EMI 1320 Silicone Sponge Tape

EMI 1320 Silicone Sponge Tape is a medium-density, closed-cell expanded silicone sponge tape engineered for high-performance gasketing, insulation, and cushioning in demanding environments. Known for its durability and resistance to temperature extremes, UV, ozone, and solvents, EMI 1320 provides reliable sealing and protection in both industrial and food-contact applications. Its excellent compression set resistance and flame-retardant properties make it well-suited for aerospace, electronics, and environmental sealing tasks.

Applications include: High temperature gaskets, flame retardant cushions, solvent resistant weather seals, and food contact applications.

Technical Datasheet
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  • Ideal for high temperature gasketing, flame-retardant cushioning, and weather sealing
Property Specification
Backing (Carrier) Material Medium Firm closed cell expanded silicone sponge
Adhesive Material Optional Silicone or Acrylic PSA
Density (Metric) 464 kg/m³
Density (Imperial) 29 lb/ft³
Compression Force Deflection (kPa) 76 kPa
Compression Force Deflection (PSI) 11 psi
Compression Set (22 hrs. at 100°C/50%) 25%
Water Absorption <3% (by weight)
Thermal Conductivity (K Value) 0.44
Tensile Strength (kPa)
Tensile Strength (PSI)
Elongation at Break 150%
Shielding Effectiveness (Average 300kHz - 2.5GHz)
Product Color
Dielectric Strength
Volume Resistivity
Insulation Resistance
Certifications Meet the requirements of FAR 25 / JAR 25 / CS 25 Appendix F, Part 1, (a)(1)(v), FMVSS 302, ASTM D1056 Type 2, MIL-R-46089, FDA 21 CFR 177.2600 compliant
Thickness (Imperial)
Thickness (Metric)
Maximum Operating Temperature (Celsius) 232°C
Maximum Operating Temperature (Fahrenheit) 450°F
Minimum Operating Temperature (Celsius) -73°C
Minimum Operating Temperature (Fahrenheit) -100°F
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