Liquid Urethane - 2-Part Closed Cell Rigid Pour Foam - 4 Lb Density - Fast-Acting Formula - Great for Boat Buoyancy, Flotation, Filling, Soundproofing, & Insulation- 1/2 Gallon Kit

Great stuff, but watch out since the final volume is surprisingly large. Worked like a charm in place of concrete to stabilize an arbor in place for a grape vine.

As advertised

Works great

Easy mix and excellent product for adding a small amount of flotation. I use a lot of chemicals and the first thing I always do is read the associated safety warnings. The warnings on this product were not easy to read as I had to carefully peal back the label to read them. See photo. An easy fix would be to put them on the bottles horizontal instead of circular.

Very effective, good expansion. Disappointed at shrinking at the end of curing process

not impressed. I will look elsewhere for this material in the future. End result is sticky and in consistent finaly product. I am a 20+ year special effects artist, creature designer, and toy maker. Chemicals like this are nothing new to me. So the results can't be blamed on operator error. Its simply a bad product, in my extensive professional opinion.

Product says 4lb but it expanded too much like if it was a 2lb foam, my mixing was good and the weather was at the recommended so I don’t think it was me.

Just what I needed