scientific (technical) name

natural rubber (NR)

styrene butadiene rubber (SBR)

nitrile rubber (nbr)

chloroprene rubber (cr)

hypalon (csm)

butyl rubber (iir)

ethylene propylene diene monomer (epdm) (epm) (epr)

polyacrylic rubber (acm)

silicone rubber (vmq)

viton ®  (fkm)(fpm)

polyurethane (au/eu)

xnmr or carboxylated nitrilr rubber

hnbr (hydrogenated nitrile rubber)