Fiberglass Supply Depot 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (2 Gallon Kit)

Good stuff. Works well. Read the direction AND HEED THEM! (It hardens FAST)

Does what it needs to do

Works exactly as described as long as you follow instructions. I did a test batch and it didn’t turn out so good. I then put on a space heater and made sure the temperature was above the recommended 75-80F and mixed the two compounds as instructed. It worked perfectly for my DIY project, couldn’t be happier as it saved me a lot of headache. A word of warning though it hardens very quickly and becomes hard as a rock. Make sure you prepare the surface and block off anywhere you don’t want it to go. Act quickly and it will turn out well, once you pour there’s no redo.

I was using this to void fill a vintage boat project. This stuff did the trick and was cheaper than some competitors. Listen to the instructions and it will work. After the foam hardens it is very sturdy and won’t be going anywhere. Yes it is somewhat messy but for an efficient way of void filling it was worth it.

Great foam, as described, great deal!

This product is real good, and it works real fast. Make sure you have everything set up before mixing parts A & B.

Works as should

Easy to use. Just make sure you dont mix too much at once. Once mixed, this stuff expands quickly. So, work fast.