... .F.E thread seal is the thread sealing tape which is widely used in applicable strong oxidant, strong acid, oxygen, gas, high ... °C to +370°C.4 P.T.F.E tape is used in hardware, construction, chemical and electronic, national defence, transport, medicine ... .P.T.F.E thread seal tape is an ideal material for pipe fittings,widly applied in contruction machinery, chemical industrial and ...