Miracle Sealants 511 Porous Plus Premium Penetrating Sealer for Countertops, Stone & Tile, Gallon

My wife forced me to install unfilled travertine in our tub/shower walls and after grouting the tile and holes I sealed with this stuff. 2 coats. Grout and tiles darken but when the sealant dries/cures the grout color returns. Maybe overall a bit darker than before sealing but looks better, without looking rich like some sealers that "enhance" the tile and grout for that always wet look. I'll have to seal every 6 months or sooner but that's because of the tile choice we made. Good product.

Excellent sealer for mosaic stone tiles prior to installation. Very easy to apply.

This will seal Kashmir White Granite when nothing else will. I’ve tried a number of “good” sealants on our bathroom counters, yet the counters continued to stain with anything that wasn’t pure water hitting them. I was almost to the point of pulling the counters in favor of quartz, but searched many stone forums and read reviews here on this product. Other reviewers here proclaimed success and their pictures showed they had this particular stone too. So I decided one last try was in order. I bought a stone poultice and went to the lengthy trouble of removing all the soap and lotion stains first (after using denatured alcohol to remove previous sealers), then treated the granite THREE times with this 511 Porous Plus sealer. It took three tries to get water to bead up. It was the first time water had ever beaded up on that stone! I poured some in a plastic cup and brushed it on with an old paint brush, waited the recommended time (maybe a little more), wiped up the excess with paper towels, and buffed dry with an old washcloth. As another reviewer mentioned, the sealer does bring out pale mica flecks inherent to this stone. 511 PP seems to not only soak into the stone, but also leaves a clear barrier on top. To my eyes this gives the stone more dimension, sort of like what happens when you put a worn stone into water to bring out its beauty. Use this one, not the regular 511 sealer available in your local big box hardware store. Anyway, it’s been a year since this adventure and I’m back buying another bottle to retreat my counters. This will be a yearly to-do in this house. The water is still beading up in most places, but there’s no way I want to go through the hassle of my initial poultice procedure. We were out of that bathroom for a couple weeks while that was going on. BTW, if you have a granite choice, NEVER choose this particular granite. It’s basically super-compressed limestone and as naturally porous as your concrete garage floor. Evidently with granite, the darker the better for resistance to staining.

This works very well and a little goes a long way! It was able to seal and protect the travertine around my pool. Perhaps the only thing keeping me from rating it 5 stars is that it seems pricey for the size and does not include any type of applicator.

I'm not going to lie, this product definitely smells like it is giving you cancer, but wear a bandana, open all the windows, and do as your told. Follow the directions on the product, and you'll be just fine. I'm no pro, and I wanted a lot more context before I got started, so I youtube'd a few tutorials for tips and considerations before I got started. Let me sum up what I learned from the process here: 0. Open windows! Turn on fans! Wear gloves, safety glasses, and a bandana. Don't be a dim wit and just take in those chemicals like they're nothing. It's awful stuff. 1. Make sure the surface is clean to start. Vaccuum, wipe down with a clean rag, brush or other, and make sure there's no leftover grout residue dried on the stone. 2. Apply before or after grout. I was mortified to find advise online that you should only use sealer before grout. Not so! I consulted my tiler, and went ahead, and my job turned out fine. The tiler used an epoxy grout that doesn't require grout sealant, and maybe that's more resistant to discoloration or whatever the concern might be for not sealing post-grout. 3. Just make sure to TEST the sealant on your tile and/or grout first, per application instructions, to ensure you want to use this product on your surface. There may be some color shift, darkening or other depending on the material, and you just don't know, so TEST. 4. Because you need to wipe up 3-5 minutes after applying, I took small square sections at a time that I knew I could cover consistently within that time frame. I set the clock after one section, moved onto the next, and when the timer went off, I reset it for the new section I'd just finished, backtracked to the previous section to wipe up, and repeated that process until I finished the first coat. 5. After 1-3 hours, repeat step 4 for a second coat. It was an entire evening's worth of work, but the result is awesome. I have a white marble backsplash that I hadn't sealed for the first few months after my kitchen remodel, and I was constantly nervous about staining it. Now I'm worry free! No filmy residue, just my beautiful, stain resistant tile. 6. Finally, throw out any rags you use after the fact. The packaging suggests washing brushes with mineral spirits when done. Double scrub your countertops and anything you touched with the stuff after the fact (except of course your tile surface).

Purchased other sealers from other sellers, and they did not work on my sandstone table tops that I make and sell to furniture stores. This sealer works, only need 2 coats.

I would not recommend this product as your only sealer for concrete counters. While it passes the "drop" test in that cold water does pool up rather than soaking in, it doesn't do much to protect from other things like acids, oils, and heat, all of which are common in the kitchen. Since sealing my counters with this product about a month ago, I have oil stains, acids like lemon juice leave the surface feeling pretty rough, and putting a hot pan on the counter left a rough ring in the shape of a pan. Even a french press full of hot coffee left a noticeable ring on the counter. Perhaps this is a problem with concrete in general and not just the sealer... Hard to say.

2/2022: my shower and bathroom are still well sealed. I still haven't gotten around to the kitchen grout yet but I will definitely be using this product. The water still beads up on the bathroom grouts. 2019: I bought a pint to use for my shower tile, floor in the bathroom, and my kitchen backsplash and window sills. I finally got around to the shower yesterday. I used a foam craft brush to apply to sealant. I don't recommend that form of application because it caused a lot of foaming. However, since I didn't have anything else to use I continued with it. I applied the sealant as per the directions. Let it sit about 3 - 5 minutes and wiped it off the tiles. I only needed to seal the grout as the tiles didn't need to be sealed. After I sealed the grout in the walls I sealed the floor grout. I have a pebbled floor and again, just needed to seal the grout. After I completed the floor and wiped up the excess I waited about 2 hours and repeated the process. The smell didn't bother me until I sat in the living room after completing the task. I got a sore throat and my nose became plugged. I closed the bathroom door and lit a candle in the living room. That took away the odor. This morning I couldn't smell it at all. I dripped a little water on the shower floor and wall and it beaded up perfectly. I had to order a quart more so I can do the remaining grout areas. As soon as it arrives I'll finish the bathroom floor, kitchen backsplash and window sills. Ok, it's been five days since I sealed my shower and I STRONGLY RECOMMEND TO WEAR A MASK. I have had a sore throat and nasal passages since about 6 hours after using the product. Now, that's completely my fault because I read the directions and they clearly say to wear a mask and open windows and doors and use the fan if you have one. I sealed the bathroom floor grout yesterday. I really like how the water beads up now! Next will be the kitchen grout! I highly recommend this product. Other than needing a face mask and opening windows and turning on the fan, it's a wonderful product.