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.
Please see below for a sampling of data for this material formulation. For detailed material information and to use advanced features such as filtering, visit the BISCO® Product Properties Guide.
| HT-800 | HT-820 | HT-870 | |
|---|---|---|---|
| Minimum Thickness (mm) | 0.79 | .79 | 1.60 |
| Maximum Thickness (mm) | 12.70 | 6.35 | 12.70 |
| Density (kg/m3) | 352 | 384 | 240 |
| Compression Force Deflection (kPa) | 67 | 106 | 28 |
| Compression Set (%) | <5 | <5 | <5 |
| Water Absorption (%) | .05 | 0.5 | <5 |
| UL94 V-0 (Pass/Fail) | Pass | Pass | Pass |
| UL94 HF-1 (Pass/Fail) | Pass | Pass | Pass |
| Min Operating Temp (°C) | -55° | -55° | -55° |
| Max Operating Temp (°C) | 200° | 200° | 200° |
View current applications of this product.
