Loctite 577 is a high-performance, medium strength thread sealant designed for the locking and sealing of metal pipes and fittings. This thixotropic, anaerobic sealant cures in the absence of air between close-fitting metal surfaces, effectively preventing leakage and loosening caused by vibration and shock. It offers an instant low-pressure seal and is ideal for fast applications, even at low temperatures. Loctite 577 will not creep, shrink, or shred, ensuring a durable seal. It is suitable for use on coarse threads up to M80 (3 inches) and provides excellent resistance to fuels, oils, coolants, and hydraulic fluids. This 50ml tube is a reliable solution for various industrial and maintenance applications.