Elastomer

Rating

Natural Rubber, Isoprene

3

Butadiene Styrene, Butadiene

3

Butyl

1

Ethylene Propylene

1

Nitrile

4

HNBR

4

Epichlorohydrin

4

Polychloroprene

2

Chlorosulfonated Polyethylene

4

Chlorinated Polyethylene

1

Urethane

4

Polyacrylate

4

Polysulfide

2

Silicone

4

Ethylene acrylic elastomers

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Fluorosilicone

4

Tetrafluoroethylene/Propylene

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Fluoroelastomer - Dipolymer

4

Fluoroelastomer - Terpolymer

4

Perfluoroelastomer

1