Genuine Loctite LC2069180 518 Flexible Gasket, a medium-strength anaerobic gasketing product supplied in a 50ml tube. This sealant is engineered to cure when confined between close-fitting rigid metal surfaces, such as iron, aluminum, and steel flanges, in the absence of air. It effectively fills gaps up to 0.25mm, providing resistance to low pressures immediately after assembly. Loctite 518 improves the load-carrying and transmission capabilities of the flange face while eliminating corrosion and fretting. It operates within a wide temperature range of -55°C to +150°C and is colored red.