Saint-Gobain® Norseal® 10400M Silicone Sponge Tape
Saint-Gobain® Norseal® 10400M Silicone Sponge Tape is a flame-retardant, medium-density silicone sponge tape designed for reliable sealing and protection in harsh environments. With its closed cell structure this foam offers excellent weather, UV, and ozone resistance while maintaining long-term flexibility and compression recovery. Engineered to meet UL 94 V-0 standards, 10400M is ideal for critical gasketing applications in electrical enclosures, outdoor signage, and other equipment requiring environmental sealing and fire safety compliance. Available with either a high temperature silicone or aggressive acrylic PSA.
Applications include: Enclosures and ventilation systems, filtration seals, airline bulkhead insulation gasketing, electric meters, lighting gaskets, weatherproofing, gasketing and sealing, and applications requiring Stringent flame ratings.
- Excellent long-term compression rebound and UV/ozone resistance
- Low outgassing and closed-cell structure provide durable dust, moisture, and weather seals
- Available in .062″ to .50″ (1.6–12.7 mm) thicknesses
- Ideal for sealing NEMA/IP-rated enclosures, outdoor equipment, telecom cabinets, and rugged industrial applications
| Property | Specification |
| Backing (Carrier) Material | Closed-cell silicone sponge, medium Firm (R10400M) |
| Adhesive Material | Unsupported Transfer Acrylic PSA |
| Density (Metric) | 560 kg/m³ |
| Density (Imperial) | 35 lb/ft³ |
| Compression Force Deflection (kPa) | 68.9 kPa |
| Compression Force Deflection (PSI) | 10 psi |
| Compression Set (22 hrs. at 100°C/50%) | 10% |
| Water Absorption | 1% |
| Thermal Conductivity (K Value) | 0.14 |
| Tensile Strength (kPa) | 518 kPa |
| Tensile Strength (PSI) | 75 psi |
| Elongation at Break | 125% |
| Shielding Effectiveness (Average 300kHz - 2.5GHz) | |
| Product Color | Blue/Gray |
| Dielectric Strength | 145 V/mil |
| Volume Resistivity | 10¹⁵ |
| Insulation Resistance | |
| Certifications | UL 94 V‑0 certified, Capable of meeting AMS 3195, ASTM D6576 Type 2, Grade B, and Grad C, Grade 2/3 |
| Thickness (Imperial) | 0.063-0.5" |
| Thickness (Metric) | 1.59-12.7 mm |
| Maximum Operating Temperature (Celsius) | 150°C |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Minimum Operating Temperature (Celsius) | -20 °C |
| Minimum Operating Temperature (Fahrenheit) | -4°F |
