Multi-Grade Translucent FEP Particle Resin (Models: HD921/HD922/HD923/HD924/HD925/HD926/HD928)

Multi-Grade Translucent FEP Particle Resin: Diverse melting indexes for extrusion/injection/compression molding. Retains PTFE's excellence with superior processability-ideal for industrial precision components.

Multi-Grade Translucent FEP Particle Resin (Models: HD921-HD928) refers to premium fluoropolymer particles synthesized by copolymerizing tetrafluoroethylene with 15% hexafluoropropylene (FEP/F46). As a modified derivative of PTFE (the "King of Plastics"), this translucent FEP resin inherits PTFE's core properties (chemical stability, corrosion resistance, electrical insulation) while overcoming PTFE's processing limitations via its branched-chain molecular structure. The key advantage lies in its diverse melting index options across multiple models, which are precisely tailored to match different processing technologies (compression molding, extrusion, injection molding), making it a versatile solution for various industrial manufacturing needs. It complies with global quality standards, ensuring consistent performance and reliability for high-precision component production.

What is Multi-Grade Translucent FEP Particle Resin?
FEP (Fluorinated Ethylene Propylene), also known as F46, is a high-performance fluoropolymer copolymer of tetrafluoroethylene and 15% hexafluoropropylene. Unlike PTFE-a linear polymer with high crystallinity and poor processability-FEP features a branched-chain molecular structure that reduces crystallinity, lowers melting point, and endows it with excellent thermoplastic processing properties. Our Multi-Grade Translucent FEP Particle Resin (HD921-HD928 series) is engineered as translucent particles with diverse melting index specifications, each model optimized for a specific processing method.
Compared to other fluoropolymers like ETFE or PVDF, this FEP resin offers a more balanced combination of chemical inertness and processability: it is more resistant to organic solvents than PVDF and easier to mold into complex shapes than ETFE. The translucent particle form ensures uniform melting during processing, avoiding defects in end-products. With seven models covering a wide range of melting indexes, it solves the common pain point of single-grade FEP resins failing to adapt to diverse manufacturing processes, enabling manufacturers to use a single material system for multiple production lines.

The superior performance of this FEP resin stems from its molecular structure and precise formulation, with properties tailored to industrial processing and application needs:
● Excellent Chemical Inertness: The fluorinated C-F bonds in its molecular structure make it inert to nearly all industrial chemicals, including strong acids, bases, organic solvents, ketones, and aromatics. This inertness is comparable to PTFE, ensuring end-products maintain stability in harsh chemical environments (e.g., chemical processing equipment components). Unlike non-fluoropolymer resins, it does not swell, degrade, or leach harmful substances, making it suitable for food and pharmaceutical contact applications.
● Diverse Melting Index for Versatile Processing: The HD921-HD928 series covers a wide range of melting indexes, with each model optimized for a specific process: low melting index models (e.g., HD921) for compression molding (requiring high viscosity to maintain shape), medium melting index models (e.g., HD925) for extrusion (ensuring smooth flow for wire insulation or FEP tubing), and high melting index models (e.g., HD928) for injection molding (enabling rapid filling of complex molds). This versatility eliminates the need for manufacturers to source multiple resin types, reducing procurement and inventory costs.
● Superior Thermoplastic Processability: As a branched-chain polymer, it melts at a lower temperature than PTFE and can be processed via standard thermoplastic methods (compression molding, extrusion, injection molding) without specialized equipment. This processability advantage translates to higher production efficiency and lower processing costs compared to PTFE, which requires complex sintering processes.
● Excellent Electrical Insulation: It maintains a low dielectric constant (≤2.15 at 10⁶Hz) and low dissipation factor across a wide temperature range (-200℃ to 200℃), making it ideal for electrical components such as wire insulation, connectors, and printed circuit board substrates. The non-polar nature of its molecular structure ensures stable insulation performance even in high-frequency and high-voltage environments.
● Translucency & High Purity: The translucent particle form allows for the production of transparent or semi-transparent end-products (e.g., FEP films, medical tubing), while its high purity (low extractables) meets the requirements of food, pharmaceutical, and semiconductor industries. It complies with FDA 21 CFR 177.1550 and RoHS standards, ensuring safety and environmental friendliness.
● Flame Retardancy & Thermal Stability: It is inherently flame-retardant (self-extinguishing) and retains properties at continuous operating temperatures up to 200℃, with short-term resistance to 240℃. This thermal stability, combined with flame retardancy, makes it suitable for high-temperature industrial environments and aerospace applications where safety is critical.
●Low Friction & Wear Resistance: It has a low friction coefficient (≤0.15), similar to PTFE, reducing wear and tear in moving components (e.g., gears, bearings). Its wear resistance ensures long service life of end-products, reducing maintenance and replacement costs for users.

Feature (F)
Translucent FEP (F46) particle resin; 7 models (HD921-HD928) with diverse melting indexes; copolymer of tetrafluoroethylene + 15% hexafluoropropylene; thermal stability (-200℃~200℃); dielectric constant ≤2.15 (10⁶Hz); RoHS/FDA compliant.
 

Advantage (A)
Inherits PTFE's chemical inertness while being more processable via standard thermoplastic methods; diverse melting indexes适配 multiple processes (compression/extrusion/injection); translucent and high-purity; flame-retardant and wear-resistant; more solvent-resistant than PVDF, easier to mold than ETFE.
 

Benefit (B)
Reduces procurement/inventory costs for manufacturers (one material for multiple processes); lowers processing costs vs. PTFE (no specialized equipment); ensures end-product stability in harsh environments; meets safety standards for food/pharmaceutical use; extends component service life; enhances production efficiency.
 

Evidence (E)
Complies with FDA 21 CFR 177.1550, RoHS, and ISO 9001 standards; test report No. FEP-PART-2024 confirms 99% processing yield for HD925 in FEP tubing extrusion; a medical device manufacturer using HD923 (medium melting index) reduced production defects by 35% vs. generic FEP resin; 1000-hour chemical immersion test shows no degradation in 98% sulfuric acid.

The diverse melting indexes of the HD921-HD928 series enable wide application across industries:
● Low Melting Index Models (e.g., HD921/HD922): Compression molding of chemical-resistant gaskets, seals, and high-temperature components for industrial equipment.
● Medium Melting Index Models (e.g., HD923/HD925): Extrusion of wire insulation, FEP tubing, FEP sheets, and films for electrical, medical, and food packaging industries.
● High Melting Index Models (e.g., HD926/HD928): Injection molding of complex components such as automotive electrical connectors, semiconductor parts, and medical device housings.

Packaging: Supplied in 25KG sealed PE bags with outer drums to prevent contamination and moisture absorption. Storage: Keep in a dry, cool (≤30℃) warehouse away from direct sunlight, heat sources, and incompatible materials. Avoid strenuous vibration and rain during transportation. Shelf life: 2 years from production date when stored as recommended.

Looking for a versatile FEP particle resin that fits your specific processing needs? Contact our technical team to get free samples of HD921-HD928 series and a detailed technical datasheet. We provide tailored recommendations to match the right melting index model with your process (compression/extrusion/injection). Flexible order quantities, competitive pricing, and global delivery are available. Send an inquiry now or call our sales representative to discuss how our multi-grade FEP resin can enhance your production efficiency and product quality!

25kg/woven bag, 800kg/pallet

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