Loctite 55 has been designed to lock and seal metal and plastic pipes and fittings. It needs no time to cure and results in an immediate, full pressure seal. This is a general purpose, threaded pipe and fitting sealant that provides a non-curing, immediate, full-pressure seal for a quick, easy, and reliable seal. It is WRAS listed, meets BS 6920 for potable water (0808533), and has DVGW/KTW approval for gas and potable water.