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 -50C to +200C and can intermittently reach temperatures up to +220C Technical Information 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/mm Physical Form Paste Substrates Ceramic, Composite, Glass, Metal: Aluminum, Metal: Steel, Plastic