Teflon™ FEP 9494
Fluoroplastic Resin

Product Information
For inventory control purposes, product name may be followed by an X.
Products labeled FEP 9494 and FEP 9494 X are equivalent, and all
information in this document is applicable to both.

Typical Applications
Applications for Teflon FEP 9494 include small diameter, thin wall wireand cable insulation; industrial film; and intricate or thin wall parts madeby injection molding.
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Description
Teflon™ FEP 9494 is a melt-processible fluoroplastic resin
available in pellet form. It is a copolymer of tetrafluoroethylene andhexafluoropropylene, without additives, that meets the requirementsof ASTM D 2116 Type II. With a relatively high melt flow rate andexcellent electrical properties, Teflon™ FEP 9494 has been specificallydesigned for high-speed extrusion of thin coatings on small-gauge
wires for twisted-pair constructions. Table 1 shows the typical property
data for Teflon™ FEP 9494.
As shown in Table 1, this resin provides the electrical and mechanicalproperties needed for low voltage applications. In addition, Teflon™ FEP
9494 has a higher melt flow rate than most other fluoroplastic resins. Thispermits higher extrusion speeds and easier processing, making Teflon™
FEP 9494 a cost-effective alternative for producing thin-wall extrusions.
Teflon™ FEP 9494 is designed and made to have improved dissipation
factor at high frequencies, and to have significant plate-out resistance inmelt 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.
Teflon™ FEP 9494 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 Teflon™ FEP 9494
can be used to improve processing rates. Compared with otherfluoroplastics, creep resistance at high service temperatures provides
a superior balance and level of end-use properties. Teflon™ FEP 9494
combines the processing ease of conventional thermoplastics withmany properties similar to those of polytetrafluoroethylene.
Properly processed products made from neat Teflon™ FEP 9494
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 Teflon™ FEP 9494 resist ignition and do
not promote flame spread. When ignited by flame from other sources, theircontribution of heat is very small and added at a slow rate with very little smoke.

Processing
Teflon™ FEP 9494 can be processed by conventional melt extrusion, andby 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. Corrosionresistant 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 400 °C (750 °F). For more detailed
processing information, including recommended draw-down ratios, consult
your Chemours sales representative.

Safety Precautions
Before using Teflon™ FEP 9494 resin, refer to the Material Safety Data
Sheet and the latest edition of “The Guide to the Safe Handling of
Fluoropolymer Resins,” published by The Society of the Plastics Industry, Inc.
(www.fluoropolymers.org) or by PlasticsEurope (www.plasticseurope.org).
Open and use containers only in well-ventilated areas using local exhaust
ventilation (LEV). Vapors and fumes liberated during hot processing ofTeflon™ FEP 9494 should be exhausted completely from the work area.
Contamination of tobacco with these polymers must be avoided. Vapors andfumes liberated during hot processing that are not properly exhausted, orfrom smoking tobacco or cigarettes contaminated with Teflon™ FEP 9494,
may cause flu-like symptoms, such as chills, fever, and sore throat. This may
not occur until several hours after exposure and will typically pass within
about 24 hours.
Mixtures with some finely divided metals, such as magnesium or aluminum,
can be flammable or explosive under some conditions.

Food Contact Compliance
Properly processed products made from Teflon™ FEP 9494 resin canqualify for use in contact with food in compliance with FDA Inventory ofEffective Food Contact Substance (FCS) Notification #947. For details andinformation, please contact your Chemours sales representative.

Storage and Handling
The properties of Teflon™ FEP 9494 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.

Packaging
Teflon™ FEP 9494 is supplied as pellets, and is available in 25-kg single layer
plastic bags and 1,000-kg bulk containers.

Fluoroplastic Resin

Teflon™ FEP 9494

Table 1: Typical Property Data for Teflon™ FEP 9494 Fluoroplastic Resin
Property

Test Method1

Unit

Typical Value

PROCESSING
Melt Flow Rate (MFR at 372 °C [702 °F]/5.0 kg)

ISO 12086

D 2116g/10 min30

Specific Gravity

ISO 1183

D 792—2.15—

Chemours

1/s

200

Tensile Strength, 23 °C (73 °F)

ISO 12086

D 638

MPa (psi)

20 (3,000)

Ultimate Elongation, 23 °C (73 °F)

ISO 12086

D 638%300

Flexural Modulus, 23 °C (73 °F)

ISO 178

D 790

MPa (psi)

520 (75,500)—

D 21762

Cycles7,000

ISO 868

D 2240—

D 55

Critical Shear Rate (372 °C/702 °F)
MECHANICALMIT Folding Endurance (0.20 mm, 8 mil film)
Hardness, Shore Durometer
ELECTRICAL
Dielectric Constant, 1 MHz

IEC 250

D 150

—

2.03

Dielectric Constant, 1 GHz

IEC 250

D 2520—

2.03

Dissipation Factor, 1 MHz

IEC 250

D 150—

0.0006

Dissipation Factor, 1 GHz

IEC 250

D 2520—0.0004

Dielectric Strength, Short Time, 0.25 mm (0.010 in) Film

IEC 243

D 149

kV/mm (V/mil)

80 (2,000)

THERMAL
Melting Point—

D 4591°C (°F)

255 (491)

ISO 4589—

D 2863
UL 94%—> 95V-0Water Absorption, 24 hr—

D 570%<0.01

Weather and Chemical Resistance———

Excellent

Limiting Oxygen Index
Flammability Classification
OTHER

3, 4

Note: Teflon™ FEP 9494 meets the requirements of ASTM D 2116, Type II.
Typical properties are not suitable for specification purposes.
Statements or data regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions.
1ASTM method unless otherwise specified.
2Historical standard.
3
These results are based on laboratory tests, under controlled conditions, and do not reflect performance under actual fire conditions.
4
Current rating is a typical theoretical value.

HOW TO USE THE TEFLON™ BRAND NAME WITH YOUR PRODUCTTeflon™ is a registered trademark of Chemours for its brand of fluoroplastic resins, coatings, films, and dispersions. The Teflon™ brand name is licensed by Chemours in association with approvedapplications. Without a trademark license, customers may not identify their product with the Teflon™ brand name, as Chemours does not sell such offerings with the Teflon™ trademark. Unlicensed
customers may refer to the Chemours product offering with only the Chemours name and product code number descriptor as Chemours sells its product offerings. There are no fair use rights or
exhaustion of rights to use the Teflon™ trademark from buying from Chemours, a Chemours customer, or a distributor without a trademark license from Chemours.
If you are interested in applying for a trademark licensing agreement for the Teflon™ brand, please visit www.teflon.com/license

CAUTION: Do not use or resell Chemours™ materials in medical applications involving implantation in the human body or contact with internal body fluids or tissues unless agreed to by Seller in a writtenagreement covering such use. For further information, please contact your Chemours representative. For medical emergencies, spills, or other critical situations, call (866) 595-1473 within the UnitedStates. For those outside of the United States, call (302) 773-2000.
The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, at their own
discretion and risk. The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present
no health or safety hazards. Because conditions of product use are outside our control, Chemours makes no warranties, express or implied, and assumes no liability in connection with any useof this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate under or arecommendation to infringe any patents.
NO PART OF THIS MATERIAL MAY BE REPRODUCED, STORED IN A RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS ELECTRONIC, MECHANICAL, PHOTOCOPYING, RECORDING OR OTHERWISEWITHOUT THE PRIOR WRITTEN PERMISSION OF CHEMOURS.

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Replaces: K-26521
C-10091 (3/20)