3M Automix Pillar Foam

Two part urethane which foams in place to fill posts, pillars, and automotive body cavities.

This rigid foam expands to 10 times its original volume. It is really designed to flow in and fill to add strength and eliminate wind noise. This product can be used to replace OEM rigid foams.

Foam time is 1 minute, work time is 5 minutes, and cure time is one hour.