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.
Resistant to UV, ozone, extreme temperatures and flame
Benefits of BISCO HT-820 Firm Cellular Silicone
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
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
Provide quotation, sample, TDS/MSDS, and technical consultation
Testing sample quality and verifying product compatibility in our laboratory
Customizing material formulas for special applications
Adapting product sizes, quantities, and packaging to meet specific needs
Offering expert advice on suitable equipment and automation processes
Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
PROPERTY
TEST METHOD
VALUE
Color
Visual
Gray
Thickness, mm
(inches)
Internal
0.79 – 12.70
(0.031 – 0.500)
Density, kg/m3 (lb./ft3)
Internal
384
(22)
Compression Force Deflection, kPa (psi)
ASTM D1056
106
(15.3)
Compression Set, % max.
ASTM D1056
100°C (212°F) / 22 hrs / 50%
2.6
Water Absorption, %
Internal 2″ below water surface / 24 hrs /change in weight
