BISCO® HT-870 Silicone Foam
Rogers BISCO® HT-870 Silicone Foam is a soft, open-cell silicone foam designed to deliver low closure force with improved sealing capability. Offering a slightly firmer structure than BF-1000, HT-870 maintains exceptional compressibility while providing enhanced resistance to compression set, UV, ozone, and extreme temperatures. With its long-term durability and ability to meet stringent flame resistance standards, HT-870 is ideal for sealing and cushioning in enclosures, transportation, and electronics applications.
Applications include: Cold supply chains, gap filling, gasketing and sealing, LCD gaskets, shock absorption, and vibration management.
- Excellent resistance to UV, ozone, and environmental stress
- Ideal for soft yet durable environmental seals, gaskets, and thermal insulation layers
- Available in thicknesses from 0.063 in to 0.5 in
| Property | Specification |
| Backing (Carrier) Material | Soft open-cell silicone foam |
| Adhesive Material | High performance acrylic, high temperature silicone PSA, or plain |
| Density (Metric) | 240 kg/m³ |
| Density (Imperial) | 15 lb/ft³ |
| Compression Force Deflection (kPa) | 26 kPa |
| Compression Force Deflection (PSI) | 3.8 psi |
| Compression Set (22 hrs. at 100°C/50%) | 13.4–20.4% |
| Water Absorption | 0.5% (by weight) |
| Thermal Conductivity (K Value) | 0.06 |
| Tensile Strength (kPa) | 207 kPa |
| Tensile Strength (PSI) | 30 psi |
| Elongation at Break | 90% |
| Shielding Effectiveness (Average 300kHz - 2.5GHz) | |
| Product Color | Black, Red |
| Dielectric Strength | |
| Volume Resistivity | |
| Insulation Resistance | |
| Certifications | UL 94 V-0; meets FMVSS 302, ASTM E162, ASTM E662 |
| Thickness (Imperial) | 0.063-0.5" |
| Thickness (Metric) | 1.6-12.7 mm |
| Maximum Operating Temperature (Celsius) | 200°C |
| Maximum Operating Temperature (Fahrenheit) | 392°F |
| Minimum Operating Temperature (Celsius) | -55°C |
| Minimum Operating Temperature (Fahrenheit) | -67°F |
