FEP 4610X

Get to know Everflon™ FEP 4610X.

Description 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.

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Data List

Compare Typical Property Data for Everflon™ FEP 4610X Fluoroplastic Resin with FEP 4610

260~290°C	Melting Point	260°C
240°C	Working Temperature	200°C
> 28Mpa	Tensile Strength	> 22Mpa
> 360%	Elongation at break	> 330%

General Property Data for Everflon™ FEP 4610X

Properties	Test Method&Unit	Typical Value
PROCESSING
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	ASTM D2240	D56
ELECTRICAL
Dielectric Strength, Short Time, 0.25 mm (0.010 in)	ASTM D149 kV/mm	>100
Relative Permittivity, 1 kHz	ASTM D150	2.03
Relative Permittivity, 1 GHz	ASTM D150	2.03
Dissipation Factor, tg δ, 1 kHz	ASTM D150	0.00005
Dissipation Factor, tg δ, 1 GHz	ASTM D150	0.0007
OTHER
Water Absorption, 24 hr	ASTM D570 %	<0.01
Weather and Chemical Resistance		Excellent
Limiting Oxygen Index	ASTM D2863 %	> 95%
Flammability Classification	UL 94	V-0

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”.