Waterproof Sealant Black Waterproof Coating 1 Gallon Leak Repair Coating for Flat, Metal, Roofs, Foundations, Gutters, Indoor & Outdoor Walls, Bathroom, Kitchen, Garden Leak Liquid Sealant

This waterproof sealant works incredibly well and delivers fast, long-lasting results. The thick black coating spreads smoothly and creates a strong, flexible seal on roofs, gutters, walls, and even bathroom areas. It dries quickly and holds up perfectly against water and weather. A great all-purpose leak repair solution—highly effective and easy to use!

I bought this black waterproof sealant to fix some leaks on my roof, and I’m very satisfied. It’s easy to apply, sticks well to different surfaces like metal, concrete, and walls, and really keeps water out. I also used it on gutters and around the bathroom, and so far there have been no leaks. It dries quickly, and the black finish looks very even. Highly recommended for home repairs.

Grateful for small tub. I painted the inside of a wooden planter to make it waterproof. Worked great.

Not super impressed. Does repel water but also dries out wood. Fades quickly and has whitish finish. Also tends to remove any paint already applied. Won’t use again.

Lid is unbelievably hard to open. Inside is a watery fluid. Expect to go everywhere. Well, rain still comes right through. Too thin. First batch I bought had mnuch more body. And it sealed out the water in that area.

Great

I used this to seal the edge of a truck storage box. It was easy to put on and the edge strips are a nice addition and help a lot. The included brush however is a piece of crap. Buy a better brush. If the product fails within a year I will update.

Seems to work well at sealing out moisture. Be aware this formulation is very thin/consistency of water.