Reinforced silicone sponge rubber is a general purpose closed cell sponge and can be used in most gasketing applications. This material is flexible and compressible and designed for use in extreme temperature ranges, with excellent weatherability, electrical strength and non-stick properties. The fiberglass is sandwiched between two layers of silicone sponge and offers dimensional stability in the x-y directions. The addition of fiberglass also allows for the accurate cutting of narrow wall gaskets.

Download Specification Sheet


Application Advantages

  • Standard color is blue/gray
  • Reinforced for excellent tensile strength
  • Eliminate outward extrusion under pressure

Typical Physical Properties

PropertyTest MethodValue
Compression DeflectionATMD D105615 psi
Tensile StrengthASTM D412125 psi
ElongationASTM D412<10%
Compression SetASTM D105625%
DensityASTM D35740.020 lbs./in.
Water AbsorptionASTM D1056<5%
Temperature Range-100°F to +500°F


Continuous length 36″ wide. Thickness 1/16″, 1/8″, 3/16″.
Special order thickness 3/32″ is available.
Available in silicone or acrylic adhesive.

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