Base Polymer Selection Guide
		Resistance to Solvents
		Oil & Grease	Aliphatic	Aromatic	Oxygenated	Halogenated
Polymer types
General Purpose
Natural Rubber	NR	P	P	P	F to G	P
Polyisoprene	IR	P	P	P	G	P
Styrene Butadiene Rubber	SBR	P	P	P	P to G	P
Polybutadiene Rubber	BR	P	P	P	G	P
Ethylene Propylene Rubber	EPDM	P	P	P	G to E	P
Butyl	IIR	P	P	P	P to E	P
Oil Resistant
Butadiene Acrylonitrile (Nitrile)	NBR	E	G to E	F to G	P	P to F
Polychloroprene (Neoprene)	CR	G	P to G	P to F	P to F	P
Chlorosulfonated Polyethylene (Hypalon®)	CSM	G to E	F to G	F	P	P
Polyurethane	AU, EU	G to E	G to E	P to F	P	F to G
Epichlorhydrin	CO, ECO	E	G to E	G to E	F	E
Specialty
Carboxylated Nitrile	XNBR	E	G to E	F to G	P	P to F
Hydrogenated Nitrile	HNBR	E	G to E	P to F	P	P to F
Silicone	SI	P	P to F	P	P	P
Polysulfide (Thiokol)	T	G to E	E	G	G	F
Fluoroelastomers (Viton®)	FMK	E	E	G to E	P	VG
Polyacrylate	ACM	E	E	P to G	P	P to G
Nitrile / PVC blend	NBR / PVC	E	E	F to G	P	P to F
Example Fluids
Aliphatic hydrocarbons	- toluene, xylene
Aromatic hydrocarbons	- kerosene, gasoline, naphtha, hexane, mineral spirits, printing inks, lubricants and greases
Halogenated	- methylene chloride, per/trichlorethylene
Oxygenated	- ketones, MEK, MIBK, acetone

Hypalon® and Viton® are the registered trademarks of DuPont Dow Elastomers.