Teflon™ PTFE 7C X
Granular Fluoroplastic Resin

Product Information
Description
Teflon PTFE 7C X is a white powder with a small particlesize. The small particle size of Teflon™ PTFE 7C X helps tominimize voids, even at relatively low molding pressures. Its
most unique feature is the irregular, fibrous character of theparticles. The fibrous particles promote good capture anduniform distribution of inorganic fillers when they are added
to modify the mechanical properties of moldings. It offers an
excellent combination of properties that are characteristic ofTeflon™ fluoroplastic resins:™

• Chemical inertness• Exceptional dielectric properties• Heat resistance• Toughness and flexibility• Low coefficient of friction• Non-stick characteristics

Many end products are made with filled compounds basedon Teflon™ PTFE 7C X. The filled compounds provide a wide
choice of modified mechanical properties.

Processing
Teflon™ PTFE 7C X is processed in two steps: preforming andsintering. The powder is first compacted into a preformed
shape approximating that of the desired molding. A precise
heating (sintering) and cooling cycle is then used toconsolidate the molding at temperatures above the crystalline
melting point of the neat powder. The properties of a finishedmolding are dependent on preform pressure, sintering time
and temperature, and cooling rate. Teflon™ PTFE 7C X isused to make relatively large objects in molds that can be
filled manually. Small particle resins do not flow properly in
automatic feeding systems. Refer to the typical property data
in Table 1.

• Negligible water absorption

Food Contact Compliance• Excellent weather resistance

Properly processed products (sintered at high temperaturescommon to the industry) made from Teflon™ PTFE 7C X resin
can qualify for use in contact with food in compliance withFDA 21 CFR 177.1550 and European Regulation (EU) No.
10/2011. For details and information, please contact yourChemours sales representative.

Teflon™ PTFE 7C X is preferred for moldings requiring
optimum mechanical and electrical properties. Its low bulk
density limits the size of moldings from a given mold or press
opening. It is often preferred for making filled compounds,
especially with metal powders that are difficult to mix
because of density differences.

Typical Applications
Many end products are fabricated, which include skived filmand sheet. It can be used for applications, such as:• Gasket• Bridge or pipeline bearing pads
• Piston rings• Diaphragms

Safety Precautions
Before processing any fluoroplastics, read the Material
Safety Data Sheet, available upon request from ourCustomer Service Group at (844) 773-CHEM/2436 in theU.S. or (302) 773-1000 outside of the U.S. Also read thedetailed information in the latest edition of the “Guide tothe Safe Handling of Fluoropolymer Resins,” published bythe Fluoropolymers Division of The Society of the Plastics
Industry (www.fluoropolymers.org) or by PlasticsEurope(www.plasticseurope.org).

Teflon™ PTFE 7C X

Granular Fluoroplastic Resin

Storage and Handling

Packaging

Preforming is easiest when the resin is uniformly between
21–27 °C (70–80 °F). As temperatures decline below thisrange, the resin will be increasingly difficult to mold without
cracks and problems with condensed moisture. Higher
temperatures inhibit flow and promote lumping. Storage
conditions should be set accordingly. Cleanliness is a criticalrequirement for successful use of Teflon™ PTFE 7C X. The
white resin and high sintering temperatures cause evensmall foreign particles to become visible in finished moldings.
Keep resin drums closed and clean. Good housekeeping andcareful handling are essential.

Teflon™ PTFE 7C X is packaged in 45-kg (100-lb) drums.
Each drum has a bag liner made of polyethylene resin.

Freight Classification
Teflon™ PTFE 7C X, when shipped by rail or express, isclassified “Plastics, Synthetic, O.T.L., NOIBN.” Resin shippedby truck is classified “Plastics, Materials Granules.”Typical Property Data for Teflon™ PTFE 7C X Granular Fluoroplastic Resin
Property

Test Method

Unit

Typical Valueµm31

Particle Size, Average Diameter

ISO 13320

ASTM D4894

Standard Specific Gravity

ISO 12086

ASTM D4894

Bulk Density

ISO 12086

ASTM D4894

g/L

260

ISO 12086

ASTM D4894

psi (MPa)

5700 (39.3)

ISO 12086

ASTM D4894%350

InitialISO 12086

ASTM D4894°C (°F)342 ± 10 (647 ± 10)

Second°C (°F)

327 ± 10 (621 ± 10)

Tensile Strength1
Elongation at Break1

2.16

Melting Peak
ISO 12086

ASTM D4894

Thermal Instability Index

ISO 12086

ASTM D4894

Water Content

ISO 12086

ASTM D4894

3.4%

<0.04

Note: Teflon™ PTFE 7C X meets the requirements of ASTM D4894-15, Type II.
Typical properties are not suitable for specification purposes.
Measured on skived tapes with a thickness of 0.13 mm.

1

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 approved applications.
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 tothe 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 bodily 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.

For more information, visit teflon.com/industrial
For sales and technical support contacts, visit teflon.com/industrialglobalsupport© 2020 The Chemours Company FC, LLC. Teflon™ and any associated logos are trademarks or copyrights of The Chemours Company FC, LLC. Chemours™ and the Chemours Logo aretrademarks of The Chemours Company.
Replaces: K-26149
C-10123 (3/20)