High quality gas sealing tape. Thicker than standard PTFE tape. Helps prevent bi-metal corrosion. Suitable for natural gas, LPG and town gas threaded fittings. Complies with EN751-3: 1997. High quality gas sealing tape. Thicker than standard PTFE tape. Helps prevent bi-metal corrosion. Suitable for natural gas, LPG and town gas threaded fittings. Complies with EN751-3: 1997.