Gorilla Waterproof Patch & Seal Liquid Rubber, Black Sealant, 32 Ounce

So far I love this product. I have not had it long enough to determine the durability. It takes a long time to dry but that is to be expected with a material so this viscus.

Great product seals up nicely!!

useful product

I used this to seal the bowl of a large cast iron fountain. It worked great and helped extended the life of the fountain.

My chimney cap was bowed in and held water. When installed, they had an unknown sealant. The gorilla bonded nicely with the old sealant and the galvanized metal. I had to do numerous pours to fill in the dip 1/4” per pour. Noticed that the product shrinks when it dries. Since the product is not waterproof, I decided to finish with a waterproof coating. The cap will still hold a little water, but so do flat roofs.

Thick on top had to cut through 1/4 inch of solid material to reach product

Purchased this seal tape over the Flex Seal brand, because I assumed it would be better. I am trying to stop a leak in an inflatable hot tub, the leak is from a a single cat claw hole on the top, not underneath the water line. The gorilla tape seems to be hard to stick to the surface, I even used rubbing alcohol to prep the area before applying the tape. Once the tape it only last 12 to 24 hours before peeling off and leaking. Waste of money.

Wasn't what expected return

the can i got when opened was half hard. will not recommend

Used to fix small leak in pool liner. Followed all directions, even applied dry, and the tape has peeled up after the pool was filled. Very disappointed in the “permanent” bond that is advertised.