Chesterton 800 GoldEnd Tape Chesterton 800 GoldEnd Tape PTFE Sealing characteristics: Option: PTFE, expanded Description: 800 GOLDEND BAND, produced by A.W. Chesterton company, is heavy duty and high density expanded PTFE sealing tape. The construction allows resistance to tearing and allows printing. IT can be used on plastic or metal thread, bolts or pipes.