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BISCO HT-820

Rogers BISCO HT-820 Firm Cellular Silicone provides enhanced durability and sealing in a wide range of environmental conditions and applications.

BISCO HT-820

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.

Data Sheet
Thickness
Features
Benefits
Applications
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BISCO HT-820 Data Sheet

PROPERTYTEST METHODTYPICAL VALUE*
ColorVisualGray
Thickness, mm (inches)Internal0.79 - 6.35
(0.031 - 0.250)
Density, kg/m³ (lb./ft³)Internal384
(22)
Compression Force Deflection, kPa (psi)ASTM D1056106
(15.3)
Compression Set, %ASTM D1056 100°C (212°F) / 22 hrs / 50%2.6
Water Absorption, %Internal
2" below water surface / 24 hrs /
change in weight
0.5
Temperature Range, °C (°F)Internal-55 to +200
(-67 to +392)
Thermal Conductivity, W/m °K ASTM D5180.09
Low Temperature FlexASTM D1056
-55°C (-67°F) / 5 hrs
Pass
Low Temperature BrittlenessASTM D746
-55°C (-67°F) / 3 min
Pass

BISCO HT-820 Thickness

NOMINAL THICKNESSTOLERANCE
mm (inches)mm (inches)
0.79
(0.031)
± 0.381 (± 0.015)
1.59
(0.063)
± 0.508
(± 0.020)
2.39
(0.094)
± 0.508
(± 0.020)
3.18
(0.125)
± 0.635
(± 0.025)
4.78
(0.188)
± 0.635
(± 0.025)
6.35
(0.250)
± 0.762
(± 0.030)

BISCO HT-820 Features

  • Compact cell structure offers enhanced sealing performance
  • Available in thicknesses from 0.031 to 0.250 in.
  • The typical density of 24 PCF
  • CFD range of 12-20 PSI
  • Resistant to UV, ozone, extreme temperatures, and flame

BISCO HT-820 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

BISCO HT-820 Applications

  • Active Safety
  • Cold Supply Chain
  • Gap Filling
  • Gasketing Sealing
  • Shock Absorption
  • Vibration Management
  • Cutting or slitting to the length and width required by the customers
  • Laminate double-sided tape or other materials
  • Die cut according to customer's drawing

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