Liquid Rubber Waterproof Sealant - Roof & Gutter Coating, Black, 1 Quart

I had a fountain that leaked through some cracks. I tried the brand or sealant advertised on TV, you know, the bias with sealed screen door in the bottom. Seven coats, it never really sealed and lasted about 6 months. 3 coats of this stuff and a year and a half later, it’s sealed up tight. I really like this stuff. I wonder how it works as underbody protection on a car…..

One of the best waterproof gel which is best for sunroof

Easier to open and seems to spread fine and seal. Only complaint, it's listed as black but looks dark brown. Last gorilla seal I got was half solidified. Flexseal prices keep creeping up.

Worked great for a rainwater leak between the neghibors cement wall and the new aluminum flashing I installed over the new framing of our basement Bilco doors. Taking advantage of a recent heat wave, in addition to heating up the liquid rubber container in some warm water prior to pouring really helped get the product thin enough to run down into some very tight spots. Wife and I used a large plastic medical syringe along with some 5/16" OD polyurethane tube that screwed perfectly into the Luer-Lock end of the syringe to inject the rubber into the problem areas. It was well worth the price, for our application, IMO.

I used a foam brush to apply this to a water fountain container. Applied a second coat the next day. It’s been on for a couple months now and shows no sign of releasing from its base. I also used it to coat an overflow drip pan on my central ac unit. Here too adhesion was great and now my galvanized drip pan is protected from corrosion. I was impressed with the coverage from the container. Still have about 1/3 container for my next waterproofing project.

A little nervous about this product I haven't got a heavy rain yet since I've used it but it doesn't seem to dry being sticky it's very stretchy which maybe that's a good thing I don't know 😕 I've put four coats of it down hope it works.. Also I've used Aims block and wall about 4 years ago and it when it dries it's pretty hard I did four coats of that and it's been holding the water back so I know that works. I got a picture of both on stir sticks in my review here..

Worked great to repair a rain barrel an put in gutter joints

This product failed after 3 years on the roof, and 4 years on the base perimeter of a quonset hut. All work was done with consultation with the company's tech department and the fabric tape was used over all joints. The perimeter leaked immediately during the first precipitation, and Henry's Wet Patch was applied over it, which lessened the leaks but did not stop them. I would never use this product again.

Excellent done the job perfectly

This product is made in Canada so it was a no brainer for me to purchase it. I used it in my shed the ceiling was leaking after a rainfall. The application was so easy. No difficultly applying the coat on the ceiling .. No dripping. The product dried in a very short time. I checked just how good this product is after the last rain full. My shed was bone dry I would highly recommend using this Canadian made product

Used this around my garage around the bottom edge where the cement fillets are as I was getting water come through when it rained heavy. Brilliant stuff, just paint it on use an brush but it does come off with white spirit.

Excellent item. Bought it to waterproof the base of rabbits hutch. Done the trick nicely. Incredibly sticky though so had to throw away paintbrush afterwards unfortunately

Brilliant stuff stopped my leak.after 1 coat. Ihave used 2 coats and highly delighted