Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

2

Ethylene Propylene

2

Nitrile

4

HNBR

4

Epichlorohydrin

3

Polychloroprene

4

Chlorosulfonated Polyethylene

4

Chlorinated Polyethylene

4

Urethane

4

Polyacrylate

4

Polysulfide

2

Silicone

2

Ethylene acrylic elastomers

4

Fluorosilicone

2

Tetrafluoroethylene/Propylene

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Fluoroelastomer - Dipolymer

2

Fluoroelastomer - Terpolymer

1

Perfluoroelastomer

1