Red Devil 0909 Spray Foam, Fill Large Gaps & Cracks Expanding Insulation Polyurethane Foam Sealant, 12 Oz, Off White

I love this stuff. It will expand a decent size — I used it to cover some cracks between my gutter and my shed (didn’t want leaking), and it’s holding up fine. It does looks like creamed butter when it comes out but it sorta turns blueberry muffin yellow after a while. This didn’t bother me but if you’re looking for something that stays light-colored, this isn’t it. If you put it on metal, you can pretty much pry it off with a screw driver — I’ve done this before, as I had used it to cover some screw holes in my metal carport roof. I didn’t like how it ended up looking on that project — I sprayed too much and it was like a tennis ball over the screw… but I WAS able to use a razor blade to cut out the section I wanted to stay on the screws and remove the rest with the blade so now it looks less jinky. It’s easy to use — it’s also easy to over spray. I bet if you wanted you could put some painters tape down for a better more controlled outcome…but, I did not think of that ahead of time and it may not even work THAT well, since it puffs out as much as it’s going to puff. It kinda looks like merengue…but yeah, it worked for my house hold leak(s) pretty well so far. I don’t know if it matters but I live in Los Angeles where it’s mostly warm and sunny so…it *might* not be as successful for you if you’re in a REALLY wet or cold environment. I’d buy it again.

Works great and it's a little cheaper than other products that do the same thing. Just remember once you use it one time it won't work anymore and so make sure to fill in any cracks or areas that need it the first time around.

Spray and also worked for about 3 seconds and that was it I had to throw the entire can out. The worst spray product I've ever used.

This worked well for sealing up a hole outside my house.

Works as expected, fair price compared to hardware store.

Gets the job done. Seals around piping.

It is less expensive than great stuff, but it also does not expand as much so you need more of it. Be aware you must dispense with can upside down.