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Home >> High Performance Foams >> BISCO® Silicones >> Products >> HT-840
HT-840
HT-840 is a very firm grade silicone foam that offers the enchanced sealing capabilities of a sponge rubber.  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.

Additional Information
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Colors: Gray
Available Thicknesses: 0.063" - 0.250"
Typical Density: 28 PCF
CFD Range: 16 - 26 PSI
Specifications: UL V0 and HF1
Grade: Extra-Firm Silicone Foam
 
Data Sheets
Size
HT-840 - Extra Firm Cellular Silicone122 KB
 
General
Size
Product Availability55 KB
 
Technical Literature
Size
BISCO Silicones Chemical Resistance Guide 69 KB
Cellular Silicones Compression Force Deflection (CFD) Curves in PSI79 KB
Compression Modulus of Cellular Silicones 51 KB
Pressure Sensitive Adhesive Options 50 KB
Nomenclature for BISCO® Silicones with Pressure Sensitive Adhesive 36 KB
Typical and Maximum Allowed Values for Density of Cellular Silicones 49 KB