2 Lb Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

Bought this because our truck camper has a habit of moving around in the bed of my truck.When we got to Florida Keys we centered the camper and filled trash bags with this stuff. It worked great. 1500 miles later and the camper hasn't moved.The only thing I would have done different was I would use heavier trash bags next time.

Magnificent. I had a sewer vent inside of a wall cavity that was leaking sewer gas inside the concrete slab. Faced with $5000 of work, I instead mixed a cup of each of these and poured it into the cavity. The closed-cell foam blocks sewer gas better than concrete. It worked beautifully!The next day, I decided to fix my tippy mailbox. Instead of mixing a bunch of concrete, I poured in a half-cup of this. Job done.The only thing unclear is that you have to add B to A, not the other way around. (Or maybe it is the other way around. Read the instructions.)The only thing that's annoying is that A and B have different densities so I have to mix it by volume, not weight. I'm probably too careful with that.

This product was amazing!!!! This was not what This product was made for but using this for my halloween project is great. Can be messy if not used properly but with the instructional video and how to use guide, it makes it easy for anyone to use.Great, great, great product highly recommended.

I'm doing under the floor of a 1975 17' smoker craft aluminum boat. I was hoping that I could do the whole thing in one order. I even put blocks of pink foam board to use up more space, it helped but it still only did about half. And that's with a channel down the center of the bottom of the boat. I also pulled out all the leftover from the mixing bucket after it was fully expanded and put into the next space to help fill for the next pour. Other than that, it works good and does what it's supposed to do. I just wish one order would have been enough.

This product was easy to mix and has done a great job keeping me and my family safely fishing on our homemade outriggers

Great stuff.

Expanded beautifully. If you are looking to fill a very large void or something like I did, this is the stuff. I was building an insulated cover for a water hydrant that I need to use all winter. I used two bits of sonotube 40" tall. One was 24" dia and one was 18" inserted inside the other one. I used this stuff to fill the gap and it was perfect. I bought the half gallon set and am very pleased.

Worked as directed, if you poor too much it will definitely come over th e top