Loctite 5331 is a white, methacrylate-based pipe thread sealant designed for locking and sealing both plastic and metal pipe threads and fittings up to R3 inches. This 100ml threadlocker cures in the absence of air between close-fitting metal surfaces, effectively preventing loosening and leakage caused by shock and vibration. It is suitable for fast application in low-temperature environments, making it ideal for outdoor maintenance. With a temperature resistance ranging from -55°C to 150°C and a full cure time of 24 hours, Loctite 5331 ensures reliable, long-lasting seals. It is WRAS approved.