BISCO® 7430 Silicone Sponge
Rogers BISCO® 7430 Silicone Sponge is a firm-grade, closed-cell silicone sponge engineered for flame-resistant gasketing, thermal insulation, and sealing in extreme environments. Known for its excellent mechanical strength and thermal stability, BISCO 7430 delivers durable performance under compression, resists UV and ozone degradation, and meets demanding flame resistance standards. It is ideal for use in aerospace, transportation, and industrial enclosures where firmness and flame compliance are essential. This material meets BMS 1-60 Type 1, Grade C specifications.
Applications include: Gap filling, gasketing and sealing, HEV enclosures, LCDs, shock absorbers, sound blocking, spacers and bin liners, and thermal solutions.
- Supplied in sheet format with thicknesses from 1.59 mm to 12.70 mm (0.063" to 0.5")
| Property | Specification |
| Backing (Carrier) Material | Closed-cell firm-density silicone sponge |
| Adhesive Material | Optional Silicone or Acrylic PSA |
| Density (Metric) | 560 kg/m³ |
| Density (Imperial) | 35 lb/ft³ |
| Compression Force Deflection (kPa) | 96-151 kPa |
| Compression Force Deflection (PSI) | 14-22 psi |
| Compression Set (22 hrs. at 100°C/50%) | <5% |
| Water Absorption | <5% |
| Thermal Conductivity (K Value) | |
| Tensile Strength (kPa) | >1380 kPa |
| Tensile Strength (PSI) | 200 psi |
| Elongation at Break | >200% |
| Shielding Effectiveness (Average 300kHz - 2.5GHz) | |
| Product Color | Gray |
| Dielectric Strength | |
| Volume Resistivity | |
| Insulation Resistance | |
| Certifications | Passes FMVSS 302, Meets BMS 1-60 Type 1, Grade C |
| Thickness (Imperial) | 0.063-1" |
| Thickness (Metric) | 1.59-25.4 mm |
| Maximum Operating Temperature (Celsius) | 204°C |
| Maximum Operating Temperature (Fahrenheit) | 400°F |
| Minimum Operating Temperature (Celsius) | -55°C |
| Minimum Operating Temperature (Fahrenheit) | -67°F |
