Item Name: SnapSil™ TN3305
Manufacturer: Momentive Performance Materials
Technologies: One-component, low-volatile siloxane, silicone adhesive sealant
Color: Clear, white, black
Cure Type: Room temperature, moisture cure (alcohol vapor release)
Package Size: Contact to Techniq VN for details.
Shelf Life: Contact to Techniq VN for details.
SnapSil TN3305 is a one-component, low-volatility silicone adhesive sealant that cures at room temperature upon exposure to atmospheric moisture. It provides primerless adhesion to many substrates, is non-corrosive to most metals, and releases a low-odor alcohol vapor during cure. The product is flame-retardant (UL94 HB recognized) and fast-tack curing, making it suitable for electrical and electronic applications that require reliable insulation, bonding, and sealing.
Insulating adhesive seal and fixing for electrical and electronic parts.
Waterproof sealant for electrical, electronic, and communication equipment.
General adhesive for metals, glass, plastics, and other substrates.
| Property | Uncured | Cured (3 days @ 23°C, 50% RH) |
|---|---|---|
| Appearance | Flowable; clear, white, black | Elastic rubber; clear, white, black |
| Viscosity (Pa·s, 23°C) | 47 | – |
| Tack-free Time (min, 23°C) | 9 | – |
| Density (g/cm³) | – | 1.04 |
| Hardness (Type A) | – | 14 |
| Tensile Strength (MPa) | – | 1.5 |
| Elongation (%) | – | 400 |
| Adhesion Strength (MPa) | – | 1.0 |
| Volatile Siloxane (wt%) | – | 0.01 |
| Volume Resistivity (Ω·cm) | – | 2.0 × 10¹⁵ |
| Dielectric Strength (kV/mm) | – | 26 |
| Dielectric Constant (60Hz) | – | 2.7 |
| Dissipation Factor (60Hz) | – | 0.002 |
| Impurities (ppm) | Na⁺ <2; K⁺ <2; Cl⁻ <2 | – |
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