Fluorinated Ethylene Propylene Copolymer FEP/F46 CAS 25067-11-2 for High-Performance Fluoroplastics, Electronic Materials, and Corrosion-Resistant Applications (Low MFR 8 / High MFR 23)

1. Product Overview

Fluorinated Ethylene Propylene Copolymer (FEP, commonly referred to as F46 in China) is an important perfluorinated polymer material, formed by the copolymerization of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP).

FEP combines the excellent chemical corrosion resistance, high-temperature resistance, and electrical insulation properties of polytetrafluoroethylene (PTFE) with good melt processability, enabling processing through extrusion, injection molding, and other methods.

Based on different melt flow properties, FEP products are generally classified into low melt flow rate and high melt flow rate grades. The products offered include: Low MFR 8 and High MFR 23, suitable for different processing methods and application fields.

For the Russian market, this product is mainly targeted at fluoroplastic processing enterprises, wire and cable companies, electronic material enterprises, chemical equipment manufacturers, and high-performance material traders.

2. Specifications

Product Name: Fluorinated Ethylene Propylene Copolymer

English Name: Fluorinated Ethylene Propylene / FEP

Chinese Alternative Name: F46, Fluoroplastic FEP

Chemical Name: Tetrafluoroethylene-Hexafluoropropylene Copolymer

CAS No.: 25067-11-2

Product Category: High-performance fluoropolymer

Grades: Low MFR 8, High MFR 23

Appearance: White pellets or resin powder

Packaging: 25 kg bags or customized according to customer requirements

Storage: Store in a dry, clean environment in sealed containers

3. Main Application Areas

① Wire and Cable Insulation Materials

FEP offers excellent electrical insulation, high-temperature resistance, and aging resistance. It can be used in high-end wire and cable insulation layers, aerospace cables, and electronic connecting wires.

② Electronics and Semiconductor Materials

Used in electronic equipment and semiconductor processing equipment for corrosion-resistant tubing, insulating components, and high-purity material assemblies.

③ Chemical Anti-Corrosion Equipment

With excellent acid, alkali, and solvent resistance, it can be used for linings, pipes, valves, and sealing materials.

④ Low-Friction and Functional Coatings

Used in wear-resistant coatings, non-stick coatings, and specialty industrial surface treatments.

4. Application Differences Between Different Melt Flow Grades

① Low MFR 8

Characteristics: Lower melt flow rate, relatively higher molecular weight, with better mechanical properties and stress resistance.

Main Applications:

-Wire and cable insulation;

-High-performance tubing;

-Thick-walled products;

-Components requiring higher mechanical strength.

② High MFR 23

Characteristics: Higher melt flow rate, better processability, suitable for complex structure molding.

Main Applications:

-Injection molded products;

-Precision parts;

-Thin-walled products;

-High-efficiency processing products.

5. Key Purchasing Criteria in the Russian Market

When sourcing FEP/F46, Russian customers typically focus on:

-Melt Flow Rate (MFR);

-Resin purity;

-Processing stability;

-Thermal stability performance;

-Tensile strength and elongation;

-Dielectric properties;

-Particle size distribution;

-Technical documentation including COA, TDS, and SDS.

6. Product Advantages

-Excellent chemical corrosion resistance;

-Good high-temperature resistance;

-Excellent electrical insulation properties;

-Melt processable, offering more flexible processing compared to PTFE;

-Available in both low MFR and high MFR grades for different processing needs;

-Suitable for high-performance fluoropolymer applications in the international market.

7. Packaging and Storage

FEP resin should be packaged in clean, moisture-proof packaging to prevent contamination by dust, moisture, and other pollutants.

The storage environment should be kept dry and well-ventilated, avoiding high temperatures and prolonged direct sunlight.

8. Frequently Asked Questions (FAQ)

Q: What is the difference between FEP and PTFE?

A: Both FEP and PTFE are perfluorinated polymers with excellent corrosion resistance and high-temperature performance. FEP is melt-processable, while PTFE generally requires special processing methods.

Q: What is the difference between Low MFR 8 and High MFR 23?

A: Low MFR 8 offers superior mechanical properties and stress resistance, suitable for wire and cable and high-strength products; High MFR 23 provides better flowability, suitable for injection molding and complex structural parts.

Q: Which industries primarily use FEP?

A: It is mainly used in electronics and electrical, semiconductor, aerospace, chemical anti-corrosion, wire and cable, and high-performance industrial material applications.

Q: What documents are required for purchasing FEP in Russia?

A: Typically, COA, TDS, SDS, product grade specifications, and packaging information are required.

Q: How to select the appropriate FEP grade?

A: The selection is primarily based on the processing method. Extrusion and wire and cable applications typically use low MFR grades; injection molding and complex structural products typically use high MFR grades.