At R4 Gaskets, we offer high temperature silicone sponge gaskets designed for applications demanding exceptional heat protection and resistance. Available in a range of thicknesses from 1.5mm to 12mm, our gaskets provide the perfect fit for any application, ensuring optimal performance.

Key Features and Benefits

  • Extended Temperature Range: Our high temperature silicone sponge gaskets boast an impressive temperature tolerance, performing reliably between -60°C and +270°C, with intermittent resistance up to 300°C. This makes them ideal for demanding environments, including food preparation and pharmaceutical applications.
  • Superior Material Properties: Enjoy the same excellent air and watertight sealing properties as our standard grade silicone sponges, with the added benefit of enhanced temperature resistance. The material is both soft and flexible, offering versatility for various uses.
  • Flammability Compliance: Our silicone sponge gaskets meet the flammability standards of FAR 25/JAR25/CS 25 Appendix F, Part 1 (a)(i)(iv) and (a)(1)(v) horizontal flammability, ensuring safety in critical applications.

Available Densities

Choose from four standard densities to match your specific needs:

  • P10 – Soft
  • P16 – Medium
  • P24 – Firm
  • P33 – Extra Firm

Our high temperature silicone sponge gaskets are engineered for performance and reliability in high-heat environments. Trust R4 Gaskets for superior quality and tailored solutions for your gasket requirements.

We have a wide range of standard gasket types and shapes as well as customised gaskets using our in-house CNC machine. For guidance on how to accurately measure a gasket please see our “How to Measure a Gasket” guide.

High Temperature Silicone Sponge Datasheet

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R4 Gaskets
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