USA Sealing Foam Buna-N/PVC Sheet 12"L x 12"W x 1/4" Thick, Black, Acrylic Adhesive

Buna-n/pvc foam exhibits excellent impact absorption and good chemical resistance properties. 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.