Loctite 5940 is a 1-part, room temperature vulcanizing acetoxy silicone sealant ideal for sealing and bonding. It adheres to metal, glass, ceramics, and plastics, forming a tough, waterproof, and oil-resistant bond. With temperature resistance from -50C to +200C, it's perfect for demanding environments. Solvent-free and crack-resistant. Features and Benefits Solvent-free for safer use Outstanding resistance to ageing, shrinkage, cracking, and discolouring Cures with moisture exposure, forming a tough, flexible, waterproof, oil-resistant silicone rubber bond Ideal for applications with an operating range of -50C to +200C, and short-term exposure up to +220C