A 3/4 inch closed cell compressible backup material. It is inserted into a joint to control sealant depth and to prevent 3 sided adhesion.

This low density polyethylene foam is ideal for glazing installations, expansion joints, window and door perimeters, copings, and pavement joints. Resists oil and most other solvents.

Features

• Easy to apply
• Highly flexible and compressible
• Will not absorb water
• Good temperature resistance
• Partially fills deep cracks before sealant application