Red Devil 0912 Foam & Fill Large Gaps & Cracks Expanding Polyurethane Sealant, 20 oz., Off-White, Pack of 1

Works well

I bought this to fill in a very large gap in my front door. I'm a senior woman and am not handy in the least but this product is so easy to use and it does an amazing job. I rinse the straw part out with very warm water immediately after using it and this enables me to use it again. If you don't rinse it out then the foam will clog and harden in the straw. If you have any gaps this product will do the job and it volumes up quickly so don't overfill but it's also easy to shave down with a spatula or knife. I'm glad I got a really good product!!

It really expands quickly to fill large vertical gaps when you'd think it would just fall out but it doesn't. My back cement steps have shifted away from the house about 3 to 4 inches and squirrels had squeezed in the and were digging their wainup under the siding. I sealed the area during the day while they were out and that was that no more squirrels . The exterminator quoted $1450.00 so this saved me a bundle. AMAZON isn't uploading my pics for I'd share ..this product could have lots of uses for not alot of money

I read the directions after using it and the tube was clogged, you'll need paint thinner to remove the goo.

The foam does form a solid grip and water tight seal. I was looking for this installation ability. Unfortunately the bottle exploded on my most loved sweater and shoes at the application end. When I use super glue or caulk gel I do not have to wear a full smock and work boots. I wish the instructions had warned me more of the mess this stuff makes! After it dried I was able to trim and sand the splatters off, and it had a smooth window installation. Worth the price but needs more mess warnings!