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Expanded Closed Cell Silicone Sponge

Service Detail from JAMAK Fabrication USA

Expanded Closed Cell Silicone Sponge-Image

JAMAK manufactures silicone sponge in a variety of profile shapes and densities to best fit your use requirements. Silicone sponge is available in continuous lengths, custom or standard profiles, and as bonded gaskets. Standard colors include black, white, gray and red-oxide. Custom matched colors are also available.

Silicone sponge is commonly used in applications requiring superior sealing properties in harsh environments for industries such as automotive and appliance. Uses include lighting gaskets, door seals and latch seals.


  • Density lbs/cu ft.
    • Soft 15-18
    • Medium 22-26
    • Firm 32-35
  • Water Absorption %
    • <5%
  • Service Temperature
    • -40°F to +400°F
  • Compression Deflection 25% (per ASTM 1056)
    • Soft 2-5 PSI
    • Medium 6-9 PSI
    • Firm 13-17 PSI
  • Compression Set% (22 Hrs @ 212°F per ASTM 1056)
    • Soft 15%
    • Medium 6%
    • Firm 8%
  • Ozone
    • No Degradation
  • Brittleness Temp (Per ASTM 1056)
    • -40°C

Visit our website at or call 800-39JAMAK Ext. 5217 for more information.