Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

1

Ethylene Propylene

1

Nitrile

4

HNBR

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Epichlorohydrin

4

Polychloroprene

4

Chlorosulfonated Polyethylene

3

Chlorinated Polyethylene

2

Urethane

4

Polyacrylate

4

Polysulfide

4

Silicone

4

Ethylene acrylic elastomers

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Fluorosilicone

3

Tetrafluoroethylene/Propylene

1

Fluoroelastomer - Dipolymer

3

Fluoroelastomer - Terpolymer

1

Perfluoroelastomer

1