Elastomer Guide 2

Common Name
Base Polymer		 Chemical Name Compression
Set		 Resilience
Cold		 Resilience
Hot		 Dielectic
Strength		 Electrical
Insulation		 Impermeability
to
Gases		 Acid Resistance
Dilute		 Concentrated Solvent
Resistance,
Aliphatic
Hydrocarbons		 Aromatic
Hydrocarbons		 Oxygenated
(Ketones, etc.)
Natural Rubber Polyisoprene E E E E G-E G F-G F-G P P P
SBR or GR-S or Buna S Styrene
Butadiene		 G G G G G F F-G F-G P P P
Butyl Isobutylene
Isoprene		 F P VG G G O E G P P G
Butadiene Polybutadiene VG O E G G-E G F-G F-G P P P
EPDM or EP Rubber Ethylene
Propylene		 G G VG O O G E G P P E
Neoprene Chloroprene G G VG VG F-G G E G F-G F P-F
CPE Chlorinated Polyethylene G F G E G E E G G F F
Nitrile or NBR or Buna N Acrylonitrile
Butadiene		 G G G P P G G G E G P
Urethane Polyester/
Ether
Urethane		 G G G E G G F P F-G P P
Hypalon Chlorosulfonated
Polyethylene		 F F G VG G E E G F-G F P-F
Epichlorohydrin Rubber Polyalkylene
Oxide		 P G G G G E F-G F E G P
Acrylic Polyacrylate G P P F F G F P E F-P P
Silicone Polysiloxane VG E E G E F E F P P P
Fluorosilicone Fluoroalkyl
Polysiloxane		 G E E G E G E F E E P
Fluorocarbon Fluorinated
Hydrocarbon		 VG F G VG G E G-E E E E P
O=Outstanding, E=Excellent, VG=Very Good, F=Fair, P=Poor