Soft Silicone Sponge Rubber Sheet | National Silicone

Soft Silicone Sponge

Closed Cell Silicone Sponge Rubber

This low compression set, soft density silicone sponge is ideal for demanding sealing and gasket applications. It is produced with a fabric finish on both sides, is flexible and can handle extreme temperature environments. Our soft silicone sponge offers excellent compression set resistance and can maintain its resiliency under extended compression.

 

KEY FEATURES

  • Excellent for seals and gaskets
  • High compressibility
  • Low compression set
  • UV/Ozone resistant

 

MATERIAL AVAILABILITY

Available in – Continuous rolls or cut sheets
Thickness available (in) – 0.0625 to 0.500
Typical roll lengths (ft) – 25 to 100
Typical roll widths (in) – 36
Surface finishing – Fabric impression finish, both sides
Cell structure – Closed cell
Color – Red/orange, grey, black, color matching available

 

TEMPERATURE RANGE

-99°F to +450°F  (-73°C to 232°C)

 

PHYSICAL PROPERTIES

Properties
Compression deflection (25%) psi (kPa) 3-8 (21-55) ASTM D1056
Density < 0.25” thick pcf (kg/m3) 43 (690) max. ASTM D1056
Density ≥ 0.25” thick pcf (kg/m3) 34 (550) max. ASTM D1056
Compression set (22h, 100°C) % 60 max. ASTM D1056
Tensile strength psi (kPa) 33 (225) min. ASTM D412

More information found on the full specification sheet. Go To Datasheets

 

 

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