FEP 4603

Get to know Everflon™ FEP 4603.

Everflon™ FEP 4603 is a melt-processible copolymer of tetrafluoroethylene and hexafluoropropylene, without additives, that meets the requirements of ASTM D2116 Type IV. It offers the excellent combination of properties characteristic of Everflon™ fluoroplastic resins: non-aging characteristics;chemical inertness;exceptional dielectric properties;low flammability, heat resistance;toughness and flexibility;low coefficient of friction;non-stick characteristics;negligible moisture absorption;excellent weather resistance.

Everflon™ FEP 4603 is used in the chemical industry for applications, such as chemical linings, bellows, valve components, pipes, and tubing. In demanding wire and cable applications, requiring a very high degree of stress crack resistance, it can be used as a material for jacketing.

Thanks to its combination of viscosity and stress crack resistance, it can be processed at faster rates and higher extrusion line speeds than many Everflon™ FEP grades with comparable stress crack resistance performance.

Related Products

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

Data List

Typical Property Data for Everflon™ FEP 4603 Fluoroplastic Resin

General Property Data for Everflon™ FEP 4603

Properties	Test Method&Unit	Typical Value
Specific Gravity	ASTM D792	2.15
Critical Shear Rate, 372 °C (702 °F)	1/s	12
Guide DDR Range for Cable Extrusion		20-60
Guide DDR Range for Jacket Extrusion		3–8
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
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

Typical Applications for Everflon™ FEP 4603 is tubes, piping, linings, bellows, valves, and other components for the chemical industry. Jackets for wire and cable applications demanding a high degree of stress crack resistance.

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 should be constructed of high nickel alloycorrosion-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.

Package

Everflon™ FEP 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.