PFA GC403

Get to know Everflon^ultra™ High Purity PFA GC403 Iota.

Everflon^ultra™ PFA GC403 is a special purpose fluoroplastic resin available in pellet form. This resin is a chemically modified form of Everflon^ultra™ PFA 403 that combines many of the benefits of the parent resin (highest resistance to environmental stress-cracking with a typical MIT folding endurance of 500,000) with several additional benefits including enhanced purity, improved thermal stability while processing, and chemical inertness; for example, to ozonated fluids.

Everflon^ultra™ PFA GC403 is a relatively low melt flow rate (typical MFR of 3), premium resin with the lowest level of extractables designed to meet ultra-high purity requirements. An enhanced resistance to environmental stress-cracking makes Everflon^ultra™ PFA GC403 a preferred resin when extended service is required in hostile environments involving chemical, thermal, and mechanical stress.

Additionally, the enhanced purity of Everflon^ultra™ PFA GC403 makes it suitable for applications that require improved color, lower extractable fluorides, and freedom from other foreign materials. This product contains no additives and is designed for hostile chemical environments where purity in the parts-per-billion range is needed. Examples are in semiconductor manufacture, fluid handling systems for industry or life sciences, and instrumentation for precise measurements of fluid systems. Compared to other thermoplastics, the high melt strength and thermal stability of Everflon^ultra™ PFA GC403 can be used to improve processing rates, combining the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene.

Properly processed products made from neat Everflon™ PFA GC403 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^ultra™ PFA GC403 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

High Purity PFA GC403
High Purity PFA GC410
High Purity PFA GC420
High Purity PFA GC430

Data List

General Property Data for Everflon^ultra™ PFA GC403

Properties	Test Method&Unit	Typical Value
Melt Flow Index	ASTM D3307 g/10min/5kg	2~4
Melt Point	ASTM D4591 °C (°F)	305(581)
Specific Gravity	ASTM D792	2.15
Critical Shear Rate, 372 °C (702 °F)	1/s	12
Tensile Strength	ASTM D3307 Mpa	26
Elongation at Break	ASTM D3307 %	300
Flexural Modulus	ASTM D790 MPa (psi) 23 °C (73 °F)/250 °C (482 °F)	625 (90,000) 69 (10,000)
MIT Folding Endurance (0.20 mm, 8 mil film)	ASTM D2176 Cycles	500,000
Hardness Durometer	ASTM D2240	D55
Dielectric Strength, Short Time, 0.25 mm (0.010 in)	ASTM D149 kV/mm	>80
Dielectric Constant, 1 MHz (10⁶Hz)	ASTM D150	2.0
Dissipation Factor, 1 MHz (10⁶Hz)	ASTM D150	<0.0002
Volume Resistivity	ASTM D257 / ohm·cm	10¹⁸
Water Absorption, 24 hr	ASTM D570 %	<0.01
Weather and Chemical Resistance		Outstanding
Limiting Oxygen Index	ASTM D2863 %	> 95%
Continuous Service Temperature	°C (°F)	260 (500))
Flammability Classification	UL 94	V-0

Typical Applications

Applications for Everflon^ultra™ PFA GC403 include tubing, chemical linings for pipes, valves, and fittings used in the chemical processing industries, unsupported pipe linings for the production of ultra-pure chemicals, semiconductor components, and fluid handling components for highperformance chemical delivery systems where purity in the parts-perbillion range is needed.

Everflon^ultra™ PFA GC403 is preferred in applications where extended service is required in hostile environments involving chemical, thermal, and mechanical stress.

Processing Guide

Everflon^ultra™ PFA GC403 can be processed by conventional melt extrusion, and by injection, compression, and transfer molding processes. High melt strength and heat stability permit the use of relatively large die openings and high temperature draw-down techniques that increase production rates. Reciprocating screw injection molding machines are preferred.

Corrosion-resistant metals should be used in contact with molten fluoroplastic resin. Extruder barrel should be long, relative to diameter, to provide residence time for heating the resin to approximately 390 °C (730 °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 and Handling

The properties of Everflon^ultra™ PFA 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.

Everflon^ultra™ PFA is supplied as pellets and is available in 25-kg multilayer bags with an integral polyethylene liner.

Food Contact Compliance

Properly processed products made from Everflon^ultra™ PFA GC403 resin can qualify for use in contact with food in compliance with FDA 21 CFR177.1550 and European Regulation (EU) No. 10/2011.


Enabling High Purity in Critical Applications
<20ppb by ICP/Ms


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Everflon^ultra™ PFA GC403 for The World Advanced Market.


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