Item Name: TSE3331
Manufacturer: Momentive Performance Materials
Technologies: Two-component, heat-curing liquid silicone rubber compound with thermal conductivity and flame retardancy
Color: Dark Gray (mixed)
Cure Type: Heat cure (100–200°C, rapid cure)
Package Size: Contact to Techniq VN for details.
Shelf Life: 12 months
TSE3331 is a two-component, heat-curing silicone rubber compound designed for potting and encapsulation where flame retardancy and thermal conductivity are critical. It provides excellent UL 94 V-0 flammability performance, stable dielectric properties across a broad temperature range, and superior thermal conductivity compared to conventional silicone encapsulants. Supplied in matched 1:1 kits by weight, it offers primerless adhesion to many substrates and an extended catalyzed room-temperature work life.
Potting and encapsulation of electronic components
Flame-retardant applications requiring UL 94 V-0 performance
Thermal management for power transistors, diodes, rectifiers, and heat-generating parts
Enclosed assemblies or deep-section encapsulation due to low shrinkage and non-exothermic cure
Industrial, automotive, and electronic systems operating from -55°C to 200°C
| Property | Unit | Value |
|---|---|---|
| Uncured Properties | ||
| Color | – | TSE3331A: Dark Gray, TSE3331B: White |
| Viscosity | cps | 4100 (A), 3500 (B) |
| Uncured Properties (mixed 1:1) | ||
| Color | – | Dark Gray |
| Consistency | – | Easily Pourable |
| Viscosity | cps | 3500 |
| Work Time @ 25°C | hrs | 8 |
| Cured Properties (1 hr @ 120°C) | ||
| Specific Gravity | – | 1.51 |
| Hardness, JIS A | – | 60 |
| Tensile Strength | kgf/cm² (psi) | 30 (426) |
| Elongation | % | 50 |
| Tear Strength | kgf/cm (ppi) | 3.4 (19) |
| Linear Shrinkage | % | 1.2 |
| Flammability | – | UL 94 V-0 (1.00mm / 0.040 in) |
| Electrical (1.9mm thick) | ||
| Dielectric Strength | kV/mm (V/mil) | 26 (661) |
| Dielectric Constant @ 60 Hz | – | 3.4 |
| Dissipation Factor @ 60 Hz | – | 0.017 |
| Volume Resistivity | ohm·cm | 2.0×10¹⁴ |
| Thermal | ||
| Useful Temperature Range | °C (°F) | -55 to 200 (-67 to 392) |
| Thermal Conductivity | W/m·K | 0.63 |
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