Fluoropolymer Grades & Key Properties
ECTFE EthyleneChloroTriFluoroEthylene
- Common Trade Names (Halar@)
ECTFE has excellent corrosion and chemical resistance and performs in many applications up to 300°F (149°C). Made from the toughest of all fluoropolymers, this material has nylon-like durability with excellent mechanical properties and impact strength. In addition, it has extremely low permeability to liquids, gases, and vapors. ECTFE is resistant to most chemicals (including acids, alkalines, and organic solvents) except hot amines and ketones.
- Excellent Impact Resistance & High Purity
- Most Abrasion Resistant Fluoropolymer
- Temp. Range Of -105°F To +300°F (-76°C To +150°C)
ETFE Ethylene TetrafluoroEthylene
- Common Trade Name (Tefzel®)
ETFE is a fluorocarbon-based polymer. ETFE is a modified copolymer of ethylene and tetrafluoroethylene that is often used in applications that demand mechanical toughness with thermal and chemical resistance.
- Excellent Chemical Resistance
- Good Permeability Resistance
- Temp. Range Of -150°F To +300°F (-101°C To +150°C)
FEP Fluorinated Ethylene Propylene
FEP possesses a very high degree of stress crack resistance, a low coefficient of friction, exceptional dielectric properties, heat resistance, retention of properties after service at 400°F (204°C) with useful properties at -454°F (-270°C), and meets FDA 21CFR.177.1550. FEP has high transparency (with good transmittance of Ultraviolet and visible wavelengths.) It has long term weatherability and excellent resistance to ozone, sunlight and weather. FEP offers the lowest refractive index of all thermoplastics with low light reflection (the same as water.)
- Excellent Optical Characteristics
- Outstanding Weather Resistance
- Temp. Range Of -418°F To +400°F (-250°C To +204°C)
PCTFE Kel F
Common Trade Name (The Kel-F® brand is a registered trademark of 3M, but they discontinued production in 1995. The only remaining brand, Neoflon ®, is made by Daikin Industries of Japan. This PCTFE resin has the same chemical structure and properties as the original Kel-F® brand material.)
PolyChloroTriFluoroEthylene is a fluorocarbon-based polymer and is commonly abbreviated PCTFE. PCTFE offers the unique combination of physical and mechanical properties, nonflammability, chemical resistance, near zero moisture absorption, and excellent electrical properties. These characteristics cannot be found in any other thermoplastic fluoropolymer with a useful temperature range of -400°F to +400°F (-240°C to +204°C). PCTFE also has extremely low outgassing (0.01% TML, 0.00% CVCM, 0.00% WVR when tested per ASTM E-595-90), so it is suitable for use in aerospace and flight applications.
PFA Perfluoroalkoxy
PerFluoroAlkoxy (PFA) offers similar properties to FEP, but is considered more of a premium resin. PFA is preferred when extended service is required in hostile environments involving chemical, thermal, and mechanical stress. PFA offers high melt strength, stability at high processing temperatures, excellent crack and stress resistance, a low coefficient of friction, and more than 10 times the Flex life of FEP. It has high resistance to creep and retention of properties after service at 500°F (260°C), with useful properties at -320°F (95°C). PFA also meets FDA 21CFR.177.1550.
- Excellent Flex Life
- Low Coefficient of Friction
- Temp. Range Of -320°F To +500°F (-195°C To +260°C)
PTFE Polytetrafluoroethylene
- Common Trade Name (DuPont™ Teflon®)
PolyTetraFluoroEthylene is a fluorocarbon-based polymer and is commonly abbreviated PTFE. While the most famous brand of PTFE is manufactured only by DuPont, several other manufacturers make their own brands of PTFE which can often be used as substitute material. PTFE has outstanding chemical resistance, a wide operating temperature range from cryogenic to 500F, resistance to weathering, high impact strength, low friction, electrical and thermal insulation, and self-lubricating properties.
- Very low Coefficient of Friction
- Outstanding Chemical Resistance
- Temp. Range Of -328°F To +500°F (-200°C To +260°C)
PVDF Polyvinylidene Fluoride
- Common Trade Name (KYNAR® 740)
Kynar® is a high molecular weight crystalline thermoplastic polymer of vinylidene fluoride -- PolyVinyliDene Fluoride or PVDF. Kynar® has excellent corrosion and chemical resistance and performs in many applications up to 300°F (149°C). It is used extensively in chemical processing applications because of its unique combination of properties. Kynar® PVDF possesses excellent chemical resistance, is tough and durable, and is easily fabricated into finished parts.
- High Purity
- Outstanding UV Resistance
- Temp. Range Of -58°F To +300°F (-50°C To +149°C)
![]()
