FEP Fluorinated Ethylene Propylene
FJP pellets · FJC concentrated dispersion
FEP is a copolymer of tetrafluoroethylene and hexafluoropropylene. It retains PTFE's chemical and electrical performance while being melt-processable and transparent — ideal for high-temperature cable insulation, precision tubing, heat-shrink tube and anti-corrosion linings.
Technical Parameters
Note: the parameters above are typical values for the standard grades of each series and are for selection reference only; actual specifications follow the official TDS for the selected grade and the agreed contract.
FEP Pellets
Translucent pellet resin graded by melt flow rate — for cable insulation, tubing and pump/valve liners.
| Property | Nominal value |
|---|---|
| Grades | FJP-1 (T1 810/610) / FJP-2 (T2 820/620) / FJP-3 (T3 830/630) / FJP-4 (640) |
| Appearance | Lentil or cylindrical pellets |
| Melt flow rate g/10min | 15–32 / 6.0–14 / 2.1–5.9 / 0.8–2.0 |
| Tensile strength MPa ≥ | 20.0 / 18.0–16.0 / 24.0–19.0 / 28.0–23.0 |
| Elongation at break % ≥ | 300 / 275 / 300 / 275 |
| Melting point °C | 260±15 / 265±15 |
| Volatile % ≤ | 0.20 / 0.30 / 0.10 / 0.30 |
| Standard specific gravity | 2.12–2.17 |
| Dielectric constant (10⁶Hz) ≤ | 2.15 |
| Dissipation factor (10⁶Hz) ≤ | 7.0×10⁻⁴ |
| Packing | 25±0.2 kg (double bag or reinforced bag in carton) |
FEP Concentrated Dispersion
FEP concentrated dispersion for coating, impregnation, printed wiring boards and heat-resistant PTFE-impregnated glass cloth; also a primer/adhesive layer for metal substrates and glass-fibre composites.
| Property | Nominal value |
|---|---|
| Grades | FJC-R0610 / FJC-R0620 / FJC-RT0680 / FJC-RT0690 / FJC-RT0780 |
| Appearance | Pale white or yellowish translucent liquid |
| pH | 7.5–10.5 / 8.0–10.0 / 7.5–10.5 / 8.0–10.0 / 8.0–10.0 |
| Solid content % | 50±2 / 60±2 |
| Surfactant % | 5±2 |
| Packing | 25 kg/drum, 1000 kg/drum |
Applications
- High-temperature wire insulation and jacketing
- Data and telecommunication cables
- Heat-shrink and precision tubing
- Anti-corrosion and pump/valve linings
- Non-stick and insulating coatings
Packaging & Storage
Pellets 25±0.2 kg/bag; dispersion 25 kg and 1000 kg drums (protect from frost and sun; shake every 3 months).
Not classified as hazardous. Avoid heavy shaking, high temperature and sunlight during transport and storage; prevent agglomeration and contamination.
Technical Downloads
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