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Chlorosulfonated Polyethylene Rubber (CSM)

CSM rubber is a thermoset elastomer or rubber material. It has a moderately low tensile strength among the rubber materials in the database. The graph bars on the material properties cards below compare CSM rubber to other rubber materials (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elongation at Break

400 %

Tensile Strength: Ultimate (UTS)

9.0 MPa 1.3 x 103 psi

Thermal Properties

Glass Transition Temperature

0 °C 32 °F

Maximum Temperature: Mechanical

120 °C 240 °F

Otherwise Unclassified Properties


1.2 g/cm3 75 lb/ft3

Limiting Oxygen Index (LOI)

25 %

Common Calculations

Strength to Weight: Axial

2.1 points

Strength to Weight: Bending

8.0 points

Followup Questions

Further Reading

Rubber Formulary, The, Peter A. Ciullo and Norman Hewitt, 1999