The LOCTITE® 55 Pipe Cord™ is a general purpose, threaded pipe and fitting sealant. Stored on a reel within a smart dispenser, this cord is wound onto the threads of the pipe. Easy and convenient to use, the LOCTITE® 55 Pipe Cord™ is recommended for sealing metal and plastic tapered pipe threads and fittings up to 4" NPT (National Pipe Thread) for use in industrial applications in aqueous and non-aqueous fluids.