The BISCO® RS-700 Series of closed cell silicone sponges are designed to perform in conditions that require a gasket with extra strength and durability. RS-700 products provide high tensile strength and elongation, low compression set and a smooth surface to laminate and bond adhesives. These materials are rugged enough to outperform competitors in harsh environments that require silicone material. RS-700 products are available in continuous roll form in three firmness grades. These products are currently available for sale only in North America, Central America, South America and Asia.


  • Available thicknesses from 0.094 - 0.5 in.
  • Rated for constant use up to 205°C (401°F) and intermittent use up to 260°C (500°F)
  • Rated for low temperature embrittlement point of -55°C (-67°F)
  • Seals against water at conditions as low as 15% compression
  • Meets the strictest UL gasket certifications


  • Built to withstand the harshest applications and most extreme conditions
  • Stretches up to 175% before material failure
  • Offers unparalleled water sealing capabilities over long periods of time
  • Continuous roll fabrication means improved manufacturing efficiency
  • Combines high tensile strength with abrasion resistance



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  • Impact Prediction Tool

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  • Vibration Isolation Tool

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