PTFE sheet :
PTFE has the highest melting point and is capable of continued service at -180-260 C. PTFE is a melt processible resin capable of continued service at 204 C. PTFE products such as PTFE gaskets are used as gasket and packing materials in chemical processing equipment; as electrical insulation for maximum reliabillity; and in bearings, seals, piston rings and other mechanical applications, especially those require anti-stick characteristics. PTFE has excellent thermal and electrical insulation properties. it has a low coefficient of friction.
High and low temperature resistance(-180ºC~+260 ºC)
Corrosion resistance(strong acid, strong alkali and aqua regia etc)
Non toxic etc
Widely used in Gasket,Valve packing’s,Diaphragms and mechanical seals .
linings of pipes ,valves ,Pumps and vessels .Chemical,Machinery fields .Electrical insulation parts .
|working Temp.||ASTM D648||ºC||-180 ~260|
|Deformation % 73 0F ,1500 psi 24 hours||D621||N/A||4-8|
|Deformation % 1000F,1500psi,24hours||D621||N/A||10-18|
|Deformation % 2000F,1500psi 24 hours||D621||N/A||20-52|
|Coefficient of Friction||N/A||0.04|
|Coeffcient of thermal expansion 73 0F||D696||In./In./Ft.||5.5*10.3|
|Coefficient of thermal conductivity||*5||Btu/hr/ftz||1.7|
|PV at 900 ft./min||N/A||2500|
|PTFE was widely used as resistant high & low temperature material,Corrosion-resistant materials,Insulation materials in the atomic energy,defense,aerospace,electronics,electrical,chemical industry,Machinery,instruments,meters,construction,textile,metal,surface treatment,pharmaceutical,medical.food and metallurgical smelting,and become irreplaceable products.|