... gas,water,petroleum oils,liquids and air... Professional PTFE THREAD SEAL tapes mainly for natural gas,water,petroleum oils,liquids and ... , ACID-RESISTANCE AND CORROSION RESISTANCE, USING IN OXIDIZING AGENT FOR A LONG PERIOD. P.T.F.E. THREAD SEAL TAPE MAIN TECHNICAL INDEXES:HEAT RESISTANCE:+370COLD RESISTANCE ... ELONGATION:≥25%IDENTITY:INSULATION, CORROSION RESISTANCE ANTI-ANGING PTFE THREAD SEAL TAPE