BISCO HT-820 Firm Cellular Silicone is a firm grade silicone foam that provides enhanced durability and sealing. HT-820 foam offers a higher tear and tensile strength than our lighter grade foams. This material is designed for use in enclosures requiring a more durable, high closure force gasket. HT-820 foam is ideal for sealing and protecting outdoor communication, lighting and electronic enclosures from small dust particles, wind-driven rain and fire.

Features

  • Compact cell structure offers enhanced sealing performance
  • Available in thicknesses from 0.031 to 0.250 in.
  • Typical density of 24 PCF
  • CFD range of 12-20 PSI
  • Resistant to UV, ozone, extreme temperatures and flame

Benefits

  • Excellent memory and low stress relaxation
  • Enhanced sealing performance
  • Offers consistent performance in all environments
  • Reduces maintenance costs associated with gasket failures due to compression set and softening

Downloads

Tools

Explore our calculators, conversion tools, technical papers and more.

  • BISCO® Product Properties Guide

    Filter BISCO® product information by various criteria, including property groups, product category or units, to find the best material for the application.

Support

Elastomeric Material Solutions

Find local representatives for personalized support.