Elastomer

Rating

Natural Rubber, Isoprene

3

Butadiene Styrene, Butadiene

3

Butyl

1

Ethylene Propylene

1

Nitrile

4

HNBR

4

Epichlorohydrin

4

Polychloroprene

3

Chlorosulfonated Polyethylene

2

Chlorinated Polyethylene

1

Urethane

4

Polyacrylate

4

Polysulfide

3

Silicone

3

Ethylene acrylic elastomers

4

Fluorosilicone

4

Tetrafluoroethylene/Propylene

4

Fluoroelastomer - Dipolymer

4

Fluoroelastomer - Terpolymer

4

Perfluoroelastomer

1