Loctite 567 50ml Loctite 567 is a 50 ml off-white pipe Thread Sealant designed for the locking and sealing of metal conical threads and fittings. The tight fit cures when trapped in the absence of air between metal surfaces and prevents loosening and leaks from shock and vibration, the high lubricating properties of this compound prevent friction on stainless steel, aluminum and all other metal pipe threads and fittings. 1.1 Specific gravity at 25°C slight fragrance >300°F Boiling point range