Elastomer

Rating

Natural Rubber, Isoprene

4

Butadiene Styrene, Butadiene

4

Butyl

4

Ethylene Propylene

4

Nitrile

4

HNBR

1

Epichlorohydrin

---

Polychloroprene

1

Chlorosulfonated Polyethylene

1

Chlorinated Polyethylene

---

Urethane

1

Polyacrylate

4

Polysulfide

4

Silicone

1

Ethylene acrylic elastomers

---

Fluorosilicone

1

Tetrafluoroethylene/Propylene

---

Fluoroelastomer - Dipolymer

1

Fluoroelastomer - Terpolymer

1

Perfluoroelastomer

1