USA Sealing Foam EPDM Sheet 36"L x 36"W x 1" Thick, Black

Epdm is the most weather resistant foam, with a wide range of chemical compatibility, steam resistance, and good temperature range. also known as crushed-cell foam, semi-closed foam is highly conformable like an open-cell foam but forms a tight seal and prevents air, water, and fluids from passing through it like a closed-cell foam.