FEP 4610X
Get to know Everflon™ FEP 4610X.
Everflonultra™ FEP 4610X is a modified melt-processible copolymer of tetrafluoro-ethylene and hexafluoropropylene, without additives.
It offers the excellent combination of prop-erties characteristic of Everflon™ fluoro-plastic resins: non-aging characteristics, chemical inertness, exceptional dielectric properties, low flammability, heat resis-tance, toughness and flexibility, low coeffi-cient of friction, non-stick characteristics, negligible moisture absorption, and excel-lent weather resistance. As an intermediate molecular weight resin, Everflon™ FEP 4610X offers higher processing speeds than many FEP grades with similar high level of stress crack resistance.
Stress crack resistance is an important element in establishing end-use performance. Extensive testing of wire and cable constructions is required for definitive performance evalua-tion.
Experience shows that the MIT folding endurance or flex life test, performed on a thin film of resin, has established a good correlation with extensive cable testing. The higher the MIT flex life, the higher the stress-crack resistance of the resin.
MIT test results should be viewed as a guide to comparative performance of the various grades of resin. We recommend that for applications involving repeated thermal and flex cycling, spe-cific tests on the final cable always should be undertaken.
Typical Applications
Insulation and jacket for wire and cable in applications demanding a high degree of stress crack resistance. Tubes and piping for general and chemical process industry.
Processing Guide
Everflonultra™ FEP fluoroplastic resin can be processed by conventional melt extrusion, and by injection, com-pression, and blow molding processes.
For smooth feeding to extrusion equipment, it is supplied in 3 mm (0.12 in) pellets.
The extruders and molding machines used for Everflon™ FEP should be constructed of high nickel alloy corro-sion-resistant materials and be capable of operating at temperatures up to 400 °C (750 °F)
Precaution
Industrial experience has proven that adequate ventilation, in properly maintained processing and handling areas, will eliminate known hazards to personnel. Resin containers should be opened and used in well-ventilated areas.
Equipment used to process at melt temperatures should be provided with local exhaust ventilation (LEV) to com-pletely remove all fumes and vapors from the processing area. In addition, care should be exercised to avoid the contamination of cigarettes and other forms of smoking tobacco when using fluoroplastic resins.
Before processing any fluoroplastics, read the Material Safety Data Sheet, available upon request from our Cus-tomer Service Group. Also read the detailed information in the latest edition of the “Guide to the Safe Handling of Fluoropolymer Resins”.
Data List
| Property | Test Method | Unit | Typical Value |
| GENERAL | |||
| Specific Gravity | ASTM D792 | 2.15 | |
| Critical Shear Rate, 372 °C (702 °F) | 1/s | 20 | |
| MECHANICAL | |||
| Impact Strength, Notched Izod, 23 °C (73 °F) | ASTM D256 | kJ/m² | No Break |
| MIT Folding Endurance (0.20 mm, 8 mil film) | ASTM D2176 | Cycles | 500,000 |
| Hardness Durometer | ISO 868 / ASTM D2240 | D56 | |
| ELECTRICAL | |||
| Dielectric Strength, Short Time, 0.25 mm (0.010 in) | IEC 243 / ASTM D149 | kV/mm | > 100 |
| Relative Permittivity, 1 kHz | IEC 250 / ASTM D150 | 2.03 | |
| Relative Permittivity, 1 GHz | IEC 250 / ASTM D150 | 2.03 | |
| Dissipation Factor, tg δ, 1 kHz | ISO 1325 / ASTM D150 | 0.00005 | |
| Dissipation Factor, tg δ, 1 GHz | ISO 1325 / ASTM D150 | 0.0007 | |
| OTHER | |||
| Water Absorption, 24 hr | ASTM D570 | % | <0.01 |
| Weather and Chemical Resistance | Excellent | ||
| Limiting Oxygen Index | ISO 4589 / ASTM D2863 | % | > 95 |
| Flammability Classification | UL 94 | V-0 | |
Handing & Package
Everflon ultra TM FEP 4610X is packaged in 25-kg, single layer, plastic bags. For convenient shipment, orders of 1000-kg gallary are recommended. The properties of Everflon™ FEP resin are not affected by storage time. Ambient storage conditions should be designed to avoid airborne contamination and water condensation on the resin when it is removed from containers.
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