Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

4

Ethylene Propylene

4

Nitrile

4

HNBR

4

Epichlorohydrin

4

Polychloroprene

4

Chlorosulfonated Polyethylene

4

Chlorinated Polyethylene

3

Urethane

3

Polyacrylate

4

Polysulfide

3

Silicone

4

Ethylene acrylic elastomers

4

Fluorosilicone

3

Tetrafluoroethylene/Propylene

3

Fluoroelastomer - Dipolymer

1

Fluoroelastomer - Terpolymer

1

Perfluoroelastomer

1