BISCO® HT-870 – Soft Silicone


BISCO® HT-870 – Soft Cellular Silicone For Custom Gaskets and Seals

Compressibility, softness, and durability allow BISCO® HT-870 to adapt to various environments, making it an ideal choice for sealing outdoor enclosures, protecting electronics from shock and heat, and providing cushioning or vibration isolation for various applications. BISCO® Silicones are available in various thicknesses and manufactured in roll form to allow fabricators to easily convert the material to the proper dimensions.

Available Thickness0.063″ – .500″
Typical Density15 lb/ft3
CFD Range2-7 psi
SpecificationsUL94 V-0 and HF-1
GradeSoft Silicone Foam

Features and Benefits of BISCO® HT-870

  • Excellent memory and low stress relaxation reduces maintenance costs associated with gasket failures due to compression set and softening.
  • Softness allows designers to use less force to seal enclosures and still protect their device from the environment.
  • High compressibility allows material to conform to variable width gaps and awkward shapes, thereby allowing engineers more design flexibility.
  • Resistance to ultraviolet light, ozone, extreme temperatures, and flame enables consistent performance in all environments.
  • Available through distribution sites throughout North America, Europe, and Asia.


  • Environmental seals to protect against penetration of dust, moisture, air, or light within outdoor enclosures such as lighting fixtures, HVAC units, and electronic cabinets
  • Shock absorbing cushions and gaskets within automobiles and appliances


  • Available with a pressure sensitive-adhesive on one or two sides to allow easy application to a variety of surfaces.

Application Bulletins and Articles


Data Sheets

Technical Literature

SRP: A Rogers Corporation Preferred Converter

SRP is proud to be a Rogers Corporation Preferred Converter for their line of PORON® Polyurethane and BISCO® Silicone materials. We provide distribution and converting of these materials to various industries and customers around the world. Being a Preferred Converter for Rogers provides us access to all Rogers materials, with the added benefit of discounts and favorable lead times. SRP converts these materials in custom gaskets, seals, pads and stripping. All products can be laminated with a pressure sensitive adhesive.