Saint-Gobain® Norseal® 515GF Silicone Foam Tape

Saint-Gobain® Norseal® 515GF Silicone Foam Tape is a flame-retardant, lightweight tape made from F-15 modified silicone foam and paired with a film-supported acrylic adhesive. Designed for use in aerospace, electronics, and industrial sealing applications, 515GF offers a unique balance of compressibility, weather resistance, and dimensional stability. Its closed-cell structure resists water, air, and dust ingress, while maintaining excellent thermal and environmental performance across a broad temperature range.

Applications include: Military, drones, GPS, walkie talkies, environmental gasketing.

Technical Datasheet
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  • Durable performance in harsh environments (UV, ozone, moisture)
  • Ideal for gasketing, thermal insulation, and sealing in compact or weight-sensitive assemblies
  • Available from thickness ranging from 0.063 in to 0.25 in
Property Specification
Backing (Carrier) Material F-15, medium soft flame-retardant silicone foam
Adhesive Material PET Reinforced Acrylic
Density (Metric) 240 kg/m³
Density (Imperial) 15 lb/ft³
Compression Force Deflection (kPa) 41.3 kPa
Compression Force Deflection (PSI) 6 psi
Compression Set (22 hrs. at 100°C/50%) 10%
Water Absorption
Thermal Conductivity (K Value)
Tensile Strength (kPa) 172
Tensile Strength (PSI) 25 psi
Elongation at Break 75%
Shielding Effectiveness (Average 300kHz - 2.5GHz)
Product Color Charcoal Gray
Dielectric Strength
Volume Resistivity
Insulation Resistance
Certifications UL 94V-0 rated
Thickness (Imperial) 0.0625-0.1875"
Thickness (Metric) 1.59-4.7625 mm
Maximum Operating Temperature (Celsius) 105°C
Maximum Operating Temperature (Fahrenheit) 221°F
Minimum Operating Temperature (Celsius) -30°C
Minimum Operating Temperature (Fahrenheit) -22°F