A petroleum-based synthetic rubber, Butyl is a copolymer of isobutylene and isoprene. While still available, it has been largely replaced by Ethylene Propylene.

Features & Benefits

  • Excellent resistance to ozone and UV rays, heat, aging, flexing, abrasion, and tearing
  • Low gas and moisture permeability
  • Good choice for shock absorption and electrical insulation performance


Standard Color:            Black
Min. Temperature:    -50°F  (-45°C)
Max. Temperature:   +250°F (121°C) 
Hardness (Shore A):    40-90

Disclaimer: These are general material guidelines.  All application data should be submitted in order to specify the correct material for your application.  All materials should be tested in your application.


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