Gorilla Waterproof Patch & Seal Rubberized Sealant Spray, Black, 16 Ounce (Pack of 1) - Seals Out Water, Air, and Moisture

My roof was leaking around a vent pipe. I sprayed some of this in a circular motion around the pipe. I applied two coats. It stopped the leak.

0 stars out of 5. Doesn't work I wasted a whole can trying to fix a crack in a water fountain and after 5 thick layers it's still dripping water. Look for another product. I only put 5 stars because Amazon puts the 1stars reviews all the way down.

Review: I recently tried out the Gorilla Waterproof Patch & Seal Rubberized Sealant Spray to patch up some tiny rust holes in my gutters, and here's my balanced take:Pros:Ease of Use: This spray is incredibly easy to apply—no messy brushes or applicators needed. Just shake, spray, and you're done!Versatility: It works on a variety of surfaces, including metal, concrete, wood, and more. Perfect for sealing gaps and cracks in gutters, roofs, and even outdoor gear.Quick Drying: Dries relatively fast, allowing you to move on to the next step of your project without long waits.Self-Leveling: The formula levels itself out, ensuring a smooth, even coat that covers small gaps and cracks effectively.Cons:Multiple Coats Needed: For optimal results, you might need to apply multiple coats, which can be time-consuming.Runny Formula: Some users found the spray to be a bit runny, which can affect its performance on vertical surfaces.Clogging Nozzle: The spray nozzle can clog if not cleaned properly after use, making it less effective over time.Tacky Finish: In some cases, the sealant remained tacky even after drying, which can be inconvenient.Verdict: Overall, the Gorilla Waterproof Patch & Seal Spray is a handy product for quick, reliable fixes around the house. It worked well for patching tiny rust holes in my gutters, sealing them up nicely. Its ease of use and versatility make it a go-to for minor repairs. However, be prepared for potential issues with multiple coats and a runny formula. If you're looking for a straightforward solution for sealing leaks, this might be worth a try, but keep in mind it might not be perfect for every situation.

great stuff - we had a black concrete bird bath that had cracked over the winter. Several coats of this sealed up the bowl of the bird bath perfectly. Tip: use multiple light coats works much better than a single heavy coat. Be patient and the results will be great.

It works great! Super simple even with my arthritis hands. I have trouble with my strength but this isn’t difficult at all. Not only does it seal, it’s also useful for glueing some things. Like my outdoor camera that slipped down and hanging by the wires.Durability is great, light smell not bad, and I’m able to use for several projects. All of my needs are kind of small projects but definitely needed attention.Of course we all wish it was a larger can, but this one is coveting all my needs at the moment.Will upload video of the projects today, provided no rainfall 7/18/25

Ordered these to re-paint my metal gutter. Prepped the old gutters and started painting. Now, I know most spray paints can run and drip if you go with too strong of a spray, I usually take it easy and do multiple coats with light, broad strokes to eventually get good cover. However, it was very hard to control the spray with these cans. No matter how controlled I tried to be, the paint would still leave runs and drips.In addition, the nozzle started to clog when I was only about 1/2 way through the can, which meant when I tried to do a controlled spray, instead of spraying, it would start dripping from the nozzle onto my hands, my ladder, and the ground. If I tried to gradually increase the spray, it would suddenly spurt in a strong stream that would overshoot the gutters onto the roof.On a positive note, in my testing, the paint does truly seem to be waterproof and performed well in that respect.Bottom line: waterproofing works, but seems that it would work better on horizontal surfaces; vertical surfaces are too suspect to runs and drips.

I've used this product before & it works as good as any out there. This is for wrapping my bull horns on my Tacoma with rope.

Update 9/18/25 I contacted Gorilla and they responded quickly. However, they said this product doesn't work in submerged water conditions. I shouldn't have trusted my Google search for How to seal a concrete birdbath. Now I have to scrape it off, clean with a solvent and find an alternative sealer. So, don't use for a birdbath sealer.I used this to seal a new concrete birdbath. I followed the directions online and on the can. After one summer of using the birdbath, it started turning white. Then is started peeling off. It's still stuck on most of the bowl. I don't know what to do now. Disappointed!!