5.0 out of 5 stars Does the job.

J. · December 25, 2022

This product does what it supposed to do and seals the counters thoroughly. I was able to roll out enriched dough and laminate croissant dough without any grease stains on the white stone.When doing a small counter top it is easy. Clean up is quick, and maintaining a wet surface is no problem. Larger countertops are more of a challenge. Because it is water based it is very runny. Masking off walls with tape helped keep it from the walls, but use good tape or it can soak through and create tape removal issues. The biggest problem with large countertops is the final clean up. Because this is a resin it can leave streaks. You must use microfiber cloths to wipe up the excess after treatment. Leaving a thin layer behind is the biggest issue with large countertops, as they start curing so quickly it is impossible to get a second pass that's not sticky. The best thing I found was to have multiple cloths at the ready and work quickly.

5.0 out of 5 stars Seems to Work Just Fine

B.L. · April 17, 2024

I mean, I’m not going to deliberately spill something on the finished surface to see how well it works, now am I? I used this to seal a hearthstone (not a countertop). I picked it after reading a lot of reviews of sealers on Bolo. I followed the directions and made sure that it stayed wet for 10-15 minutes, to allow the sealer to soak in. After reading all the reviews, I was worried about the blemishes and cloudiness that some reviewers wrote about - but I saw nothing of the kind. At the end of the application time, I wiped it down with freshly laundered white sackcloth towels. It dried evenly, and looks good - not shiny (we definitely didn’t want glossy). Before using it on the hearthstone, I “experimented” by applying it to a small section of a marble table top (I flipped the top over and applied it to the underside) and also to an inconspicuous area on the side of the hearthstone, to see how it flowed during application, and to see if there would be any change to the color of the stone once the sealer dried (answer is “none”). That helped me be more confident when it came time to brushing the sealer on the top, wide area of the expensive, extremely heavy and hard to replace hearthstone. While I expect someday some with a glass of red wine is going to trip and spill it on the hearthstone, I’m not going to tempt fate and deliberately spill something on it, so I can’t actually say anything about that. Also just FYI, the directions for the product say to re-apply it in something like 3 -5 years. Not sure I’m going to remember to do that. Finally - it had virtually no smell at all, so that was a big plus.

4.0 out of 5 stars One of the best I've tried

m. · April 4, 2016

One of the best you can use. One star deducted because it needs to be reapplied fairly often and it's really not "bulletproof" I had used this product for years on my Cashmere Ivory countertops and because of what I just mentioned I thought I'd try Sen-guard. That was awful and it soaked up water more than it did before I put it on. There was zero protection at least on this type of white absorbent stone from that. Then I tried professionally applied Granite Shield and got the same result as the Sen-guard. That cost hundreds but I got my money back and was told they never seen that happen before. I am now back to this Dupont Stonetech Professional BullietProof Sealer. It seems to work best and I use it around every 3 months now, especially around the sink area.It is so difficult to find a reliable stone protector. As a previous kitchen designer, I know that many stones (especially the darker denser ones) are already pretty resistant to stains and people get sold these sealers more than they need. They then think it's the sealer that is wonderful when really oftentimes it's just the stone and polishing done in the factory. To be safe, I'd still recommend a sealer. In my case, I should have trusted my training and instincts and not installed such a light absorbent granite. I knew better but I thought I'd just be careful. It was such a pretty slab, with pale sage green medallions throughout and the price was fantastic. Thing is, there is no amount of "careful" that can prevent water constantly being splashed around the sink and that water generally contains soap and food. It can start being absorbed before you're even done filling the dishwasher. That will eventually find its way into the stone making it darker than the rest of the kitchen by comparison. It also stays wet longer because it immediately starts to absorb, leaving you to believe that is only water it is and will dry back to the original light color. The good thing about natural granite is you can usually get the stains out with a poultice but what a big, time-consuming chore it is and mess you have to live with if it's more than just a small area. Bottom line is I recommend this product over several others I've tried but any water still needs to be wiped away immediately even though it's sealed.

5.0 out of 5 stars Good Stuff

R.P. · June 18, 2015

Treated my two bath sinks and kitchen counters, all granite. Easy to apply, piece of cake. Use flood coat technique. Just keep the counter wet for 20 minutes (I went a half hour) using a cheap, small paint pad. Every time you see a spot dry, whip the pad over it, that's all. As time passes the counter will tend to stay wet, that means the the granite has absorbed all it can (which is what you want). Then wipe dry with paper towels. Done.No stink, no nasty solvent smells, but I kept the exhaust fans running.So far so good; actually, I can't tell it's on there, totally clear, does not change the patina of the counter color (which is good).[UPDATE]: December 2015: water still beads up on the counters, no stains, great shine. I think that the folks having problems are not following proper procedure; just do what I did and you will have good results on granite (I can't verify other types of materials).[UPDATE]: February 2018: water still beads up, there is still no staining of any kind on the counters/sinks. I use a little Windex once weekly to clean, and the shine comes up like they were new. I think this summer I will give it another quick coat, just for normal maintenance.Probably no one will read this because my first post is old, but thought I would post anyway :)

Work well and good sealing product

P. · September 30, 2024

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Worked on a polished marble surface

C.D. · March 21, 2023

The media could not be loaded. I bought a marble table and it was getting etched with lemon juice and red wine. I decided to try this bullet proof sealer and not only did it hide the previous etched flaws, but it appears to have given it a nice protected shiny coat. At first it didn’t look like it was going to take as I already had a shiny coat on top, however, as that was getting etched, I wanted to try anyway. You do need to keep it wet and follow the directions very closely. I did two coats within a half an hour of each other and then let it set for 72 hours. I’m very pleased. I also tried it on my Marble Floor, I only did a few tiles in case it was slippery. It didn’t appear to give them any shine, which I was hoping it would, but it also didn’t appear to make them slippery, bonus.

Easy but tricky to apply - marble looks good

G.S. · July 19, 2023

After purchasing a polished marble table, I wanted to make sure it's sealed for the most protection as it's not a practical material at all. Don't ask me why I bought marble if it's not practical, that,s another debate!As far as the product goes, it's one of the more expensive ones when I searched for one, but the reviews kept coming back as it being a solid product. My biggest fear was discoloration/stains, so I decided to accept paying more for this product and give it a try.In a few words, it works and there are zero stains on my marble top table. This being said, FOLLOW THE INSTRUCTIONS CAREFULLY!For me the trickiest was the step where it says to keep the surface wet during the 10-15 minutes application, do not let the sealant dry before it reaches 10-15 minutes. What this means: you apply a first layer of sealant on the table... the table begins to absorb the sealant and the sealant dries in other areas. When you see this, reapply more generously and evenly. So basically, every minute or so you're reassessing and reapplying sealant, over and over and over, perhaps my table marble is very porous but that may be normal in my case. This is also mentioned in the same instructions, depending on how porous the stone is, you will have to apply more or less sealant, so like I said, Follow the instructions.At the end, I redid 3 layers of sealant application, and in the picture what I have there is the product cured for 24 hours. I can confidently say there are zero stains/discoloration. Am I ready to spill some coffee and orange juice and test it out? I'm not sure I'm that confident, but at least I know the sealant is applied the the polished marble is still shiny.

Bon produit

a.l. · July 5, 2024

C'est ce qu'on avait reçu avec la livraison de notre comptoir. On aime le produit

Good sealer

A.C. · April 3, 2021

Easy to apply. Follow the instructions, prep everything you need and application will go smoothly. Need some elbow grease!