Fluoropolymer Coatings
Fluoropolymer Coatings are known for their inertness to most chemicals, resistance to high temperatures, extremely low coefficients of friction and excellent dielectric properties which are relatively insensitive to temperature and power frequency. Fluoropolymers make up a family of thermoplastic resins analogous to polyethylene in which some of the hydrogen atoms attached to the carbon chain are replaced by fluorine or fluorinated alkyl groups. In some cases, other halogens such as chlorine are also part of the molecule.
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PTFE (Polytetrafluoroethylene)
•Non-stick and release
•Non-wetting
•Temperature resistant (-270°C up to +260°C)
•Low friction and abrasion resistance
•Corrosion and chemical resistance
•Anti-galling
•High dielectric strength
PFA (Perfluoroalkoxy)
•Operation up to 260°C/500°F
•Thicknesses of 1,000 micrometers
•Greater toughness than PTFE and FEP
•Excellent chemical resistance
•Fantastic non-stick properties
FEP (Fluorinated Ethylene Propylene Copolymer)
•Non-wetting
•Operation up to 205°C/400°F
•Excellent chemical resistance and non-stick properties
•Low coefficient of friction
• Dielectric and cryogenic ability
•Great release properties
ECTFE (Ethylene Chlorotrifluoroethylene Copolymer)
•Chemical and thermal resistance
•Optimum permeation resistance
•Outstanding flame resistance
•Excellent electrical insulator – Abrasion resistance
•Impact strength
ETFE (Ethylene Tetrafluoroethylene Copolymer)
•Chemical and heat resistance
•Good release properties
•First class cryogenic stability
•Low coefficient of friction
•Electrical insulating properties
•Oleophobic and hydrophobic
•High dielectric strength and low dissipation factor
•Virtually unaffected by UV or weather
PVDF (polyvinylidene fluoride)
•High heat deflection temperature
•Wide service-temperature range
•Excellent resistance to chemicals
•High resistance to thermal ageing
•Extremely good barrier characteristics against gases
and liquids
•High resistance to UV and gamma radiation
•Ebrasion and sliding-friction performance
•Physiologically safe