Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

4

Ethylene Propylene

4

Nitrile

2

HNBR

2

Epichlorohydrin

1

Polychloroprene

3

Chlorosulfonated Polyethylene

4

Chlorinated Polyethylene

1

Urethane

2

Polyacrylate

2

Polysulfide

2

Silicone

4

Ethylene acrylic elastomers

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Fluorosilicone

2

Tetrafluoroethylene/Propylene

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Fluoroelastomer - Dipolymer

1

Fluoroelastomer - Terpolymer

1

Perfluoroelastomer

1