Extra heavy, full density Teflon PTFE tape for gas lines. For lines carrying natural gas, propane, butane, water, oil and chemical installations. Use on pipe, conduit, valves, bolts, anything with a thread. Permits easy disassembly. Use on plastic, stainless steel, aluminum and all metals, ceramic, synthetic rubber, monel and carbon pipe. Pressure rating 10,000 PSI. .0035 mil thick. Temperature range -450 to +500 F. Meets Federal Specification T-27730A. UL listed. Yellow finish. Size roll 1/2" x 260". Carded.