TSE392-C
GEE22387
TSE392 (Clear) – Fast-Cure, Non-Corrosive Silicone Adhesive Sealant for Electronics and Industrial Bonding
TSE392 is a one-component, ready-to-use, fast-curing silicone adhesive sealant that cures at room temperature upon exposure to atmospheric moisture, forming a flexible, elastic silicone rubber with excellent adhesion to metals, glass, ceramics, and many plastics without corroding sensitive metals like copper or brass.
Unlike standard acetoxy-cure silicones, TSE392 utilises an alcohol-based (alkoxy) cure system, releasing non-corrosive alcohol vapours during cure. This results in a low-odour, non-pungent process ideal for electronics assembly, indoor environments, and applications where long-term metal compatibility is critical. With an ultra-fast tack-free time of just 5 minutes, TSE392 delivers rapid initial handling strength while maintaining reliable electrical insulation and environmental protection.
Key Features
- Non-corrosive to copper, brass, and other sensitive metals – MIL-A-46146B corrosion test approved
- Ultra-fast cure: Tack-free in 5 minutes at 23°C / 50% RH
- Primerless adhesion to a wide range of substrates, including metals, glass, and many engineering plastics
- Wide service temperature range: –55°C to 200°C (–67°F to 392°F)
- Thixotropic paste consistency – stays in place on horizontal, vertical, and overhead surfaces
- Excellent electrical insulation:
- Dielectric strength: 22 kV/mm
- Volume resistivity: 2.0 × 10¹⁵ Ω·cm
- UL 94 HB recognised (File No. E56745)
- Low odour – ideal for occupied or enclosed workspaces
Typical Applications
- Bonding and sealing of printed circuit boards, sensors, and semiconductor packages
- Waterproof sealing of electrical enclosures, connectors, and communication equipment
- General-purpose adhesive for metal-to-glass, metal-to-plastic, and ceramic assemblies
- Applications requiring rapid assembly and early handling strength without post-cure heating
Technical Notes
- Tensile strength: 1.6 MPa (16 kgf/cm²)
- Elongation: 430% – provides flexibility under thermal cycling
- Cured hardness: 26 Shore A
- Adhesive strength (Al lap shear): 1.3 MPa
- Maximum recommended thickness: 6 mm (¼ in.) – standard for moisture-cure silicones
- Cure by-product: Alcohol vapour (non-corrosive, low odour)
Certifications & Compliance
- MIL-A-46146B – Passes corrosion test for electronics-grade silicones
- UL 94 HB – Recognised for flammability (File No. E56745)
Packaging Options
- Available in clear in 100 g collapsible tubes (cases of 20) & 333 ml caulking cartridges (cases of 10)
Processing Recommendations
- Apply to clean, dry surfaces – no primer required for most substrates
- Full cure (3 mm thickness): ~24–48 hours at 23°C / 50% RH
- Avoid use with polyethylene, polypropylene, or PTFE without surface treatment or compatible primer
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TSE392 (Clear) – Fast-Cure, Non-Corrosive Silicone Adhesive Sealant for Electronics and Industrial Bonding
TSE392 is a one-component, ready-to-use, fast-curing silicone adhesive sealant that cures at room temperature upon exposure to atmospheric moisture, forming a flexible, elastic silicone rubber with excellent adhesion to metals, glass, ceramics, and many plastics without corroding sensitive metals like copper or brass.
Unlike standard acetoxy-cure silicones, TSE392 utilises an alcohol-based (alkoxy) cure system, releasing non-corrosive alcohol vapours during cure. This results in a low-odour, non-pungent process ideal for electronics assembly, indoor environments, and applications where long-term metal compatibility is critical. With an ultra-fast tack-free time of just 5 minutes, TSE392 delivers rapid initial handling strength while maintaining reliable electrical insulation and environmental protection.