BISCO® BF-1000 Extra Soft Silicone Foam

Rogers BISCO® BF-1000 Extra Soft Silicone Foam is an ultra-compressible, open-cell silicone foam designed for applications requiring low closure force, gentle gasketing, and high durability. Its extra-soft construction delivers exceptional cushioning, vibration isolation, and environmental sealing performance while resisting UV, ozone, and extreme temperatures. BF-1000 is an ideal choice for outdoor enclosures, electronics protection, and applications needing long-term performance with minimal gasket stress.

Applications include: Active safety, cold supply chains, gap filling, gasketing and sealing, LCD gaskets, shock absorption, and vibration management.

Technical Datasheet
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  • Resistant to UV, ozone, and extreme temperatures
  • Ideal for sealing, cushioning, and vibration control in sensitive or delicate assemblies
  • Available in thicknesses from 0.063 in to 1.0 in
Property Specification
Backing (Carrier) Material Extra-soft open-cell silicone foam
Adhesive Material High performance acrylic, high temperature silicone PSA, or plain
Density (Metric) 192 kg/m³
Density (Imperial) 12 lb/ft³
Compression Force Deflection (kPa) 7–35 kPa
Compression Force Deflection (PSI) 1–5 psi
Compression Set (22 hrs. at 100°C/50%) 1.70%
Water Absorption 1.4% (by weight)
Thermal Conductivity (K Value) 0.048
Tensile Strength (kPa) 262 kPa
Tensile Strength (PSI) 38 psi
Elongation at Break 86%
Shielding Effectiveness (Average 300kHz - 2.5GHz)
Product Color White, Gray, Black
Dielectric Strength
Volume Resistivity 72 V/mil
Insulation Resistance 10¹⁴ ohm-cm
Certifications UL 94 V-0 and HF-1; meets FMVSS 302, FDA 21 CFR 177.2600 compliant (white color only)
Thickness (Imperial) 0.063-1.0"
Thickness (Metric) 1.59-25.4 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