BISCO® HT-820 – A0 – Grey – 0.8mm | RogersCustom pads and gaskets priced instantly and made to order within 24 hours!

BISCO® HT-820 – A0 – Grey – 0.8mm | Rogers

Performance Solid Silicone Sheet

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  • Typical density of 24 PCF
  • CFD range of 12-20 PSI
  • Resistant to UV, ozone, extreme temperatures and flame
  • No Adhesive
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Stock sheet size: 100cm x 91.5cm

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SKU: 94294 Categories: , , , Brand:

Description

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.

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

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

Recommended Uses

  • Gasketing and Sealing
  • Cold Supply Chain
  • Gap Filling
  • Shock Absorption
  • Vibration Managment

Physical Properties

Properties Test Method Typical Value* Specification**
Colour Visual Gray –
Thickness, mm (inch) Internal 0.79 – 6.35<br>(0.031 – 0.250) See “Width Tolerance” table
Density, kg/m³ (lb./ft³) Internal 384<br>(22) 336 – 528<br>(21 – 33)
Compression Force Deflection, KPa (psi) ASTM D1056 106<br>(15.3) 82 – 138<br>(12 -20)
Compression, Set, % ASTM D1056<br>100°C (212°F) / 22 hrs / 50% 2.6 < 5
Water Absorption, % Internal<br>2″ below water surface / 24 hrs /<br>change in weight 0.5 < 5

Flammability Properties

Properties Test Method Typical Value* Specification**
Flame Resistance UL 94 (File E83967) Meets V-0
Flame Spread Index (ls) ASTM E162 Meets Flaming Mode < 35
Smoke Density (Ds) ASTM E662 Meets Flaming Mode, 1.5 min, < 100<br>Flaming Mode, 4.0 min, < 200
Burn Length FMVSS 302 Meets < 100 mm/min

Thermal Properties

Properties Test Method Typical Value* Specification**
Temperature Range, °C (°F) Internal -55 to +200<br>(-67 to +392) –
Thermal Conductivity, W/m °K ASTM C518 0.09 –
Low Temperature Flex ASTM D1056<br>-55°C (-67°F) / 5 hrs Pass –
Low Temperature Brittleness ASTM D746<br>-55°C (-67°F) / 3 min Pass –

Outgassing Properties

Properties Test Method Typical Value* Specification**
Total Mass Loss (%) ASTM E595<br>(4×10* -6 Torr) 2.11 –
Collected Volatile Condesible Materials (CVCM) (%) ASTM E595
(4×10* -6 Torr)		 0.63 –
Water Vapor Regain (%) ASTM E595
(4×10* -6 Torr)		 0.02 –

Electrical Properties

Properties Test Method Typical Value* Specification**
Dielectric Strength, Volts/mil ASTM D149 66 –
Dielectric Constant, 1 kHz ASTM D150 1.7 –
Dissipation Factor, 1 kHz ASTM D495 0.006 –
Dry Arc Resistance, Seconds ASTM D495 174 –
Volume Resistivity, Ohm-cm ASTM D257 10^14 –

Rogers BISCO® HT-820 Datasheet





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