Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

2

Ethylene Propylene

2

Nitrile

4

HNBR

4

Epichlorohydrin

4

Polychloroprene

3

Chlorosulfonated Polyethylene

3

Chlorinated Polyethylene

1

Urethane

3

Polyacrylate

4

Polysulfide

4

Silicone

4

Ethylene acrylic elastomers

4

Fluorosilicone

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Tetrafluoroethylene/Propylene

2

Fluoroelastomer - Dipolymer

4

Fluoroelastomer - Terpolymer

4

Perfluoroelastomer

1