Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

3

Ethylene Propylene

3

Nitrile

4

HNBR

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Epichlorohydrin

3

Polychloroprene

4

Chlorosulfonated Polyethylene

2

Chlorinated Polyethylene

1

Urethane

4

Polyacrylate

4

Polysulfide

2

Silicone

4

Ethylene acrylic elastomers

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Fluorosilicone

3

Tetrafluoroethylene/Propylene

2

Fluoroelastomer - Dipolymer

2

Fluoroelastomer - Terpolymer

1

Perfluoroelastomer

1