Chlorosulfonated Polyethylene – CSM

Although DuPont® stopped the manufacture of this material in 2010 (Trade name Hypalon®) it is still readily available. When compounded correctly it has some unique combination of properties that include U/V color stability, oil chemical resistance and weatherability. It is commonly used in calendered sheets and extrusions where protection from the elements are required.

  • Excellent ozone and weather resistance (including colored compounds)
  • Heat resistance up to 150°C/302°F
  • Permanent bright colors
  • Chemical, solvent and oil resistant
  • Good electrical insulating properties
  • Low flammability

  • ASTM D2000 “CE/DE” type
  • Mil-R-81828