Extra-Firm Silicone Foam HT-840
HT-840 is an extra-firm grade silicone foam that offers improved durability and sealing with a higher tear and tensile strength. It is used to seal and protect various outdoor communication, lighting, and electronic enclosures from small dust particles, wind driven rain, and fire. BISCO® Silicones are available in various thicknesses and manufactured in roll form to allow fabricators to easily convert the material to the proper dimensions.
- Excellent memory and low stress relaxation reduces maintenance costs associated with gasket failures due to compression set and softening
- Resistance to ultraviolet light, ozone, extreme temperatures, and flame enables consistent performance in all environments
- Compact cell structure provides improved sealing performance