Rubber:
EPDM Rubber
Butyl
Chlorosulphonated Polyethylene
Natural Rubber
Polychloroprene (Neoprene)
Silicone (and fluorosilicone) Rubber
Styrene Butadiene Rubber (SBR)
Nitrile (Buna-N)
Viton
 
Sponge/Foam:
Closed Cell Neoprene Sponge Rubber
Closed Cell Blended Sponge Rubber (Neoprene/EPDM/SBR Blend)
Closed Cell EPDM Sponge Rubber
Closed Cell Nitrile (Buna-N) Sponge Rubber
Closed Cell PVC
Natural Open Cell Sponge
Neoprene Open Cell Sponge
Polyurethane Foam
Microcellular Urethane Foam
Cross-linked Polyethylene Foam
Silicone Foam
 
Other Materials:
Copaco
Cork
Durlon - Non Asbestos Compressed Sheet
Fishpaper
Kapton
Mylar
Nomex
Nylon

PET-G
Phenolics
Polyethylene
Polypropylene
PSA/Adhesive
PVC
Teflon
Treated Paper