Black, 1-part, room temperature vulcanizing acetoxy silicone paste sealant.
LOCTITE® SI 5940 is a black, 1-part, room temperature vulcanizing acetoxy silicone paste sealant. It is primarily used as a general-purpose sealing and bonding agent, space-filling rubber adhesive or formed-in-place gasket. It adheres to clean metal, glass, most non-oily woods, silicone resin, vulcanized silicone rubber, ceramic, natural and synthetic fibre and many painted and plastic surfaces.
- Solvent-free
- Excellent resistance to ageing, shrinkage, cracking and discoloring
- Cures on exposure to moisture in the air to form a tough, flexible, waterproof, oil-resistant silicone rubber bond
- Typically used in applications with an operating range of -50°C to +200°C and can intermittently reach temperatures up to +220°C
| Chemical Basis / Base | Acetoxy Silicone |
| Color | Black |
| Cure Speed vs Time | 6.0 mm |
| Extrusion Rate | 200.0 g/min. |
| Fixture Time | 30.0 min. |
| Gap Fill | 6.0 mm |
| Key Characteristics | Thixotropic |
| Lab Shear Strength | 1.3 N/mm² |
| Physical Form | Paste |
| Substrates | Ceramic, Composite, Glass, Metal: Aluminum, Metal: Steel, Plastic |
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