Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

4

Ethylene Propylene

4

Nitrile

3

HNBR

2

Epichlorohydrin

4

Polychloroprene

4

Chlorosulfonated Polyethylene

4

Chlorinated Polyethylene

3

Urethane

4

Polyacrylate

4

Polysulfide

3

Silicone

4

Ethylene acrylic elastomers

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Fluorosilicone

3

Tetrafluoroethylene/Propylene

4

Fluoroelastomer - Dipolymer

1

Fluoroelastomer - Terpolymer

1

Perfluoroelastomer

1