealer will simply not absorb and you can wipe it off later, but the countertop can be undersealed which is maybe what's happening here. Also, what is the name of the stone you have? You can watch our video on how the countertops should be sealed here: http://www.marble.com/video/granite-shorts/701 Also, maybe you should try having it sealed with a different stone protector if you've tried doing it multiple times with the same one with no results. For example, there are two different "types" of sealers. Solvent-based and water-based. Maybe one will work better for your situation than the other. Some of the two best in each category are Superior ZERO Ultimate Stone Protector (solvent-based) and DuPont StoneTech Bulletproof sealer (water-based). You can online order and try both from our affiliate www.MRSTONE.com Let me know how things turn out. Hope this helps & hang in there! :-)

Marble.com - Derek 2012-10-16 14:43:00

Hello. It's kind of a silly question to ask, but are you sure the red streaks are not part of the stone's color? If not, it sounds like the granite has been stained. was the surface sealed upon installation? If not, you must get the stain removed then seal the stone so it becomes stain resistant for the future. Please watch this video to learn some of the ways in which you can get stains removed from your countertop: http://www.marble.com/video/granite-shorts/1072 The directions in that video will only work if it's an oil stain. Do you have any idea what the red marks may be? Can you snap some photos and upload them on here so we can try to better identify the problem? In regard to sealing the countertops, I recommend to purchase and use this product: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html To restore that shine and polish to the stone's surface, I recommend to purchase and apply the following product from the world famous stone maintenance DuPont brand: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-polish.html

Marble.com - Derek 2012-10-16 14:53:00

Hello. I will start from the back and answer your last question with an assuring YES -- natural stone, especially marble, SHOULD be sealed. So you can go ahead and seal your polished marble floor and honed marble tiles. This will help by creating a protective coating on the surface of the stone so it becomes stain resistant. The tiles will not become slippery or anything like that. You can use the versatile DuPont StoneTech Bulletproof sealer for this: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html and I also recommend that for cleaning & maintenance purposes, the DuPont brand offers an efficient product called the StoneTech Mold & Mildew Stain Remover that is great for tiled natural stone floor surfaces: http://www.mrstone.com/stone-care-products/granite-cleaners/dupont-stonetech-mold-mildew-stain-remover This product may be able to remove the water marks on your tiles. Use it first before you do any sealing as you want the tiles to be as clean as possible before sealing them. There are also do-it-yourself guides for homeowners on how to get rid of water stains on marble floors. Take a look here: http://www.ehow.com/how_6017789_remove-water-stains-marble-floor.html Hope this helps! :-)

Siham 2012-11-10 20:14:00

HOW TO REMOVE A SEAM FROM GRANETTE COUNTER TOP

confused 2012-11-11 12:01:00

I am so happy that I found this site. We are interested in replacing our current counter tops with granite. We are interested in Azul Platino but it is a lighter color. I am concerned with staining. Are we better to pick a darker color? Thanks so much!!!

Marble.com - Walter 2012-11-12 17:54:00

With the really well performing sealers there's little to be worried about when selecting a lighter stone (so long as it's a granite). We recommend the Superior ZERO sealer (http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle).

Marble.com - Derek 2012-11-13 15:23:00

Hello, do you mean how to remove a stain, or an actual seam? A seam cannot be removed, it's a permanent joint / connection of two pieces of countertop to allow for a longer continuous predetermined length.

Marble.com - Derek 2012-11-13 15:24:00

Hello. Another popular sealant option, that is water-based (instead of a solvent-based form, like the Superior ZERO product) is called the DuPont StoneTech Bulletproof Sealer. For purchasing information, please click here: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Janet Blum 2012-11-21 02:33:00

I had my kitchen done in February with black/tan granite. I was told to seal it every 6 months. I recently sealed it and now it is streaky and cloudy. I keep buffing it with a soft towel, paper towels but nothing helps. It is driving me nuts! i think it probably did not need to be sealed and is a residue. Now what do I do? Do I need to strip the sealer??

Marble.com - Natalia 2012-11-21 15:01:00

Hi Janet. I think you're on the right track as to what happened. Personally, I recommend to have granite resealed once a year at most. Especially if it's a dark colored stone because those are more dense and less porous (most of the time). So this does not happen again, when you seal the stone, you should only allow it to soak in for about 20 minutes, then wipe off any excess sealer that won't absorb so the hazy streaks do not occur. The remaining sealer on the surface should be removed with something absorbent, ideally a white paper or cotton towel. However, since this problem has happened already, there are a number of ways in which the problem might be rectified, depending on the circumstances. For example, if a solvent sealer was used, it is sometimes possible to use a little more of the actual sealer, the solvent carrier-fluid it contains can sometimes re-dissolve the residue allowing it to be wiped away with an absorbent cloth. For other residues, we would recommend the use of Nanoscrub. First apply a little water to the affected area, and then add a little Nanoscrub and scrub. Rinse well and dry down with paper towels. For really stubborn or thick residues that have been left for some time, a stripper may be required. In such situations we would recommend Sealer & Coating Remover, applied neat and left on for a minimum of 30 minutes before scrubbing with a white nylon pad. Apart from the last remedy (using a stripper) the others should not result in the need to re-apply more sealer afterwards. So, it need not be the end of the world if a sealer residue is left on the surface, but it is of course better to avoid the problem altogether, by applying the sealer correctly in the first place. Lastly, to avoid this problem all-together, since you have a dark stone, I recommend to purchase and use the AGM Daily Granite Cleaner for cleaning and maintenance purposes. This cleaner has a little bit of sealer in it as one of the ingredients, so the countertop gets sealed little by little each time you clean which over time will remove the need for sealing your countertops at all (since your particular stone is probably not very porous in the first place). You can buy this product here: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner-3-pack.html Hope this helps!

Debzuke 2012-12-01 06:36:00

Hi! I had Black Galaxy counter tops installed a few days ago. After they installed the back splash, and had sponges with thinset residue and grout residue laying all over it for several hours, parts of it have a white haze and it isn't shiny in those areas now. Please tell me this is something that can be fixed. (And by the way, what is it?) Thanks!

Mariya Kornilova 2012-12-04 14:41:00

Mariya Hi! I had my granit counter tops installed yesterday (very light color). And I already discovered that it absorbs water very quickly and I already have an oil stain on it :( I tried to remove it with kitchen cleaners that I have, and no luck so far. I would like to seal it, and to my understanding I would need a solvent based sealer. But at first I would need to remove that nasty oil stain before I seal it. Could you please help me with choosing proper stain remover and sealer please?! Thank you!

Marble.com - Derek 2012-12-06 13:54:00

Hi Mariya! :-) You are correct, first the oil stain has to be removed, then you can seal the countertops so they become stain resistant. I recommend to watch the following video to learn how to remove the oil stain: http://www.marble.com/video/granite-shorts/1072 The professional product used in this video (as opposed to the home-made method) can be online ordered here: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-oil-stain-remover.html?zenid=0r6eqp9gfhupmvorp25vgj34q6 In regard to choosing a heavy duty solvent based sealer, I recommend to purchase and use a product from the Superior line called ZERO Ultimate Stone Protector: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector Hope this helps & Let me know how things turn out!

Marble.com - Derek 2012-12-06 14:02:00

Hello. Was the countertop installed by us? (All Granite & Marble). This sounds like it's grout residue to me, although it's of course difficult to say without seeing the situation myself. If that's the case, then you should be able to gently buff this out with #0000 steel wool. Make sure that the wool is wet when applied and used. Best of luck!

Adrianna 2012-12-08 18:18:00

Hello, We just installed our granite counter top (black with dark green specks). Should we seal our countertops? It will not keep its shine when wiped down with a wet cloth. Do we just need to buy a different type of counter cleaner? Our friend sealed their counter and told us that that might be the problem. Can you help?

Marble.com - Derek 2012-12-11 19:54:00

Hello Adrianna. You should indeed seal your countertops if they have not already been sealed upon installation. I recommend to online order and use the Superior ZERO Ultimate Stone Protector: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector while for daily maintenance & to help the counter keep it's shine, I recommend to purchase and use the AGM Daily Granite Cleaner: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html Hope this helps!

Kmselbrede 2012-12-18 17:22:00

I have a composite marble counter that has a flat finish. I recently cleaned it with baking soda which did a good job. Should the composite marble now be sealed? If so, what sealer do you recommend? Thanks. Keith

Marble.com - Derek 2012-12-20 18:22:00

Hi Keith. We do not carry composite marble therefore I'm not familiar with this material. From what I understand it's a mix of natural marble chips or powder, polyester resin, and color pigment. That should make it less porous, but I'm not sure if it requires a regular natural stone sealer. Perhaps if you still have the fabricator's or manufacturer's contact information that provided the countertop you could ask them about that as they would know best in this situation.

Pat 2012-12-22 14:07:00

I have grout haze on my granite counter top tiles that I can not get rid of. Is there anything I can use to get rid of the haze?

Marble.com - Derek 2012-12-28 15:36:00

Hello Pat. The hazing can be caused by a few different reasons. It would help to know the name of the granite that you have. Thanks!

Mike 2012-12-29 15:29:00

First, this is a great site and I'll pass along the link to my friends. Second, I am looking to install a granite counter top (Revelations is the name) because granite is one of the hardest stones around. As I read it seems granite is kinda easily ruined. Revelations is a light colored granite and my biggest worry is tea stains. Will sealing help to prevent these types of stains?

Marble.com - Derek 2013-01-03 13:41:00

Hello. I am not familiar with the granite name of Revelations. I've researched online and come up with some pictures. It looks like a beautiful piece of stone. Naturally, granite is porous (although much less compared to marble) so if you reseal the countertops once a year with a solid product, it should be quite stain resistant. For you, I recommend the Superior ZERO Ultimate Stone Protector. Take a look here: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle Hope this helps!

Shellydaycare 2013-01-03 17:13:00

Ok, I know this was crazy but yes I did it!! I sanded my granit counter top in the bathroom because of scratches and nicks in it....result's of sanding I have no shine what do i need to do to fix it.

Steve Perdue 2013-01-05 22:10:00

We had a light Emperador polished slab marble shower installed several years ago. It was sealed at that time, but I have not sealed it since. It still looks great. Do I need to seal again? I clean it with a mild stone soap every so often.

Marble.com - Derek 2013-01-08 15:09:00

I recommend to contact a Stone Restoration Specialist in your area. You can find one by doing an online search. Your countertop will probably have to be re-buffed in the sanded area. However, that's not really a do-it-yourself job unless you have some experience with polishing tools and pads.

Dave 2013-01-10 04:51:00

I had granite counter tops installed almost a year ago.Since day one I noticed the edges are lighter in color than the top without any shine.The installer told me his workers polished the edges. Is their a product out there to get the shine and darken the color? The edges are smooth to the touch

Marble.com - Derek 2013-01-10 17:36:00

Sounds like it's time for a reseal to make sure the stone continues to be stain resistant and protected by the sealer. For marble, I recommend the DuPont StoneTech Bulletproof Sealer: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Meredith 2013-01-11 16:00:00

About two months ago, I purchase White Carrara Marble for my fireplace. This morning, I noticed that there were several spots under the marble that appeared to have wet spots. It is a fireplace, which is never used and there has been not contact with water or other substance. What could be the cause of the spots?

Marble.com - Derek 2013-01-16 15:05:00

Hi Dave. The edges can be a little lighter but it should not be too noticeable. Was the countertop installed by us?

Marble.com - Derek 2013-01-16 15:23:00

Hello Meredith. Was the fireplace surround installed by us? Also, can you provide photos?

Emily 2013-01-17 01:59:00

Hi...I was wondering how "high maintenance" White Carrara Marble or any other similar marble is? Is it really that easy to stain and etch? I would love to use it as my kitchen countertops, but am hesitant because of all the "warnings" out there. We do use our kitchen so it's not like things won't spill, etc. Is there a benefit to honed over polished? A sealer that is rather good to resist stains/etches? Thanks for any input!

Emily 2013-01-17 01:59:00

Hi...I was wondering how "high maintenance" White Carrara Marble or any other similar marble is? Is it really that easy to stain and etch? I would love to use it as my kitchen countertops, but am hesitant because of all the "warnings" out there. We do use our kitchen so it's not like things won't spill, etc. Is there a benefit to honed over polished? A sealer that is rather good to resist stains/etches? Thanks for any input!

Kristin 2013-01-19 18:26:00

Hi there! We purchased a house with a great deal of polished marble counter tops in the kitchen. They are covered with etched rings, marks, etc. and always look like they aren't clean, especially when the light is shining in on them through the windows. We have the exact same marble counter tops in 2 bathrooms, but it is honed and much easier to deal with. Yesterday I was so fed up with the appearance of the kitchen counters that I got out a jug of vinegar and poured it all over the surfaces!! This took off all the shine and brought them back to a honed look. You can no longer see the etchings, which is great, but now I'm left with a rough unprotected surface. I'm wondering what I should do next. I don't want to go back to the polished look. Can you recommend a product that I can use that isn't too difficult to use and readily available? Thanks!

Dgorczyca 2013-01-21 03:50:00

No it was installed by a granite company, I have been told by other company's over the phone that he didn't polish it enough. His response was that his workers did and their may been a dye used on the granite itself.

Mjke Hickey 2013-01-21 15:59:00

why seal granite tops

Marble.com - Derek 2013-01-22 13:56:00

Hello Emily. I recommend to read the following topic on our Marble.com Forums that covers your exact question quite extensively: http://www.marble.com/forum/showthread.php?379-I-just-dont-know Hope this helps!

Marble.com - Derek 2013-01-23 16:05:00

Hi right back at you, Kristin! :-) I'll start of by saying congratulations on the hands-on do-it-yourself approach to strip off the polish from the marble tops. I agree that a stripped, honed finish is the most appropriate for a marble application because this surface minimizes the visibility of those ugly etch marks. Personally, that's the only way (honed) I would ever want to have marble countertops for any area in my own home. In regard to a protector for the now vulnerable marble surface, I recommend to online purchase and use the excellent SUPERIOR line ZERO series Ultimate Stone Sealer from our affiliate MrStone website: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle and you can watch our helpful video on how to seal the countertop properly by clicking here: http://www.marble.com/video/granite-shorts/701 Hope this helps!

Karen 2013-01-25 08:06:00

Hello, can someone please help me? I have a marble bathroom that is completely ruined. It gets black mold so easily - in a week i see small black mold forming on the vanity counter tops and walls. My maid uses a strong mold remover and sometimes even bleach to remove the mold weekly. The strong cleansers (i assume) have taken away the polish, shine, colour - everything - from the marble - it looks like faded stone now. Any way to get back the shine and colour of the marble? Also, from what I understand, the mold occurs because I don't have a ventilation fan or big enough windows, so the bathroom remains wet long enough for mold to occur. Is this correct? So, I'm getting a new house soon, and those bathrooms are also marble. I don't want to have the same problem, especially since i won't have a maid to help either. Hence these new marble bathrooms have good lighting, fans and huge windows to ensure they dry up fast. But I really don't want to deal with mold or mildew or black stuff ever again!! So, will the lights, fans and window eliminate my past problem of mold? Any thing else i can do? Also, I want a really maintenance-free bathroom as much as possible - a bathroom that i do NOT have to wash down or scrub down or soap down or use this chemical and that cleaner to keep clean - i really want a bathroom i can simply take my hand shower and rinse with water and that'll be enough. So would marble be a good choice for rinse only maintenance or maintenance-free bathrooms? I know I've asked many questions, but I'm clueless about these things, and I don't want to face the same problems i'm facing now with my ruined marble bathroom, so thank you in advance for answering!

Karen 2013-01-25 08:12:00

I forgot to add something - with the new bathrooms, I and my husband take very long showers, and i mean VERY long - like an hour each, 90 minutes if I'm washing my hair, so the bathroom remains wet, humid and with a high temperature from the hot water for about 2-3 hours each day (we shower one after the other). Could that also be why our old marble bathroom has lost its colour and shine? Too much heat maybe? Having said that, with our new bathroom, should we seal or unseal the marble, given that the bathroom will be wet and hot for about 3 hours at a stretch? The marble is on the walls, vanity counter tops and floor. Please help! Thanks! Can you also recommend if we need to polish the marble in our new bathroom? I'm hoping for a maintenance free bathroom so can the marble go unpolished? Thanks!

Marble.com - Derek 2013-01-25 17:21:00

Hmm, that does sound suspect. Can you upload photos of the issue so we can examine it here? Let me know if that's possible. Also, please understand that we cannot really fault the fabricator/contrast, we can only give our opinion, because we did not install the project. We don't want to end up in any sort of litigation between the two of you because of something we might say about the project. Hope that makes sense.

Marble.com - Derek 2013-01-25 18:05:00

Hello Mjke. There are many reasons why you should seal granite countertops. The most important one that would be is that sealing will help prevent staining in the naturally porous stone. I recommend to read the following article: http://www.marble.com/articles/to-seal-or-not-to-seal/

Betty 2013-02-09 05:28:00

Hello we just built a new house and put natural stone one floors and dark embrador in master shower, when it is wet it is darker and when it dries it is lighter. the water beads up on the shower tile but still get dark when wet. the kitchen has travertine tile our builders tile guy says all of it is sealed but if so why does it change colors when wet? thank you. Murphey

Marble.com - Derek 2013-02-13 15:31:00

Hello Karen. We seem to have missed your comment -- please accept my deepest apologies for that. I will try my best to full answer your concerns now: for the new home, I recommend to install granite for the vanity tops as opposed to marble. It may minimize the problems you're having now because a) granite is less porous b) granite is more durable. In regard to the mold problems, I recommend to purchase and use the following products for maintenance of the counters if the problem persists in the new bathroom: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-professional-mold-mildew-stain-remover and http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-professional-soap-scum-remover Hope this helps!

Marble.com - Derek 2013-02-13 15:35:00

I think the bathroom countertops lost their color and shine because of the strong cleaners that were used to combat the mold. Natural stone (especially marble) is actually quite delicate and abrasive chemicals may strip and damage the surface finish of the stone. That's why cleaners especially formulated for natural stone should be used for cleaning and maintenance (like the products from MrStone.com I've recommended in the previous comment). However, the heat in the bathroom could of contributed to the mold problem, that's for sure (especially if you don't have proper ventilation). The vanity top should be sealed upon installation and then resealed about once a year to help keep the stone stone resistant. I recommend the following product for sealing purposes: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle The surface of the stone should already be polished, however you can opt for a honed surface which is without polish (this is done during fabrication of the countertops). The maintenance is the same for both finishes, but if you like honed better then I think it's a great idea. Best of luck!

Doublejoz 2013-02-13 23:37:00

Im going to reseal my granite countertop, but there is a dark water stain around the faucet. I have an undermount sink so it is very noticible. It has soaked almost all the way through the granite.I want to remove this mark before I seal because I dont want to seal it in. Is there a DIY way to do this?

Junkstuffy 2013-02-14 14:12:00

Can you sand a marble window sill? If so, what should I use?

Pircey 2013-02-14 14:38:00

Should I seal marble floor tile? It is a high gloss finish.

Marble.com - Derek 2013-02-14 15:14:00

Hi Betty. Without actually seeing this problem in-person, I am able to make the only following conclusions: it sounds to me like the Emperador Dark marble was in-fact not properly sealed. Perhaps the surface was unevenly sealed in some areas or the sealed did not absorb efficiently. I make this conclusion on the fact that you've said the surface darkens when it's wet. That's a classic sign of the surface being unsealed. I recommend to reseal and see if that helps, here is a video with directions on how to seal properly: http://www.marble.com/video/granite-shorts/698 (although it's for countertops -- the same steps apply). Best of luck!

Marble.com - Derek 2013-02-14 18:46:00

Hello Pircey. I will point you to a topic on our Marble.com Forums that answers this specific question in-depth: http://www.marble.com/forum/showthread.php?1062-Sealing-tiles&p=3460&posted=1#post3460 Hope this helps!

Hawthice 2013-02-17 21:00:00

About a year ago we rebuilt our shower using a product called Marblestone. We squeegee it religiously after every use so it still looks like it did the day it was installed. We love the stuff! My understanding is that it should be sealed about every year just as natural marble would be. Is there a difference between (low priced) products like Granite Gold Polish and the much higher priced sealers like the DuPont Bullet-proof Sealer you mention on this site?

Marble.com – Adrian 2013-02-18 18:12:00

Hi, I'm really happy that you like marble stone ! The diffrences in the prices is about that Granite Gold Polish is a daily cleaner and DuPont Bullet - proof is a sealer which you use once or twice a year. Also you can find some informations about stone care products on that website: http://www.mrstone.com/stone-care-products.html .

Mstrabo 2013-02-20 03:40:00

Hi! We have a table with a carrara marble top. We used a spray cleaner followed by a stone "spray-n-seal" that is "safe for use on granite, marble, limestone, all natural stone, grout and slate." My husband followed the directions on the bottle, except that he used paper towel instead of a terry cloth towel to wipe off the excess. The table is VERY streaky. Does your advice to Janet Blum (below, from about 3 months ago) apply to marble as well? How can I tell if the sealer we used is a "solvent" sealer or not?

Marble.com – Adrian 2013-02-20 17:00:00

Hi, Please accept my depest apology in delay of respoding. I would recommend you purchase one of cleaner product on MrStone.com - DuPont Stone Tech Professional Soap Scum Remover: http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-professional-soap-scum-remover . It is design for removing soap scum and hard water stains, so it should help you ! Also please watch video before you will seal your countertop: http://www.marble.com/video/granite-shorts/701 . Good luck !

Pdsullivanct 2013-02-23 22:20:00

My new master bathroom is 90% complete. I chose honed black granite for the counters, and for a bench in the shower. I am unclear on how to care for these countertops. The contractor hasn't said anything (I should ask him) but for now, it almost seems like there are white "chalkly" looking streaks here and there. They do wipe up, but then I see other ones later. I heard that Method Daily Granite cleaner is a good thing to use. But do these come sealed? Should I seal them? Should I have them 'enhanced'? Not sure. Thanks.!

Marble.com – Adrian 2013-02-25 20:55:00

Hi, you can go with Natalie advice because it would be same for marble, but marble you should seal every 6 months. About the "solvent" maybe you can find some informations on your "spray - n - seal" what kind of ingredients it has? Natalie advice: "Hi Janet. I think you're on the right track as to what happened. Personally, I recommend to have granite resealed once a year at most. Especially if it's a dark colored stone because those are more dense and less porous (most of the time). So this does not happen again, when you seal the stone, you should only allow it to soak in for about 20 minutes, then wipe off any excess sealer that won't absorb so the hazy streaks do not occur. The remaining sealer on the surface should be removed with something absorbent, ideally a white paper or cotton towel. However, since this problem has happened already, there are a number of ways in which the problem might be rectified, depending on the circumstances. For example, if a solvent sealer was used, it is sometimes possible to use a little more of the actual sealer, the solvent carrier-fluid it contains can sometimes re-dissolve the residue allowing it to be wiped away with an absorbent cloth. For other residues, we would recommend the use of Nanoscrub. First apply a little water to the affected area, and then add a little Nanoscrub and scrub. Rinse well and dry down with paper towels. For really stubborn or thick residues that have been left for some time, a stripper may be required. In such situations we would recommend Sealer & Coating Remover, applied neat and left on for a minimum of 30 minutes before scrubbing with a white nylon pad. Apart from the last remedy (using a stripper) the others should not result in the need to re-apply more sealer afterwards. So, it need not be the end of the world if a sealer residue is left on the surface, but it is of course better to avoid the problem altogether, by applying the sealer correctly in the first place. Lastly, to avoid this problem all-together, since you have a dark stone, I recommend to purchase and use the AGM Daily Granite Cleaner for cleaning and maintenance purposes. This cleaner has a little bit of sealer in it as one of the ingredients, so the countertop gets sealed little by little each time you clean which over time will remove the need for sealing your countertops at all (since your particular stone is probably not very porous in the first place). You can buy this product here: http://www.mrstone.com/granite..."

Marble.com – Adrian 2013-02-26 13:41:00

Hi, If your countertop haven't been sealed after the installation, I would recommed you to do this using Superior ZERO Ultimate Stone Protector, you can purchase it here: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector. However for daily maintenance & to help the counter keep it's shine, I recommend to use the AGM Daily Granite Cleaner, which has an ingredient that seals as it cleans so then it's enough to seal every 1-2 year: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html. Please find the video how to seal properly: http://www.marble.com/video/granite-shorts/701.

Tom 2013-03-21 11:10:00

I am having my new granite counter tops installed next week. the fabricator want's $200 to seal them - about 50 SQ feet are there products better or should I wave that fee and do it myself?

Marble.com – Adrian 2013-03-22 13:24:00

Hi Tom, I recommend to online order and use the Superior ZERO Ultimate Stone Protector: http://www.mrstone.com/stone-care-products/sealers/zero-ultimate-stone-protector-in-spray-bottle While for daily maintenance & to help the counter keep it's shine, I recommend to purchase and use the AGM Daily Granite Cleaner: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html Here you can find the video how to clean your countertop by yourself: http://www.marble.com/video/granite-shorts/701

Najm 2013-03-25 01:53:00

Hey guys if anyone knows that granite tan brown needed to be sealed or not, I read some where that like Ubatauba it doesn't needed to be sealed

Marble.com – Adrian 2013-03-25 19:30:00

Hi, we always do the sealing after the installation and also recommend to seal granite every 12 months even if it's a dark stone. Then you can avoid some stains for daily maintenance and keep the shine I recommend to purchase AGM Daily Granite Cleaner: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html .

remodelist 2013-03-27 02:05:00

Hello Thinking about getting bianco romano granite for kitchen countertops....on sale at Lowes without sealing....should I go without sealing?and then seal the countertops ourselves? help....

Marble.com – Adrian 2013-03-27 15:00:00

Hi, You can do the sealing by yourself. For the "white" granite I recommend you to purchase one of the strongest stone protectors on the market the DuPont StoneTech Bulletproof Sealer: http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html and you should watch the following video to learn the steps on how to seal your granite properly and efficiently: http://www.marble.com/video/granite-shorts/701 I also recommend to purchase and use the AGM Natural Granite Cleaner for the countertop cleaning & maintenance purposes: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html

Oeremb 2013-04-03 12:54:00

Hi thanks for the tips. Can I seal Marble Gardina?

chickenfog 2013-04-06 20:44:00

I did both the water and oil test to check penetration. Nothing happened, no change in the shiny dark granite. Should I assume it's sealed? It's a few years old and I've never done anything but wipe it down since installation (no sealers or special cleaners).

Marble.com – Adrian 2013-04-09 17:48:00

Hi, Is Marble Gardina a name of the stone ? I couldn't find the name in the internet and we haven't got such a name for a marble. If this is a name for marble, you should seal it every 6 months. Please find the video how to do this: http://www.marble.com/video/granite-shorts/701. Also I would recommend you to visit a website with some products, which you can use to seal it: http://www.mrstone.com/stone-care-products.html .

Marble.com – Adrian 2013-04-09 17:53:00

Hi, I would recommend you to seal your countertop just for protection, especially when you haven't sealed it yet. Also I suggest you to use an AGM daily granite cleaner, which already has the seal inside the product, then you will seal it when you clean it. You can purchase it from that website: http://www.mrstone.com/granite-cleaners/agm-daily-granite-cleaner.html?cPath=69

Ombradesign 2013-04-18 06:59:00

can marble be left outside as a BBQ bench top?

Marble.com - Adrian 2013-04-20 15:16:00

Hi, I will not recommend you to use a marble on the outside, because it can stain and scratch more easily. It is not as hard as granite and therefore not as durable. Considering the facts at hand, granite provides the best option for a BBQ bench top and also please take a look which one granite is good to use on the outside.

Iowaboy 2013-04-23 19:21:00

My new granite has been sealed but within minutes of ownership was permanently scarred by anything that dripped on it. Wine takes only 2 seconds to permanently destroy the finish. Even though I spent $10k on the installation I'll probably rip it all out next year. Whoever says that granite is a good countertop surface for a kitchen must only use their kitchen to look at.

So disappointed 2013-04-29 17:13:00

Hello, I hope you can help me. About two months ago we had marble tiles installed as my kitchen countertop. We used a tile from Menards called MS International Polished Floor or Wall Tile (description also says for countertops) 12"x12" in the Nero Marble color. It is black with white veins and is highly polished. We sealed it using Miracle Sealants Co. 511 Impregnator Penetrating Sealer (also from Menards) - 2 coats. My problem is this: While the sealer does make liquids bead up on the surface, if they are not wiped up within a couple minutes they leave a permanent hazy spot. The same with anything that is not absolutely dry, e.g. a bit of vegetable, sauce, wonton wrapper, milk, or heaven forbid, anything that produces steam, and lemon juice is just right out - I have a little ring from that too. I am paranoid to even use the counter and despite almost fanatical wiping up of anything that gets on it, the spots are multiplying. I can't afford to redo the counter and I nearly weep whenever I look at it. I could survive the spots that are on it now if I can just find some way to prevent getting any more. Can you suggest a better sealer that I could use? Even better, is there some way to remove the spots (mostly water and steam spots) short of having the whole thing refinished?

Marble.com - Walter 2013-04-30 21:03:00

Dear So Disappointed, The sealer, although it's a good one, is not going to do much good in this case. What you're describing as hazy spots is actually etching. Marble consists mainly of calcium, which reacts with acids. Most liquids in a kitchen (juices, alcohol, etc.) are acidic. So to reiterate, these spots are not stains, but a damaged (eroded) surface of the marble. The only way to fix these is by re-polishing. As for prevention, there really isn't a fool proof way to stop these. First line of defense would be a topical sealer (as opposed to the penetrating one you used). Topical sealers build a layer of protection on the surface, preventing liquids from getting to the stone. Sorry to be the bringer of bad news. I'm rather surprised the tile manufacturer recommends countertop use... Are you sure there wasn't a warning about etching somewhere?

Marble.com - Walter 2013-04-30 21:06:00

That's a bit harsh. What was the granite sealed with? Are you positive that it was in fact sealed? I've yet to see a granite that stains in 2 seconds - even unsealed. What is the surface finish?

Befuddled 2013-05-05 03:17:00

Hi, I just had River White installed in my kitchen. Can you tell me how porous this granite is and how often it needs to be sealed? I did not purchase from your company and am very upset with the installers sloppy work. Without going into a rant, based on your opinion, do you think this installer sealed my countertop? I have water staining that leaves a dark mark that disappears after 5-10 minutes and I already have an oil stain that has left an ugly dark mark. What should I do to clean this oil stain and which product should I use to seal my granite? Zero Ultimate or Bulletproof? Will these products affect the 'gloss' of the granite and will either protect from stains created in a kitchen with a family of four that include two messy boys? Colored juices, cooking, etc?

Marble.com - Walter 2013-06-10 17:49:00

Hi. River White is a pretty porous stone but should be ok when sealed. Use the Oil Stain Remover on your stain (http://www.mrstone.com/stone-care-products/restoration/dupont-stonetech-oil-stain-remover.html). Then clean the countertops and let dry completely over a few hours. Apply the Superior Zero sealer as in the video above. DO NOT LET IT DRY on the surface - key part. Keep wetting the surface until it doesn't absorb any more sealer. Then wipe off excess. Let the counters sit for a few hours before use (best to do this overnight). Test in the morning. If it still takes in water (darkens), repeat sealing a week later. It can take two to three applications for really porous stones. The good news is that this is an incremental process, so each time it will take less and less sealer. After that you basically re-seal as needed. You'll be ok. Don't worry!

Confused 2013-07-26 02:26:00

We just had Black Stellaris in a honed finish installed. The distributor said it should be sealed, but the installer said it should not be sealed because it is honed and will take the sealer unevenly creating "spots". Can you offer any guidance?

Peter 2013-07-30 14:13:00

I recommend this Granite Sealer Product from Mr. Stone.com for sealing countertops. http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Devastated 2013-08-02 03:43:00

I just installed Mont Blanc quartzite in my kitchen. I chose the slabs ( 3) at the quarry and they were all from the same lot. After they were installed, the slab on the island looks perfect, but the perimeter counters are a darker color (greyer rather than off-white backround). They look like they did when I saw them on a rainy day. They told me to wait 48 hours as they had been wet and they will lighten. It is 3 days later and nothing has changed. Is there something they could have done to the perimeter counters that would permanently darken them? (they sealed all the counters on site at the same time)

Peter 2013-08-02 19:12:00

Dear Devastated, Who is they? Did we install these for you? If yes please contact me at [email protected] along with your work order and contact telephone numbers. Best Regards, Peter.

Devastated 2013-08-02 22:33:00

Hi Peter, No you did not do this job for me. I was just asking your advice so I can try to figure out how to proceed. Is it possible that 2 slabs from the lot were darker than the 3rd and I just didn't realize it? I don't think so. Did the fabricator apply something that darkened the stone? But then why only on 2 & not the 3rd? They are telling me that these are the slabs I chose and it is what it is. Do I have any recourse? I would greatly appreciate any advice you could give me. Thanks and all the best.

Tricia 2013-08-04 06:35:00

I just had a granite counter put in my bathroom. My husband laid a towel he believed was clean on it to hold his tools, but it was actually a rag used for furniture polish or stainless steel cleaner. When he removed it, it left a large square which is darker than the rest. I am assuming whatever was on the towel got absorbed into the stone. The granite originally is a beige, brown with gold. I also noticed that in some places the water beads and in others, especially around the faucet get darker and absorb the water. It eventually dries, but this is telling me that the seal is not consistent. How do I get the stain out and then should I use the Zero product to reseal, so that the entire surface will be consistent in its sealant? Thank you so much!!!

Peter 2013-08-05 12:50:00

Devastated, the best thing would be to have pictures of the slabs before and after in order to prove the difference. I am sorry things did not work out for you. Unfortunately there is no way of knowing whether you did not realize the stones were darker and or whether your provider applied something to it to be darker seems unlikely. I would contact management of the company if you are 100% sure it is not the right stone and you could take it up with them. Hope everything works out for you. Best Regards, Peter.

Lost 2013-08-11 01:39:00

We are currently deciding between Zanzibar and Platinum granite for counters. The sales person (not you) is trying to upsell us to the Platinum because the Zanzibar is too susceptible to etching from wine, vinegar, etc? We can't find and specs between the two stones to separate fact from fiction? Additionally we are thinking about White Ice on the island...but now worried about red wine rings, etc. any advice on your sealants for any of these? We've had Baltic Brown for 12 years, unsealed, so all of this "worry" is new to us.

Peter 2013-08-26 19:25:00

http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Peter 2013-08-26 19:34:00

Dear lost, I recommend this sealer here http://www.mrstone.com/granite-sealers/dupont-stonetech-bulletproof-sealer.html

Anne 2013-09-18 22:00:00

I have UbaTuba granite counters and had a party--someone must have left a glass on the counter. Now i have a light colored ring on the counter. it doesn't feel etched so i can't figure out what happened to it. What would you suggest?

Peter 2013-09-26 15:57:00

Anne, please send me a picture to [email protected] that way I can analyze what's going on and figure out the best solution for you.

AC 2013-12-18 19:15:00

Hello, I have Rainforest Green Marble in a smal bathroom on a countertop that has developed white streaks and spots. You can feel a difference in the texture, so something must have etched the surface. What could have caused this and how can I treat it? Is there any way to remove the white? How should I protect the surface from future stains / damage? This is a relatively new problem, as the counters are 8 years old. Any information and advice would be appreciated. Thank you!

Marble.com - Peter 2013-12-19 14:50:00

AC, If you could send over some pictures for me to [email protected] along with the word order # I would be able to assess this for you.

Jale 2013-12-31 23:55:00

I purchased a black granite bathroom countertop. As I was cleaning it with water and a wash rag I noticed that black was showing up on the rag. I wiped the countertop several times and it continued. I polished the countertop with Gel Gloss and it the residue on the rag was really black. What's happening? I also noticed before I cleaned the granite that some areas of the countertop look hazier than other areas. Can you help me?

Marble.com - Peter 2014-01-03 18:37:00

Jale, I'm sorry to hear about your problem, did you purchase the granite from us?

Jim Z 2014-01-19 15:12:00

Quick question. We have Brosse Blue granite with a "leather" finish as we do not like the glossy/polished finish. Because of this type of finish is sealing required because of this type of finish? Happy to use whatever product you recommend

Marble.com - Peter 2014-01-20 14:58:00

Hello Jim Z, We recommend that natural stones are sealed, I would suggest using the Superior Zero Ultimate Stone protector which may be purchased at www.mrstone.com

STONE DOCTOR 2014-05-05 05:04:00

I have a commercial job of installing Beige coloured marble on the floor. The decision I need to take is whether I should use an impregnator on the underbelly as well as the other surfaces. I am installing the Marble with Mortar and using White Cement for buttering. Please help?

TheMarbleMan 2014-05-12 15:11:00

Hi, it's not necessary to use an impregnator on the underbelly since you're using cement. As long as the surface is sealed you'll be fine.

Cub 2014-07-13 18:04:00

My new white Kashmir vanity stains like crazy, even after using 511 impregnating sealer. The sealer eliminated water staining, but I have stains from my soap dish and from an oil-based cosmetic that spilled on the granite. I've only been using it a week and I don't know what to do. My contractor is dumbfounded and I am trying not to panic. I am able to lift the stains with a putty I bought at the tile store, but I can't live with a vanity that stains so easily that you can't even put a soap dish on it. It's a big Bathroom with two large vanities and a granite tub surround. All staining like crazy Any advice?

Marble.com - Jack 2014-07-16 20:42:00

Make sure the stone is cleaned thoroughly prior to applying to the sealer. Some people use acetone to make sure to get all the dirt and oils off of the surface. Our installers use Dupont Bulletproof and Superior Zero sealer; both yield great results. Please let me know how everything goes.

Christy 2014-08-29 13:30:00

Hi, could you please recommend a sealer for my granite countertops that will be installed? The Granite is Ivory Fantasy - and this particular lot has a lot of light color in it - like a cream. There are 2 slabs and they were stored in an outdoor yard. I've visited the slabs several times, and after it rained they were very grey/dark, so I know I'll need to seal them. Also the granite place recommended the 1st two weeks a seal it every other day - although from reading I guess I only need to seal it until a water spot no longer changes the granite to a dark color. They are going to seal it the 1st time, but is it okay for me to follow up with a different brand of sealer after they are done - in particular, whatever brand you recommend?

Concerned in Colorado 2014-09-16 00:11:00

I recently had Ubatuba installed in my kitchen. Lately when I wipe my counter top down I find spots that look like some type of food dripped & dried on the counter top. When I wipe it off, it seems to peel off the counter top and leave a pit in the granite behind. What is happening? Btw we did not get our granite from you.

Ann 2014-12-08 13:16:00

We are building a new house and have installed TYPHOON BOURDOUX (spelling) in the kitchen. What can you tell me about this granite?

Amber 2015-03-25 01:13:00

I just bought a home with marble flooring . Couple questions , floor is in good condition and I was told it was sealed 2 years ago . First , how often should I be resealing polished marble floors? Then can I just clean it and Ali a dealer or do I need to strip, seal, buff, Polish etc? If I can just clean and seal will it still have it shines after or do I need to polish it after sealing ? Thank you

May 2015-04-20 04:12:00

I treated my granite countertops with a sealant and followed directions exact. It has left a sticky gummy film in many places, and in some places rainbow type streaks. I am scared to death I have ruined my granite. What do I do? It is black granite.

Marble.com 2015-04-30 16:22:00

Hopefully you received premium grade granite and not commercial. What are you using to wipe down your counter-tops? Some chemicals are not good for natural stone

Marble.com - Admin 2015-05-15 18:04:00

Reapply and wipe down within a few minutes. Do not let it sit for too long.