詳細說明：

BISCO® HT-840 – Extra Firm Cellular Silicone

HT-840 is an extra-firm grade silicone foam that offers
improved durability and sealing. It is used to seal and protect
various outdoor communication, lighting, and electronic
enclosures from small dust particles, wind driven rain, and fire.
It offers a higher tear and tensile strength than our lighter
grade foams. BISCOR Silicones are available in various
thicknesses and manufactured in roll form to allow fabricators
to easily convert the material to the proper dimensions.
Features and Benefits
刋 Excellent memory and low stress relaxation reduces
maintenance costs associated with gasket failures due to
compression set and softening.
刋 Resistance to ultraviolet light, ozone, extreme
temperatures, and flame enables consistent performance
in all environments.
刋 Compact cell structure provides improved sealing
performance.
刋 Available through distribution sites throughout North
America, Europe, and Asia.