PTFE was originally developed for aerospace application […]
PTFE was originally developed for aerospace applications, but soon found home in countless industrial applications. The unique properties of PTFE include: chemical inertness, very low coefficient of friction, high heat resistance Suitable for cold environment. The fluoroplastic industry began in 1938. The industry has commercialized seven fluoroplastics: FEP, PVDF, PFA, ETFE, PCTFE, ECTFE and PVF. We have PTFE sheet, bar, film and tubing for all applications.
PVF has excellent weather resistance and good wear resistance and stain resistance. It is used as a surface film for industrial, architectural and decorative building materials.
PTFE can not be melt processed. The resin must be compressed and then sintered to produce useful plastic.
FEP method. It is squeezed out and injection molded. It has the chemical resistance of PTFE, mechanical and electrical properties, but the temperature range is narrower - the maximum temperature of 400 ° F. Chemical resistant tanks and containers commonly used in chemical corrosive chemical industries.
PVDF is not a processable fluoropolymer that can be injected and compression molded and screw extruded. Better than PTFE, FEP and PFA, more resistant to cold flow. It has a lower useful temperature range. The glass backing PVDF plate is made of a liner for the ship like FEP. PVDF pipes and fittings are one of the most economical and chemically resistant high temperature solid piping systems.
PFA is also meltable. Its properties are characteristic of PTFE, including the resistance of almost all chemicals, the useful temperature range of PTFE, weather resistance, low coefficient of friction and excellent electrical insulation properties. However, it is more expensive than PTFE and FEP resins.
ETFE is a copolymer of ethylene and tetrafluoroethylene and is easily processed by conventional methods. The highest operating temperature is 300 ° F, but has stronger strength and stiffness than PTFE, FEP and PFA. ETFE also has excellent impact strength.
PCTFE is meltable. Within its operating temperature range, it has greater tensile and compressive strength than PCTFE, FEP or PFA. Stress cracking occurs at high temperatures. It does not have the solvent resistance of PTFE, FEP, PFA or ETFE. However, its radiation resistance is superior to any other.
ECTFE is a copolymer of ethylene and PCTFE. It can be melted and processed. Has excellent electrical insulation properties. At ambient temperature, its mechanical properties are comparable to those of nylon 6. It has excellent impact resistance at ambient and sub-ambient temperatures. It ranges from -80 to + 300 ° F.