R-10490 Medium

R-10490 Medium silicone sponge rubber is a fluorosilicone closed-cell sponge that can be used in most gasketing applications. This material is flexible and compressible and designed for use in extreme temperature rages, with excellent weatherability, compression set resistance, electrical strength and non-stick properties. R-10490 is often chosen as the material of choice for applications containing oils and fluids that would degrade normal elastomers.

Download Specification Sheet

R-10490 Medium

Application Advantages

  • Capable of meeting MIL-R-6130 Type II, Grade A, B, and C (Excluding paragraph 4.5.7 Flame Resistance)
    ASTM D6576 Type II Grade A, B, and C (Excluding paragraph 15 Flame Resistance)
  • Standard color is blue
  • Capable of meeting AMS 3323

Typical Physical Properties

PropertyTest MethodValue
Compression DeflectionATMD D105615 psi
 Tensile StrengthASTM D412180 psi
 ElongationASTM D412125%
 Compression SetASTM D105625%
 DensityASTM D35740.020 lbs./in.
 Water AbsorptionASTM D1056<5%
 Temperature Range-80°F to +400°F


Sheet goods 36″ x 36″ x 1/16″, 3/32″, 1/8″.
Special order only; please contact sales for minimum order quantities, pricing and delivery.

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