This is the cool stuff that expands when the 2 chemicals are mixed. It's lightweight, yet pretty strong.
There's rigid foam, and flexible foam. Both types we sell are in the urethane family of materials.
Urethane foams have numbers describing their respective densities. The number refers to the amount of foam in pounds that is contained in a cubic foot. The higher the number, the more dense the foam, and the less the expansion. Foams with lesser densities expand at greater rates. |
