BISCO® Solid Silicone
Capabilities | Custom Designed Gaskets | Gasket Material | Seals and Gaskets
Microcellular Urethane Foams | Cellular Urethanes Gasketing | BISCO® Silicones
BISCO® Solid Silicone
The following content is provided by Rogers Corporation, High Performance Foams Division.
BISCO® Solid Silicone materials are designed for high temperature/high pressure gasketing applications. They are available in a range of thicknesses and durometers, offering flexibility in materials selection. Grades are also available with fiberglass reinforcement for added dimensional stability and with increased tear strength.
BISCO Solid Silicones Offer:
- High temperature resistance (to 425°F/218°C)
- Excellent sealability
- UV and ozone resistance
- Excellent recovery after compression
| Property | Test Method | HT-1240 | HT-1250 | HT-1260 | HT-1270 |
|---|---|---|---|---|---|
| Physical Properties: Durometer, Shore "A" (pts) | ASTM D2240 | 40 | 50 | 60 | 70 |
| Tensile Strength, psi (MPa) | ASTM D412 | 825 (5.7) | 950 (6.6) | 1050 (7.2) | 1150 (7.9) |
| Elongation, % | ASTM D412 | 350 | 300 | 250 | 200 |
| Tear Strength, ppi (kN/m) | ASTM D624 | 50 (8.8) | 70 (12.2) | 75 (13.1) | 90 (15.8) |
| Compression Set, % | ASTM D395B - 70 hr @ 302°F/(150°C) | 20 | 20 | 20 | 25 |
| Effects of Dry Heat Aging: Change in Hardness, Shore "A" (pts), 70 hr. @ 437°F (225°C) |
ASTM D573 | ±5 | ±5 | ±5 | ±5 |
| Change in Tensile Strength, % | ASTM D573 | -15 | -15 | -15 | -15 |
| Change in Elongation, % | ASTM D573 | -35 | -35 | -35 | -35 |
| Effects of Oil Immersion (ASTM#1 Oil): Change in Hardness, Shore "A" (pts), 70 hr. @ 302°F (150°C) |
ASTM D471 | -10/+5 | -10/+5 | -10/+5 | -10/+5 |
| Change in Tensile Strength, % | ASTM D471 | -10 | -10 | -10 | -10 |
| Change in Elongation, % | ASTM D471 | -15 | -15 | -15 | -15 |
| Change in Volume, % | ASTM D471 | +5 | +5 | +5 | +5 |
| Electrical & Thermal
Properties Dielectric Constant |
ASTM D150 | 3.0 | 3.0 | 3.1 | 3.2 |
| Dielectric Strength, Volts/mil | ASTM D149 | 400 | 400 | 400 | 400 |
| Volume Resistivity (Ohm/cm) | ASTM D257 | >1x1014 | >1x1014 | >1x1014 | >1x1014 |
| Thermal Conductivity (BTU in/hr/ft2/°F) (Wm/°K) | ASTM C518 | 1.7 0.25 |
1.8 0.26 |
1.9 0.27 |
2.1 0.30 |
| Environmental Resistance Volume Change from Water Immersion % |
ASTM D471 - 70 hr. @ 212°F/(100°C) | +10 | +5 | +5 | +5 |
| Low Temperature Embrittlement, °F (°C) | ASTM D2137 | -80 (-62) | -80 (-62) | -80 (-62) | -80 (-62) |
| Intermittent Upper Temperature Limit, °F (°C) |
Rogers Internal | 500 (260) | 500 (260) | 500 (260) | 500 (260) |
| Recommended Use Temperature, °F (°C) |
SAE J-2236 | -80 to 425 (-62 to 218) |
-80 to 425 (-62 to 218) |
-80 to 425 (-62 to 218) |
-80 to 425 (-62 to 218) |
| Specifications Available ZZ-R-765, Class lla/llb, Grade AMS Specification |
- | 40 n/a |
50 3302 |
60 3303 |
70 3304 |
| Dimensions Available Thickness Range Standard Widths Standard Colors |
- | 0.020"/0.250" (0.5mm/6.4mm) 36"(915mm) Red* |
0.020"/0.250" (0.5mm/6.4mm) 36"(915mm) Red* |
0.020"/0.250" (0.5mm/6.4mm) 36"(915mm) Red* |
0.020"/0.250" (0.5mm/6.4mm) 36"(915mm) Red* |
* White, Black and Gray Formulations Available.
| Property | Test Method | HT-6135 | HT-6240 | HT-1451 | HT-1500 |
|---|---|---|---|---|---|
| Physical Properties: Durometer, Shore "A" (pts) |
ASTM D2240 | 35 | 40 | 50 | 75 |
| Tensile Strength, psi (MPa) | ASTM D412 | 800 (5.5) | 800 (5.5) | 1100 (7.6) | 300 (5.3)** |
| Elongation, % | ASTM D412 | 450 | 250 | 350 | n/a |
| Tear Strength, ppi (kN/m) | ASTM D624 | 70 (12.3) | 75 (13.1) | 75 (13.1) | n/a |
| Compression Set, % 70 hr @ 302°F (150C) |
ASTM D395B | 30 | 35 | 25 | 25 |
| Effects of Dry Heat Aging: Change in Hardness, Shore "A"(pts) 70 hr. @ 437°F (225°C) |
ASTM D573 | ±5 | ±5 | ±5 | -5/+10 |
| Change in Tensile Strength, % | ASTM D573 | -15 | -15 | -15 | -20** |
| Change in Elongation, % | ASTM D573 | -30 | -40 | -25 | n/a |
| Effects of Oil Immersion (ASTM#1 Oil) Change in Hardness, Shore "A" (pts) 70 hr. @ 302°F (150°C) |
ASTM D471 | ±5 | ±5 | -15/+5 | -10/+5 |
| Change in Tensile Strength, % | ASTM D471 | -20 | -35 | -15 | -20** |
| Change in Elongation, % | ASTM D471 | -20 | -40 | -15 | n/a |
| Change in Volume, % | ASTM D471 | +15 | +10 | +10 | +10 |
| Electrical & Thermal Properties Dielectric Constant |
ASTM D150 | 3.0 | 3.0 | 3.0 | 3.2 |
| Dielectric Strength, Volts/mil | ASTM D149 | 500 | 400 | 400 | 400 |
| Volume Resistivity (Ohm/cm) | ASTM D257 | >1x1014 | >1x1014 | >1x1014 | >1x1014 |
| Thermal Conductivity (BTU in/hr/ft2/°F) (Wm/°K) |
ASTM C-518 | 1.5 0.21 |
1.5 0.21 |
1.7 0.25 |
2.0 0.29 |
| Environmental Resistance Volume Change from Water Immersion % 70 hr. @ 212°F (100°C) |
ASTM D471 | +5 | +5 | +5 | +5 |
| Low Temperature Embrittlement, °F (°C) | ASTM D2137 | -80 (-62) | -80 (-62) | -80 (-62) | -80 (-62) |
| Intermittent Upper Temperature Limit, °F (°C) | Rogers Internal | 500 (260) | 500 (260) | 500 (260) | 500 (260) |
| Recommended Use Temperature, °F (°C) | SAE J-2236 | -80 to 425 (-62 to 218) |
-80 to 425 (-62 to 218) |
-80 to 425 (-62 to 218) |
-80 to 425 (-62 to 218) |
| Specifications Available ZZ-R-765, Class lla/llb, Grade AMS Specification |
- | n/a n/a |
n/a n/a |
n/a n/a |
n/a 3320*** |
| Dimensions Available Thickness Range Standard Widths Standard Colors |
- | 0.010"/0.125" (0.3mm/3.2mm) 36" (915mm) Cream |
0.010"/0.125" (0.3mm/3.2mm) 36" (915mm) Transparent |
0.020"/0.125" (0.5mm/3.2mm) 36" (915mm) Translucent |
0.031"/0.125" (0.8mm/3.2mm) 36" (915mm) Red* |