Plumbers hemp is used in plumbing to seal pipes, fittings or thread to avoid leaks. It is an alternative to PTFE tape and is widely used as a sealer on pipe joints. It can be used to seal heavier gauge pipework, but must be used in conjunction with others. Discover plumbers hemp. It is a game-changer in the world of home maintenance. Hemp is versatile and durable. It seals leaks repairs pipes and safeguards your plumbing. A sustainable and reliable solution for every home.