










🛡️ Seal your space like a pro—because your surfaces deserve the best!
Miracle Sealants 511 Porous Plus is a premium penetrating sealer designed for porous stone, tile, and grout. It forms an invisible, UV-transparent barrier that resists water, oil, stains, and slips, covering up to 4,000 square feet per gallon. Safe for indoor and outdoor use, it preserves the natural look of surfaces without yellowing, making it ideal for both residential and commercial applications.















| ASIN | B000VX5FVK |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #17,427 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #48 in Hardware Sealers |
| Brand | Miracle Sealants |
| Color | Yellow |
| Coverage | Up to 4,000 square feet per gallon |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,281) |
| Date First Available | January 28, 2016 |
| Included Components | 511 Porous Plus Sealer |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 7.12 pounds |
| Item dimensions L x W x H | 4.25 x 7 x 11.5 inches |
| Item model number | PLUSGAL4 |
| Manufacturer | Rust-Oleum |
| Material | Polyurethane |
| Number of Items | 1 |
| Part Number | PLUSGAL4 |
| Product Dimensions | 4.25 x 7 x 11.5 inches |
| Size | Gallon |
| Special Features | Stain Resistant, Washable |
| Style | Sealer |
| Surface Recommendation | Tile |
| Thickness | 1 Inches |
| UPC | 753927511271 |
| Unit Count | 128.0 Fluid Ounces |
| Usage | Interior/Exterior |
| Water Resistance Level | Water Resistant |
V**Y
Excellent product
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.
E**N
Sealed natural stone. Water beads up now.
We have soft natural stone in our shower, and this product creates a great water seal. We tried other products and they did not last long. Three coats of this and water naturally beads on the surface. Easy to apply. After six months the stone does not absorb water. Excellent.
C**E
Works on Kashmir White granite
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.
M**E
Perfect for slates but doesn't work for encaustic cement tiles
We needed a sealer that would work for slates we'd chosen for the floor and for some encaustic cement tiles we'd bought from cementtileshop.com. They recommended Porous Plus on their website so we optimistically ordered a lot of it. On the plus side, I was thrilled with how it did the slates. It leaves a very natural look to the stone, is really easy to apply and resisted olive oil left on a sealed slate for a whole night. This is a basic requirement for stone in a kitchen. Encaustic cement tiles are very porous and the sealer just kept soaking in with each application. We spoke with a rep from Miracle Sealants who said we might need 4 coats. We tried that and even after giving it plenty of time to cure, oil would still stain the tiles even after a few minutes. We tried the regular miracle 511 and that didn't work for us either. The problem with these sealers is that the cost of experimenting is very high! We were lucky though in that we found "Buddy Rhodes Natural Look Penetrating Sealer" which is a water-based sealer that did a much better job with just 2 coats. Following that up with "Buddy Rhodes Beeswax" and finally our encaustic tile resisted olive oil for a whole night.
A**A
Great result after application. Says 20 year life, we'll see!
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).
B**O
I have natural stone tiles on my kitchen wall, behind the stove as a backslash as well. The contractor was just not professional enough to know that this was supposed to be treated with sealant to prevent the oil and other stains being sucked up by the stone what ended up on the wall while cooking. I have not spilled anything directly on it but it is normal when food is boiling on the stove to have humidity and stuff evaporate... A have suffered removing the residue. Didn't dare to cook again and ruin the wall again. After I have treated the tiles with this product nothing sticks in/on the tiles any more. I can truly recommend. Would do the job with paint and kitchen counter as well. However it made the color slightly darker, which I do not mind. Its nice and even.
A**D
Muy poderoso , concentrado rinde mucho !
Z**Z
Excelente producto para sellador
C**E
Good product although expensive
C**S
it does what it says
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