LOCTITE 542 is a medium strength, thixotropic anaerobic thread sealant specifically engineered for the locking and sealing of metal pipes and fittings. It is particularly suitable for fine threads found in hydraulic and pneumatic installations, preventing loosening and leakage caused by shock and vibration. This product cures when confined in the absence of air between close-fitting metal surfaces. It offers a fixture time of 20 minutes and achieves full cure in 24 hours, providing reliable sealing. It is designed for operating temperatures ranging from -55°C to +150°C and can effectively seal threads up to M26 / R3/4".