CAS 25067-11-2 | Perfluoroethylene Propylene (FEP) | Melt-Processable Fluoropolymer | China Manufacturer
Product Name: Perfluoroethylene Propylene (FEP)
Synonym: Fluorinated Ethylene Propylene, FEP Copolymer, FEP Resin, FEP Powder DS605
CAS Number: 25067-11-2
Molecular Formula: (C₂F₄·C₃F₆)ₓ
Appearance: Translucent pellets or white powder
Melting Point: 250 – 280 °C
Density: 2.12 – 2.17 g/cm³
Continuous Service Temperature: -200 to 205 °C
Tensile Strength: 20 – 30 MPa
Dielectric Constant: 2.1 (at 1 MHz)
Processing Methods: Melt extrusion, injection molding, transfer molding
Packaging: 1kg / 25kg / 200kg (custom available)
Lead Time: 3-7 business days from stock
Made in China | COA & SDS provided with every shipment
- Worldwide Delivery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
CAS 25067-11-2 | Perfluoroethylene Propylene (FEP) Powder DS605 | Melt-Processable Fluoropolymer | China Manufacturer
|
🧪 Density
2.12 – 2.17 g/cm³
Relative gravity
|
🌡️ Service Temp
-200 to 205 °C
Continuous use
|
🧊 Appearance
Translucent Pellets
White powder available
|
📦 Packaging
1kg – 200kg
Custom available
|
Product Overview
As a China-based manufacturer, Alfa Chemical supplies Perfluoroethylene Propylene (FEP) powder DS605 (CAS 25067-11-2), a melt-processable fluoropolymer based on the copolymer of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP). The product offers a combination of thermal stability, chemical inertness, electrical insulation, and low coefficient of friction, enabling processing via standard thermoplastic methods such as melt extrusion, injection molding, and blow molding.
FEP Powder DS605 is specifically designed for valve and piping linings and electrostatic spraying applications. A key processing advantage is that it can be dry-blended or melt-blended with PTFE powder, allowing formulators to combine the melt-processability of FEP with the superior wear resistance of PTFE. This makes DS605 a versatile raw material for custom fluoropolymer compounds targeting demanding chemical and electrical applications.
We offer flexible packaging from 1kg R&D samples to 200kg bulk quantities with fast worldwide delivery. For similar fluoropolymers and specialty materials, explore our related product range.
Key Features
Continuous service from -200°C to 205°C, with short-term resistance up to 260°C. Excellent thermal stability for demanding environments.
Resistant to most acids, bases, solvents, and oxidizing agents. Suitable for aggressive chemical processing environments.
Can be processed by melt extrusion, injection molding, and transfer molding, unlike PTFE which requires cold compaction and sintering.
Low dielectric constant (2.1) and dissipation factor over a wide frequency range. Ideal for wire and cable insulation.
Applications of CAS 25067-11-2 | Perfluoroethylene Propylene (FEP)
Used as insulation for high-frequency cables, data transmission cables, and aerospace wiring due to its low dielectric constant and thermal stability.
Request technical data →Linings, tubing, and components for chemical reactors, heat exchangers, and piping systems handling corrosive fluids.
Get formulation advice →High-purity FEP tubing and fittings for ultra-pure water, chemicals, and gases in semiconductor manufacturing.
Request a sample →Used in heat-shrinkable tubing for electrical insulation, strain relief, and protection of components in harsh environments.
Request a quote →Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | Perfluoroethylene Propylene (FEP) |
| CAS Number | 25067-11-2 |
| Molecular Formula | (C₂F₄·C₃F₆)ₓ |
| Appearance | Translucent to white pellets or powder |
| Melting Point | 250 – 280 °C |
| Density | 2.12 – 2.17 g/cm³ |
| Continuous Service Temperature | -200 to 205 °C |
| Tensile Strength | 20 – 30 MPa |
| Dielectric Constant | 2.1 (at 1 MHz) |
| Processing Methods | Melt extrusion, injection molding, transfer molding |
| Storage Condition | Cool, dry, well-ventilated |
| Shelf Life | 24 months |
| Packaging Options | 1kg / 25kg / 200kg, custom available |
Grade Selection Guide
Technical Data by Grade
| Item | Unit | KT602/KT612 | KT611 | KT610-A | KT610-B | KT610-H | KT605 | Test Method |
|---|---|---|---|---|---|---|---|---|
| Appearance | / | Translucent particle, black particles ≤1% | White powder | HG/T 2904 | ||||
| Melting Index | g/10min | 0.8–2.0 | 2.1–5.0 | 5.1–8.0 | 8.1–12.0 | 5.1–12.0 | >0.1 | GB/T 3682 |
| Tensile Stress, ≥ | MPa | 28.0 | 26.0 | 22.0 | 22.0 | 25.0 | / | GB/T 1040 |
| Fracture Strain, ≥ | % | 320 | 310 | 310 | 310 | 330 | / | GB/T 1040 |
| Average Particle Size | μm | / | 0–100 | / | ||||
| Relative Gravity | / | 2.12–2.17 | GB/T 1033 | |||||
| Melting Point | °C | 265±10 | GB/T 28724 | |||||
| Moisture, ≤ | % | / | 0.05 | GB/T 6284 | ||||
| Dielectric Constant (10⁶Hz), ≤ | / | 2.15 | 2.15 | 2.15 | 2.15 | 2.07 | / | GB/T 1409 |
| Dissipation Factor (10⁶Hz), ≤ | / | 7.0×10⁻⁴ | 7.0×10⁻⁴ | 7.0×10⁻⁴ | 7.0×10⁻⁴ | 5.7×10⁻⁴ | / | GB/T 1409 |
| Heat Stress Cracking Resistance | / | Crackless | / | / | HG/T 2904 | |||
| MIT, ≥ | time | / | 30,000 | / | ASTM D2176 | |||
Applications by Grade
Heat stress cracking resistant plastics, mainly for wire insulation layer and thin-walled tube.
Low melting index resin and heat stress cracking resistant moulding plastic. Used for heat shrinkable tubes, pumps, valves, piping and lining, wire insulation layer.
Extrusion processed general purpose resin, mainly used for wire insulation layer, tubes, film, and bending-sensitive fields such as automotive cable.
Mainly for lining of valve and piping, electrostatic spraying.
Every shipment includes COA and SDS. Click below to request batch-specific documents or technical data:
Manufacturing & Quality Control of CAS 25067-11-2 | Perfluoroethylene Propylene (FEP)
Alfa Chemical operates a dedicated facility for high-performance fluoropolymers. Our FEP is produced under strict quality control to ensure consistent molecular weight, thermal stability, and batch-to-batch uniformity. Advanced purification processes are employed for high-purity grades used in semiconductor and chemical processing applications.
Each batch is tested in-house for melt flow rate, density, and thermal properties. A Certificate of Analysis (COA) and Safety Data Sheet (SDS) are provided with every shipment. Learn more about our facilities →
Packaging & Shipping
- Packaging Options: 1kg / 25kg / 200kg bags or drums, custom packaging on request
- Shipping Methods: International express courier for sample quantities; air freight or sea freight for bulk orders
- Delivery Time: 3-7 business days after payment confirmation
- Documentation: COA and SDS provided with every shipment
For special packaging or urgent requests, please contact our team directly.
Why Choose Alfa Chemical
- 10+ years focused on fluoropolymers and high-performance materials
- Experienced R&D and QC team with expertise in fluoropolymer synthesis and processing
- In-house QC – melt flow rate, density, and thermal properties verified, batch-traceable COA
- Flexible supply – 1kg for R&D up to 200kg for production
- China manufacturer direct – competitive pricing with full COA/SDS traceability
Explore more other material chemicals or contact us for custom requirements.
Frequently Asked Questions
FEP is used for wire and cable insulation, chemical processing equipment linings, semiconductor fluid handling, and heat-shrinkable tubing.
FEP offers similar chemical resistance and thermal stability to PTFE but can be melt-processed using standard thermoplastic equipment, while PTFE cannot.
FEP can be used continuously from -200°C to 205°C, with short-term resistance up to 260°C.
Yes, COA and SDS are provided with every shipment. Batch-specific documents are available upon request.
Standard packaging includes 1kg, 25kg, and 200kg bags or drums. Custom packaging is available upon request.
Standard MOQ is 1kg for R&D samples and 25kg for production quantities. Contact us for larger bulk orders.
Related products & resources:
* All product specifications are for reference purposes. Users should conduct their own suitability tests under actual conditions. This product is for industrial manufacturing and R&D use only. Not for food, pharmaceutical, or cosmetic applications without specific regulatory compliance testing.
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