Fluoroelastomer (Type 1 or A), Fluorinated Rubber, Fluorocarbon Rubber, Viton ®
Silicone Rubber
EPDM, EPR, EP Rubber
Buna-N, Nitrile Rubber
Neoprene, Chloroprene
Chemical Designations (ASTM D1418-1, ISO/DIN 1629, etc.)	CR	NBR	EPM, EPDM	SI,MQ, VMQ, PMQ	FKM, FPM
ASTM D2000 Elastomer Group	BC, BE	BF,BG, BK,CH	BA,CA, DA	FE, GE	HK
E(xcellent)=Minor Effect; G(ood)=Moderate Effect; F(air)=Static Seals Only; P(oor)=Not Recommended; na=Information Not Available