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TSE397-C (Tube)
GEE151596
TSE397 (Clear) – Fast-Cure, Non-Corrosive Silicone Adhesive Sealant for Electronics & General Industrial Bonding
TSE397 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 a wide range of substrates without corroding sensitive metals like copper or brass.
Unlike standard acetoxy-cure silicones, TSE397 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 metal compatibility is critical. With a tack-free time of just 10 minutes, TSE397 delivers rapid handling strength while maintaining long-term durability across extreme temperatures.
Key Features
- Non-corrosive to copper, brass, and other sensitive metals – MIL-A-46146B corrosion test approved
- Fast cure: Tack-free in 10 minutes at 23°C / 50% RH
- Primerless adhesion to metals, glass, ceramics, and many plastics
- Wide service temperature range: –55°C to 200°C (–67°F to 392°F)
- Flowable paste consistency – suitable for precise bead application on horizontal and vertical 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 enclosed or occupied workspaces
Typical Applications
- Bonding and sealing of electronic components, PCBs, and communication modules
- Waterproof sealing of enclosures for electrical, automotive, and industrial equipment
- General-purpose adhesive for metal-to-glass, metal-to-plastic, and ceramic assemblies
- Applications requiring fast handling strength without post-cure heating
Technical Notes
- Uncured viscosity: 50 Pa·s (500 P)
- Cured hardness: 13 Shore A (very soft and flexible)
- Tensile strength: 1.2 MPa (12 kgf/cm²)
- Elongation: 360%
- Maximum recommended thickness: 6 mm (¼ in.) – standard for moisture-cure silicones
- Cure by-product: Alcohol vapour (non-corrosive)
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 multiple formats and colours to suit production needs:
- 100 g collapsible tubes
- 333 ml caulking cartridges
- Color options: Black (-B), Clear (-C), White (-W)
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TSE397 (Clear) – Fast-Cure, Non-Corrosive Silicone Adhesive Sealant for Electronics & General Industrial Bonding
TSE397 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 a wide range of substrates without corroding sensitive metals like copper or brass.
Unlike standard acetoxy-cure silicones, TSE397 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 metal compatibility is critical. With a tack-free time of just 10 minutes, TSE397 delivers rapid handling strength while maintaining long-term durability across extreme temperatures.