EPDM ETHYLENE-PROPYLENE-DIENE-MONOMER
SBR STYRENE-BUTADIENE RUBBER
NBR ACRYLONITRILE-BUTADIENE RUBBER
HNBR HYDROGENATED ACRYLONTRILE-BUTADIENE RUBBER - A VARIATION OF NITRILE RUBBER
CR CHLOROPRENE OR POLYCHLOROPRENE, OTHERWISE KNOWN AS "NEOPRENE"
NR NATURAL RUBBER, THE ONLY RUBBER COMPOUND THAT IS NOT SYNTHETIC
FKM FLUOROELASTOMERS
BR BUTADIENE RUBBER , COMMONLY CALLED BUTYL RUBBER. THERE IS ANOTHER VARIANT KNOWN AS POLYBUTADIENE RUBBER
CSM CHLOROSULFONYLPOLYETHYLENE
ECO EPICHLOROHYDRIN RUBBERS
EOM ETHYLENE OCTENE RUBBER