| General description: FEP is produced through the copolymerization of tetrafluoroethylene and hexafluoropropylene. Like PTFE, its carbon structure is completely surrounded by fluorine atoms. FEP is a thermoplastic which can be processed using traditional thermoplastic processing techniques such as screw extrusion, injection moulding, and blow extrusion. FEP can be thermoformed and is easy to weld. Characteristics and properties: - Extremely broad service temperature range (long-term temperatures of –190 to +205 °C)
- FEP is very tough and flexible even at low temperatures thanks to its high impact resistance
- FEP has a low permeability with regard to gases and chemicals and is subject to practically no moisture absorption (less than 0.01%)
- Excellent resistance to most chemicals and solvents except for liquid sodium, fluorine, chemicals at elevated temperatures, and certain halogen compounds
- Good weather resistance
- Good anti-adhesive properties
- Excellent dielectric properties
- The dielectric constant and loss factor of FEP are extremely low and relatively constant over a broad temperature and frequency range
- High insulation resistance
- High dielectric strength
- Flame-retardant
Information provided by Angst + Pfister |
