High-Temperature Resistant FEP Pellet For Cable Jacket (Model: HD921)

High-Temperature Resistant FEP Pellet for Jacket: Excellent Heat Stress Cracking Resistance, Flame Retardancy & Processability. Ideal for High-Temp Wire/Cable Jacketing Applications.

FEP Pellet for High Temperature Jacket (also known as F46) refers to high-purity translucent fluoropolymer pellets, which are copolymers synthesized by hexafluoropropylene and tetrafluoroethylene. As a key member of the fluoropolymer family, this specialized FEP pellet is engineered to withstand extreme high-temperature environments, making it an ideal material for manufacturing high-temperature cable jackets. Our HD921 model FEP pellet, with a melt flow rate (MFR) of 2.1~5.0 g/10min, boasts outstanding heat stress cracking resistance and stable performance under high temperatures, specifically tailored for the wire and cable industry's high-temperature jacket production needs. It integrates multiple superior properties of fluoropolymers, such as corrosion resistance, excellent electrical insulation, and flame retardancy, providing reliable protection for cables operating in high-temperature scenarios.

What is FEP Pellet for High Temperature Jacket?
FEP (Fluorinated Ethylene Propylene) Pellet for High Temperature Jacket, commonly referred to as F46, is a high-performance fluoropolymer material in pellet form, specifically designed for the production of high-temperature resistant cable jackets. It is formed by the copolymerization of hexafluoropropylene and tetrafluoroethylene monomers, with a molecular structure stabilized by strong carbon-fluorine (C-F) bonds-this is the fundamental reason for its exceptional high-temperature resistance and chemical stability. Unlike PTFE (polytetrafluoroethylene), which is challenging to process, FEP pellets can be efficiently processed using conventional extrusion techniques, enabling continuous and high-quality production of high-temperature cable jackets.

Compared to other fluoropolymers like PVDF and PFA, FEP pellets for high-temperature jackets offer a more balanced combination of high-temperature resistance, processability, and cost-effectiveness. PFA pellets have excellent high-temperature performance but are more expensive, while PVDF pellets have relatively lower heat resistance. Our HD921 FEP pellet, with its translucent appearance and consistent particle size, ensures uniform melting during processing, which is crucial for forming cable jackets with stable thickness and reliable high-temperature performance. It maintains structural integrity and functionality even in long-term high-temperature operations, addressing the core demand of the wire and cable industry for durable high-temperature jacket materials.

HD921 FEP Pellet for High Temperature Jacket integrates a series of superior properties that are precisely tailored to meet the strict requirements of high-temperature cable jacket applications, each property supported by specific performance data and structural advantages:

● Excellent High-Temperature Resistance & Heat Stress Cracking Resistance: With a melting point of around 270℃, the HD921 FEP pellet can operate stably in high-temperature environments up to 200℃ for long periods. Its excellent heat stress cracking resistance ensures that the cable jacket does not crack or deform even under repeated thermal cycling and long-term high-temperature stress. This is attributed to its unique copolymer structure, which balances the rigidity of hexafluoropropylene and the flexibility of tetrafluoroethylene, enhancing thermal stability.

● Superior Flame Retardancy: As an inherently flame-retardant fluoropolymer material, it can stop flame spread without adding additional flame retardants, meeting the UL94 V-0 flammability standard. In high-temperature environments where fire risks are elevated, this property effectively prevents the spread of fire along the cable jacket, ensuring the safety of equipment and personnel. The flame retardancy is derived from the high carbon-fluorine bond energy in its molecular structure, which releases non-flammable fluorine-containing gases when heated, inhibiting combustion.

● Excellent Electrical Insulation Performance: It exhibits stable electrical insulation properties even under high temperatures, with a dielectric constant of ≤2.15 (at 10⁶ HZ) and a dissipation factor of ≤7.0×10⁻⁴ (at 10⁶ HZ). This ensures that high-temperature cables maintain reliable signal transmission and insulation performance, avoiding short circuits or signal interference caused by high temperatures. This property makes it suitable for high-temperature electrical cables in industrial furnaces, aerospace, and other high-temperature electrical systems.

● Strong Corrosion Resistance: The stable C-F bonds in the molecular structure make HD921 FEP pellet inert to most industrial chemicals, including strong acids, alkalis, solvents, and oils. In high-temperature environments where chemical corrosion risks are often heightened (such as petrochemical plants), the cable jacket made from this pellet can resist chemical erosion, maintaining long-term structural integrity and performance. This is superior to conventional high-temperature jacket materials like silicone rubber, which are prone to chemical degradation.

● Low Friction Coefficient & Non-Stick Characteristics: Similar to other high-quality fluoropolymers, HD921 FEP pellet has a low friction coefficient and non-stick surface. This reduces friction between the cable jacket and conduits during installation, facilitating construction in complex high-temperature environments. At the same time, the non-stick property prevents the adhesion of dust, oil stains, and other impurities, reducing maintenance costs and ensuring the jacket's heat dissipation performance.

● Excellent Mechanical Properties & Durability: With a tensile strength of ≥26 MPa and an elongation at break of ≥320%, HD921 FEP pellet offers excellent toughness and flexibility. The high-temperature cable jacket made from it can withstand mechanical impacts, abrasion, and bending during installation and use without damage. This ensures that the cable jacket maintains its protective function even in harsh high-temperature working conditions with mechanical stress, extending the service life of the cable.

● Easy Processability: With a melt flow rate of 2.1~5.0 g/10min, HD921 FEP pellet

25kg/woven bag, 800kg/pallet

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