Liquid Rubber Waterproof Sealant - 3X Stronger - Black 35oz - Professional Grade Roof & Concrete Coating, Indoor/Outdoor Leak Repair, Crack Filler, Weather-Resistant Protection

Really amazing stuff just wish it was more than just one size. Stopped water getting into my bathroom when it was raining.

Goes on smoothly and sealed up the cracks on the basement walls without trouble. It’s been holding strong after rain.

but it does a pretty good job on the old yellow rain slicker. Just be careful not to sit on anything until it’s dry. I was unsuccessful at getting it off my car seat.

If all steps of followed, went on slick and easy so far looking good big rain storm today no leaks

This stuff is not elastomeric at all. In fact it is thinner than cheap white latex paint. I was expecting a thicker elastomeric coating. I'm using this on large hummingbird feeders. Over time, the plastic feeders crack because of UV exposure. I then repair with epoxy, then normally coat with a flex seal or gorilla liquid rubber sealant. Have also used both on lining gutter connections when they leak. My problem is when I seal the cans of flex seal / gorilla, the cans eventually bend, and the lid won't seal. So half the product becomes hard. Quite frankly I bought this because it looked liked it had a screw on top vs. a metal can with a lid. I've put on 8 coats, wasted 8 brushes and it is still not as thick as 1 coat of flex seal / gorilla. Don't waste your money. You are better off buying a gallon of cheap latex paint - and it has better coverage. This stuff is worthless.

My old family house suffered from severe wall leaks, with mold growing in the corners. This liquid rubber sealant was a revelation! The 35oz container allowed me to spread it smoothly with a trowel. Once dried, the black rubber layer is incredibly stretchy—I pulled it hard with my fingers, and it didn't tear. After several heavy rains, no more leaks! I even fixed window gaps with it. Great value for money!

I expected a thick rubber consistency. Instead it was very thin and runny. It takes a long time between applications. Maybe it will work better for you.

My dad struggled with a leaky garage floor, so I got him this sealant. He was amazed at how simple it was—just pour, spread, and let it dry. The black finish blends seamlessly, hiding all the cracks. It withstands extreme sun and rain without cracking. Now he uses it for everything from patching planters to sealing pipes. He says it's the most useful item in his toolbox!