FEP 4622

Get to know Everflon™ FEP 4622.

Everflon™ FEP 4622 is a melt-processible fluoroplastic resin available in pellet form. It is a copolymer of tetrafluoroethylene and hexafluoropropylene, without additives, that meets the requirements of ASTM D 2116 Type II. With a relatively high melt flow rate and excellent electrical properties, Everflon™ FEP 4622 has been specifically designed for high-speed extrusion of thin coatings on small-gauge wires for twisted-pair constructions.

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

Everflon™ FEP 4622 is designed and made to have improved adhesion to copper wire under specific wireline process conditions, low dissipation factor at high frequencies, and significant 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™ FEP 4622 is used when traditional extrusion and molding processes are required for producing products with the superior properties of a fluoroplastic resin. Compared to other thermoplastics, the high melt strength and thermal stability of Everflon™ FEP 4622 can be used to improve processing rates.

Compared with other fluoroplastics, creep resistance at high service temperatures provides a superior balance and level of end-use properties. Everflon™ FEP 4622 combines the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene.

Properly processed products made from neat Everflon™ FEP 4622 resin provide the superior properties characteristic of fluoroplastic resins: chemical inertness, exceptional dielectric properties, heat resistance, toughness and flexibility, low coefficient of friction, nonstick characteristics, negligible moisture absorption, low flammability, performance at temperature extremes, and excellent weather resistance.

In a flame situation, products of Everflon™ FEP 4622 resist ignition and do not promote flame spread. When ignited by flame from other sources, their contribution of heat is very small and added at a slow rate with very little smoke

Related Products

FEP 4630
FEP 4622
FEP 4610
FEP 4608
FEP 4603
FEP 4601

Data List

Typical Property Data for Everflon™ FEP 4622 Fluoroplastic Resin

General Property Data for Everflon™ FEP 4622

Properties	Test Method&Unit	Typical Value
Specific Gravity	ASTM D792	2.15
Critical Shear Rate, 372 °C (702 °F)	1/s	150
Guide DDR Range for Cable Extrusion		60–120
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	10,000
Hardness Durometer	ASTM D2240	D56
Dielectric Strength, Short Time, 0.25 mm (0.010 in)	ASTM D149 kV/mm	>100
Relative Permittivity, 1 kHz	ASTM D150	2.0
Relative Permittivity, 1 GHz	ASTM D150	2.0
Dissipation Factor, tg δ, 1 kHz	ASTM D150	0.00005
Dissipation Factor, tg δ, 1 GHz	ASTM D150	0.0007
Water Absorption, 24 hr	ASTM D570 %	<0.01
Weather and Chemical Resistance		Excellent
Limiting Oxygen Index	ASTM D2863 %	> 95%
Continuous Service Temperature	°C (°F)	205 (400)
Flammability Classification	UL 94	V-0

Typical Applications

Small diameter, thin wall wire and cable insulation; industrial film; and intricate or thin wall parts made by injection molding.

Processing Guide

Everflon™ FEP fluoroplastic resin can be processed by conventional melt extrusion, and by injection, compression, 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 4622 should be constructed of high nickel alloy corrosion-resistant materials and be capable of operating at temperatures up to 400 °C (750 °F)

Precaution

Equipment used to process at melt temperatures should be provided with local exhaust ventilation (LEV) to completely 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.

Everflon™ FEP4622 for the advanced global market.