Miracle Sealants 511 Impregnator Advanced Penetrating Sealer for Countertops, Stone, Tile & Grout, Gallon

My project: Clean and seal a basement floor after the cats had decided the didn't want to use their litter pan.How much did I need? Approx two quarts for two coats over approx 700 square feet. In other words, 700 sq. ft. per quart.Does it work? Yes, so far. Water beads up beautifully on both the tile and grout that have been treated. It's only been a month so far.How easy was it? Application was easy, but not the cleaning. This is a penetrating sealer, so any stain you leave on the tile or grout will be permanently sealed in. I cleaned the floor by:1. Spot-cleaning the worst spots (cat pee, yuck)2. Scrubbing the entire floor by hand with a stiff brush3. Used a copper wire brush to scrub off the top layer of the dirtiest grout4. Wiped off excess soap5. Mopped twice to ensure no soap residue that might interfere with adherence of the sealantOverkill? Maybe, but I wanted to do this right the first time.For 700 sq. ft., It probably took me 20-ish hours to clean, and only 5-10 to apply two coats. Cleaning was the vast majority of the work.The application process: Easy, but a bit tediousI have 12x12 tiles with approx. 1/4 inch grout. That's about 1,500 linear feet of grout (my best guess). Used a small children's paintbrush and carefully painted over all the grout. After each application, waited 5-8 minutes before wiping off. My tiles are completely matte limestone, and so easily soaked in any excess sealant left on the surface. I just had to buff the excess into the face of the tile, and it would soak in nicely. If I had glass or other glossy tiles, I might have had to wipe off 100% of the excess, which would be much more difficult.The Result: Dry to the touch in hours, started walking on it in a few days.Water beads up fantastically and wiping up is easy. The tiles have a *slightly* but barely noticeable increase in the glossy finish after having dried for a few days. The cats haven't peed on it yet, so I don't know how well it will truly work.Recommendations:1. Ignore the square footage guidelines. What matters is how much *grout* you have, not how much *floor* you have. 2-inch tiles with 1/4 inch grout will need a massive amount of sealant. I had 12-inch tiles so didn't need as much. Make your best estimate and then test before buying what you think might be the right amount.2. Test a small section first to see how much you need. My tiles and grout were very "thirsty" and soaked it all up easily. I put two coats everywhere, and a third coat on the most heavily trafficked section. Test your tiles first.3. Use disposable equipment. Latex exam gloves, a plastic cup, cut-up T-shirts and a child's paintbrush were all the supplies I needed. This stuff needs mineral spirits to clean up, which is a major hassle. Disposable = no cleanup.4. Knee pads! You will be kneeling on a stone floor for hours.Good luck.

Works great. Goes far for a small amount. I used it for travertine tiles

This sealer is easy to use and does a great job. We purchased a pint for a 65 sq ft backsplash and a 20 sq ft. shower floor. When I saw the bottle I thought we'd need more for sure, but a little goes a long way! I would say we used a 1/4 cup to seal the 20 sq. ft. shower floor. It was easy to apply, wait and wipe off the excess.I gave it 4 stars as it has a very strong smell. We have pets and kids so we applied it at bedtime when everyone would be in their rooms. Closed all the doors and opened the window in the bathroom overnight. We haven't applied it to the backsplash yet, as that is a bigger job we will have to plan for.As for price - I think it's a fair price for a good quality sealant. A pint might seem small but it will cover a lot. If I bought the next size up it would be a waste of product and money.Updated March 12,2023 - we sealed the kitchen backsplash, 65 square. ft. of dolomite marble and it looks great. It was quick and easy to do ourselves. After both projects there is more than 1/3 of the bottle left. Using the sealer in in big open space we didn’t have the same issue with a strong smell - it was totally fine and didn’t bother us, the kids or our pets at all.

We did a lot of research before trying this. To sum it up this will darken the grout. It doesn't change the color much but it does change it a little bit. In our case it made it look nicer. More coats will darken it even more. Although you probably don't need more than about 1-2 coats. Since it doesn't repel water it actually will allow the grout to change color when it is wet but then the water will quickly dry. When without the sealer the grout will change color when wet and stay wet a lot longer. It doesn't change the look of the tile. Use an applicator that is designed for this. A little bottle can do a LOT of flooring. I didn't even wait 12 hours and was walking all over it. It didn't hurt it but I have heard that it can be a problem. For me it wasn't. If you have to walk on it don't use shoes. Just wear socks. It should be fine. It is dry to the touch in less than an hour. The fumes were not really that bad but I had opened all of my windows and had fans running. It is the worst when it is drying. Once it is dry it doesn't smell. Obviously this is not something you want to get in your eyes or mouth. It is very runny like water and does go a long way. All you do is put it down with the applicator and wait about 5 or so minutes. Don't let it dry. Wipe if off with some towels. It doesn't hurt the towel but I washed them by themselves in the laundry just to be sure. Came out clean. Used hot water. Overall it's a pretty simple process once you know what this stuff will do. Do not expect it to repel water. That simply isn't what this does. It hardens the grout so that nothing can be absorbed into the grout but it does not form a coating over the grout. So it does not appear waterproof and is not waterproofing the floor. Only preventing stains from happening.

The man that fixed my grout told me about this. It works well. A bit smelly but it goes away in a few hours.

I bought this after seeing a ton of 5 star reviews but this is a meh for me. I applied this product to my kitchen backwash grout lines, and I re-applied it SEVERAL times after each application, with a 2-3 week interval, and in every re-application, the chemical gets absorbed into the grout line as if there hasn't been any prior applications. This should make grout lines hydrophobic but it's not acting that way. AND it contains a certain chemical that makes me difficult breathing.