NR	Natural rubber
SBR	Styrene-butadiene rubber
CR	Chloroprene rubber, NEOPRENE
NBR	Nitrile rubber
EPDM	Ethylene - Propylene rubber
IIR/XIIR	Butyl rubber
CSM	Chlorosulphonyl Polyethylene rubber, HYPALON
PMQ/PVM/VMQ	Silicone rubber
FKM	Fluoroelastomer rubber, VITON
CO/ECO/GECO-ETER	Epichlorohydrin rubber
AEM	Ethylene - Acrylate rubber, VAMAC