Natural Rubber (NR) Synthetic Polyisoprene (IR) Styrene Butadiene Rubbers (SBR) Polybutadiene Rubbers (BR) Butyl and Halobutyl Rubbers (IIR, BIIR, CIIR) Ethylene Propylene Rubbers (EPM, EPDM) Crosslinked Polyethylene (XLPE) Neoprenes (CR) Nitrile Rubbers (NBR) HYPALON and Chlorinated Polyethylene (CSM, CPE) Silicone Rubbers (MQ) Fluorocarbon Rubbers (FKM)