The Loctite 142454 577 is a genuine Loctite thread sealant designed for reliable locking and sealing of metal pipes, fittings, and cylindrical metal assemblies. This 50ml yellow methacrylate-based sealant cures in the absence of air between close-fitting metal surfaces, effectively preventing loosening and leakage caused by shock and vibration. Its thixotropic properties minimize liquid product migration after application. Loctite 577 offers robust cure performance, tolerating minor contaminations from industrial oils and curing on passive substrates like stainless steel and plated surfaces. It provides medium strength, a fixture time of 10 minutes, and a full cure in 24 hours, suitable for temperatures from -55°C to +150°C and thread sizes up to M80/R3".