FEP 4622HT

Get to know Everflon™ FEP 4622HT.

Everflon^ultra™ FEP 4622HT is a melt-proces-sible fluoroplastic resin available in pellet form. It is a copolymer of tetrafluoroeth-ylene, hexafluoropropylene and PPVE, without additives, that meets the require-ments of ASTM D 2116 Type II. With a rela-tively high melt flow rate and excellent electrical properties, Everflon^ultra™ FEP 4622HT has been specifically designed for high-speed extrusion of thin coatings on small-gauge wires for twisted-pair con-structions.

This resin provides the electrical and me-chanical properties needed for low voltage applications. In addition, Everflon^ultra™ FEP 4622HT has a higher melt flow rate than most other fluoroplastic resins. This permits higher extrusion speeds and easier pro-cessing, making Everflon^ultra™ FEP 4622HT a cost-effective alternative for producing thin-wall extrusions.

Everflon^ultra™ FEP 4622HT is designed and made to have improved adhesion to copper wire under specific wireline process conditions, low dissipation factor at high frequencies, and sig-nificant plate-out resistance in melt extrusion. It is suitable as a solid insulator and as a foamed insulator, when used with an appropriate nucleant in a nitrogen gas injection process.

Everflon^ultra™ FEP 4622HT is used when traditional extrusion and molding processes are required for producing products with the superior properties of a fluoroplastic resin. Com-pared to other thermoplastics, the high melt strength and thermal stability of Everflon^ultra™ FEP 4622HT can be used to improve processing rates.

Related Products

FEP 4622HT
FEP 4630HT

Faster, Higher, Stronger

Everflon™ 4622		Everflon^ultra™ 4622HT
260°C	Melting Point	290°C
200°C	Working Temperature	240°C
> 20 Mpa	Tensile Strength	> 24Mpa
> 300%	Elongation at break	> 350%
>120 1/s	Critical Shear Rate	>200 1/s

General Property Data for Everflon^ultra™ FEP 4622HT

Properties	Test Method&Unit	Typical Value
PROCESSING
Specific Gravity	ASTM D792	2.15
Critical Shear Rate, 372 °C (702 °F)	1/s	120
Guide DDR Range for Cable Extrusion		100
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	100,000
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%
Continuous Service Temperature	°C	240
Flammability Classification	UL 94	V-0


Typical Applications

Applications for Everﬂon^ultra™ FEP 4622HT include small diameter, thin wall wire and cable insulation; industrial film; and intricate or thin wall parts made by injection molding.

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 Customer Service Group. Also read the detailed information in the latest edition of the “Guide to the Safe Handling of Fluoropolymer Resins”.