• ✅ Outstanding comprehensive fluoroplastic performance: Copolymer of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP), with excellent thermal stability, outstanding chemical inertness, superior electrical insulation and extremely low friction coefficient.
• ✅ Thermoplastic processable: Can be processed by conventional thermoplastic methods including extrusion, compression molding and injection molding, much easier to process than PTFE, suitable for continuous industrial production.
• ✅ Full grade matrix for all scenarios: Covers low MFR compression molding grade, medium MFR conventional extrusion grade and high MFR high-speed extrusion grade, matches different production processes and product performance requirements.
• ✅ UL certified reliable quality: Standard grades are UL registered, meets strict safety standards of wire and cable industry, supports downstream product certification and market access.
• ✅ Excellent high and low temperature resistance: Maintains stable mechanical and electrical properties in a wide temperature range, suitable for long-term service under extreme temperature working conditions.
• ✅ Strong chemical corrosion resistance: Resistant to almost all strong acids, strong bases, organic solvents and oxidizing agents, ideal for anti-corrosion lining of pumps, valves, pipelines and chemical equipment.
• ✅ Superior dielectric performance: Low dielectric constant and low dielectric loss, especially high frequency grades maintain stable electrical properties under high frequency conditions, perfect for 5G communication cables.
• ✅ Excellent weathering and aging resistance: Outstanding weather resistance, UV resistance and atmospheric aging resistance, no performance degradation after long-term outdoor exposure, service life up to decades.
• ✅ High purity medical grade available: Low impurity high purity grades can be used for medical device components such as I.V. catheters and surgical tubing, meets biocompatibility requirements.
• ✅ Stable large-scale supply: Mature production technology with 3,000 MT annual capacity, stable batch quality, supports long-term stable supply for large downstream manufacturers.

Full Grade Specification Table

Fluorinated Ethylene-Propylene Resin (FEP, CAS 25067-11-2) is a thermoplastic fluoropolymer copolymerized from tetrafluoroethylene (TFE) and hexafluoropropylene (HFP).

It inherits most excellent properties of PTFE, such as outstanding chemical inertness, high and low temperature resistance, excellent electrical insulation and low friction coefficient, while it can be processed by conventional thermoplastic molding methods, greatly improving processing efficiency. The product provides a complete grade matrix from low MFR compression molding grade to high MFR high-speed extrusion grade, with UL certification for standard grades. It is widely used in wire and cable insulation, industrial anti-corrosion lining, heat shrink tubing, FEP film, medical device tubing and high frequency communication cables, and is one of the most widely used high-performance fluoroplastics in industry.

• Fluorinated Ethylene Propylene Copolymer
• FEP Fluoroplastic Resin
• Perfluoroethylene Propylene Copolymer
• TFE-HFP Copolymer
• CAS 25067-11-2
• Fluorinated Ethylene Propylene Resin
• Thermoplastic Fluoropolymer FEP
• Poly(tetrafluoroethylene-co-hexafluoropropylene)

1. Wire & Cable Insulation (Core Application): The largest application field of FEP resin. Used as insulation layer for various high temperature resistant wires, electronic wires, aerospace wires and high frequency communication cables. Its excellent electrical insulation, high temperature resistance and flame retardancy ensure safe and stable signal transmission under extreme environments. High-speed extrusion grades can adapt to high-efficiency cable production lines, and low dielectric loss grades are specially designed for 5G high-frequency communication scenarios.
2. Industrial Anti-corrosion Lining & Valves: Compression molding grade FEP is lined on the inner wall of pumps, valves, pipelines and reaction vessels as anti-corrosion layer. It resists almost all strong acids, strong bases and organic solvents, solves corrosion problems of chemical equipment, greatly extends equipment service life and reduces maintenance cost.
3. Tubing & Heat Shrink Tubing: Extruded into various specifications of FEP tubing and heat shrink tubing, used for fluid transportation in chemical, medical and food industries, as well as insulation protection of electronic components. Heat shrink tubing is widely used for connector insulation protection and wire end sealing due to its convenient installation and reliable performance.
4. FEP Film & Protective Covering: Made into transparent FEP film by extrusion or calendering, used as release film for composite material molding, anti-corrosion lining of equipment, solar cell packaging film and lamp explosion-proof cover. It has high light transmittance, weather resistance and anti-sticking property, and maintains stable performance under long-term outdoor exposure.
5. Medical Device Components: High purity medical grade FEP is used to manufacture intravenous catheters, surgical tubing, endoscope components and other medical device parts. It has good biocompatibility, chemical resistance and high temperature sterilization resistance, meets medical hygiene and safety standards.
6. Electronics & Semiconductor Industry: Used in semiconductor manufacturing equipment components, wafer processing carriers and insulating parts of electronic components. Its high purity, low ion precipitation and excellent electrical insulation meet the strict cleanliness requirements of semiconductor production environment.

   
   

   

A1: Both have excellent chemical resistance and high temperature resistance. The core difference is processability: PTFE is not melt processable and can only be formed by cold pressing and sintering, while FEP is a true thermoplastic that can be processed by conventional extrusion, injection molding and other thermoplastic methods, with much higher production efficiency. In terms of performance, FEP has a slightly lower long-term service temperature than PTFE, but better mechanical toughness and transparency.

A2: Selection is mainly based on processing method and product performance requirements. For compression molded lining products, choose low MFR grade such as M-1; for conventional extrusion of thick wall tubing and cables, choose medium MFR grades such as EW-2 and EW-3; for high-speed cable extrusion production lines, choose high MFR speed extrusion grades; for products requiring high stress crack resistance, choose S series enhanced grades; for high frequency communication cables, choose low dielectric loss special grades.

A3: FEP can be used stably for a long time in the range of -200℃ to 200℃, and maintains good mechanical and electrical properties in the whole temperature range. It can withstand higher instantaneous temperature, and its thermal stability is far superior to most general engineering plastics.

A4: Yes. FEP has inherent excellent flame retardant property, its limiting oxygen index is very high, it is not easy to burn, and has self-extinguishing property. It is one of the preferred materials for high temperature resistant flame retardant wires and cables, and meets the flame retardant requirements of most industrial and electronic fields.

A5: Store in a clean, cool and dry environment, sealed to avoid moisture and dust contamination. During processing, the temperature should be controlled within the recommended processing temperature range, and avoid long-term residence at excessively high temperature to prevent resin degradation. It is recommended to clean the extruder before processing to avoid impurity mixing affecting product performance.

A6: High purity food contact grade and medical grade FEP comply with relevant food contact and medical material standards, and can be safely used in food processing equipment lining and medical device components. Ordinary industrial grades are mainly used for general industrial scenarios, please confirm the grade specification before use in food and medical fields.