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Rogers Corporation Bisco™ HT-840 Cellular Silicone Foam

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone , Silicone Foam
Manufacturer Rogers Corporation
Trade Name Bisco™
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Rogers Corporation Bisco™ HT-840 Cellular Silicone Foam.pdf
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Material Notes:
Extra firm grade silicone sponge. UL recognized of flame retardance.Applications: High closure-force gaskets, Press-pads where conformable imprinting support is required, such as decal lamination on skis and T-shirtsNo UV degradation per SAE J-1960. Ozone effect rating is 0 (no cracks) per ASTM D-1171. No staining per ASTM D-925(A). Passes AMS-3568 corrosion resistance. Passes SMP-800-C & BSS toxic gas emission rating. Passes hot flex at 230°C (446°F) per ASTM D-573.General BISCO™ silicone information: BISCO™ Cellular Silicones are used as sealing cushioning, vibration isolation, insulation, and thermal management gaskets. Their resistance to environmental extremes, mechanical resilience, and safety features lead to their use in transportation equipment, communications and electrical enclosures, electronic products and components, industrial machinery, and appliances.Data provided by Rogers Corporation.
Physical Properties Metric English Comments
Density 0.449 g/cc
0.0162 lb/in³
ASTM D3574
Water Absorption 0.20 %
0.20 %
ASTM D471
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 0.483 MPa
70.1 psi
ASTM D412
Elongation at Break 55 %
55 %
ASTM D412
Compressive Yield Strength 0.152 MPa
22.0 psi
at 25% deflection; ASTM D1056
Compression Set <= 1.0 %

@Temperature 70.0 °C
<= 1.0 %

@Temperature 158 °F
ASTM D1056
<= 5.0 %

@Temperature 100 °C
<= 5.0 %

@Temperature 212 °F
ASTM D1056
Thermal Properties Metric English Comments
Thermal Conductivity 0.120 W/m-K
0.833 BTU-in/hr-ft²-°F
ASTM C158
Maximum Service Temperature, Air 200 °C
392 °F
Recommended use; SAE J-2236
250 °C
482 °F
Intermittent; Rogers internal test
Minimum Service Temperature, Air -55.0 °C
-67.0 °F
Recommended use; SAE J-2236
Brittleness Temperature -55.0 °C
-67.0 °F
Low temp embrittlement; ASTM D746(B)
Flammability, UL94 V-0
V-0
Listed (may vary with thickness, color, density)
Flame Spread Index <= 25
<= 25
I<sub>S</sub>; ASTM E162
Smoke Density <= 20 min
<= 20 min
D<sub>X</sub> at 1.5 minutes; ASTM E662
<= 50 min
<= 50 min
D<sub>X</sub> at 4 minutes; ASTM E662
Oxygen Index 44 %
44 %
ASTM D2863
Electrical Properties Metric English Comments
Electrical Resistivity 1.00e+14 ohm-cm
1.00e+14 ohm-cm
ASTM D257
Dielectric Constant 1.58
1.58
Dielectric Strength 3.70 kV/mm
94.0 kV/in
ASTM D150
Arc Resistance 98 sec
98 sec
Dry; ASTM D495
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