Gorilla Patch & Seal Liquid Rubber Waterproof Sealant, White, 32 Ounce (Pack of 1) - Seals Out Water, Air, and Moisture

Very good rubber coating, great value, used on underside of enclosed trailer, very good adhesion from rolling on, very thick after 2 coats

It did a great job overall and better than expected

Love the easy application. this worked great at keeping out moisture that was coming in through our exterior wall that is also a SEA WALL!. Don't ask... building codes in the middle of the pacific, not so much! We needed to keep water from intruding and the walls we treated with this product have faired very well. It has made a huge difference for us. our place always felt so wet and sticky and this has helped keep the moisture out.

This is definitely a great product for weatherproofing and sealing almost any surface! Ready to use right off the can: just pour or apply with a brush and it dries into a clear hard (a little rubbery) finish in about one hour. It can even be applied in moist surfaces as it displaces water drops while being applied. However dry clean surfaces have a better finish result.The downside is that the contents start to solidify as soon as it comes in contact with air. Meaning, once you open that can some of the product will turn into a trasnparent gel. This will result in some product loss even if you try to seal tightly.Overall, I highly recommend this for quick, easy and effective waterproofing.

We have tiles around our swimming pool with grout. After the blistering Texas heat some grout has fine cracks. We thought it would be a good idea to seal it up before the torrential rain.Few tips:1. Use a paint brush that you are willing to throw away, you cannot wash and reuse the paint brush.2. You must finish your entire project in one go. The sealant thickens and dries.3. Also, the lid may not close all the way back again, as the sealant thickens.4. If you must stop half way, or for lunch etc, place it in a plastic bag and get as much air out such that you slow the drying time.5. Oddly, does dry slowly on the grout itself. If it’s an outdoor project, and rain in the forecast the next day, then wait until you have 2 rain free days.6. Wear disposable gloves. People - don’t ignore this tip. I almost stuck my fingers together, but Thankfully I was quick enough to scrape it off. Washing with water didn’t help at all, remember it is water proof.7. Bugs may stick. Kinda gross, but next morning i stepped out to marvel at all hard work, only to notice a hundred beetles, critters, dragonflies, etc stuck. Spent a couple of hours removing them. It’s Texas y’all!8. Dries clear. Yay!9. Has a mild shine during daylight. I don’t mind that though, but if you find matte tiles and a mild shine in the grout not your vibe - then just know.10. Toss all remaining/leftover solution. Really don’t want to risk sticking to random things in the garage.

Very thin stuff, kinda whimper. Maybe it works for some applications, im not sure. Doesn't seem to really adhere all that well...but I just used it on some pvc pipes. Can had a large dent in it and the can appears to be made out of very cheap metal so if you attempt to put lid on to keep fresh , it just even stand up to some normal taps with hammer to reseal lid , like what's everyone does with a paint can.

We had a leaking outdoor fountain and we tried multiple solutions to try and get it to stop, but nothing worked. This was a very heavy base that the tall fountain sat in and it was leaking from a bottom corner. We tried water proof tape…so much for that….and we tried caulking but that didn’t work either. Finally, I purchased this Gorilla liquid and we poured half of the can in and filled the base up about 1/6 of the way up and let it dry for 4 days. Finally it was firm and the moment of truth had arrived…we set it all up, turned it on and waited. Finally the fountain worked and it didn’t leak anymore. That Gorilla stuff really works…..I can highly recommend it.

Do not purchase from Amazon. I'm sure this product is great but purchased TWICE from amazon and both times arrived dented, not able to close and with paint dry on the inside. It is sticky and messy so I went with the spray one and it does NOT seal the same finish. The spray is matte while the can is shiny and slippery. I recommend getting this in person. Have no doubt it would be actually good.