Teflon™ AF

Amorphous Fluoroplastic Resins

Product Information
Product names may be followed by an X. Products labeled AF
1600 and AF 1600 X are equivalent, as are AF 2400 and AF
2400 X.

be advantageous in the construction of electronic devices, including
special circuit boards and hybrid devices.

Description• Teflon™ AF has the ability to be cast from solution into a thin filmthat is transparent and stable to very short wavelength radiation(deep UV). This makes it an excellent candidate for use inpellicles. It has superior electrical properties, particularly for low
signal distortion at high frequencies.

Teflon™ AF is a family of amorphous fluoroplastics. Thesematerials are similar to other amorphous polymers in opticalclarity and mechanical properties, including strength. They also
resemble fluoroplastics in their performance over a wide rangeof temperatures, outstanding electrical properties, and chemicalresistance. They are distinct from other fluoroplastics in that they
are soluble in selected solvents and have high gas permeability, highcompressibility, high creep resistance, and low thermal conductivity.
They have the lowest dielectric constant and refractive index of anyknown fluoroplastic.

Processing
Teflon™ AF can be compression molded, injection molded, orextruded. Through these processes, various solid shapes can beformed using the product. Forms include rods, tubes, bars, andsheet of various thicknesses.
In addition, Teflon™ AF can be dissolved in certain perfluorinatedsolvents for the production of highly uniform thin films andcoatings. Methods used to produce such forms include spin,spray, and dip coating.
Typical molding temperatures for Teflon™ AF 1600 range from240 to 275 °C (464 to 527 °F); for Teflon™ AF 2400, the range
is 340 to 360 °C (644 to 680 °F). The polymer begins todecompose above 360 °C (680 °F), so processing above thattemperature should be avoided. Corrosion-resistant tooling is
recommended, as it is for Teflon™ FEP and PFA fluoroplastic
resins.

Electrical Applications
In electronics, Teflon™ AF may be used in optoelectronic devices,where its optical clarity, temperature resistance, and dielectric
properties are beneficial. It is essentially transparent tomicrowaves and can function as a “window” for high frequency
antennas. The low dielectric constant and dissipation factor may

Some specific uses are:• Chemically resistant coating—where its low dielectric constantand electrical absorption coefficient are important.
• Its moldability plus its low thermal expansion coefficient make it
an excellent candidate for connectors.
• It can also be used as a sight window in harsh chemicalenvironments.

Optical Applications
Teflon™ AF can be used as a low-refractive index coating or covering
for optical devices, including those that must operate over a wide
temperature range and in chemically aggressive environments.
Teflon™ AF offers a high level of transmission throughout the optical
spectrum from infrared through ultraviolet.
Some specific uses are:
• In fiber optics as a low refractive index, high temperature cladding
material over silica, methacrylates, and polycarbonates.
• Its optical properties of high transmission and broad spectrum
transmission make it practical as an anti-reflective coating for highenergy laser applications.
• The properties of high temperature tolerance, chemical
resistance, high transmission, and mechanical strength makethe material ideal for use as a window. It would also be good for
optical sensing and diagnostic devices.
• The low refractive index combined with its other opticalproperties make Teflon™ AF useful as an anti-reflective coating. It
is also good as a protective coating, where optical transmission isimportant.

Amorphous Fluoroplastic Resins

Teflon™ AF

Typical Property Data for Teflon™ AF Resins

Property

ASTM
MethodGradeUnit

1600

2400

kV/0.1 mm

1.93
0.0001–0.0002
2.1

1.90
0.0001–0.0003
1.9>95
1.31
92>95
1.29
113

27.4 ± 1.0
6.7 ± 5.9

26.4 ± 1.9
8.7 ± 4.0

26.9 ± 1.5
7.7 ± 6.1

26.4 ± 1.9
4.2 ± 1.8

17.1 ± 5.0
89.3 ± 13.1

7.9 ± 2.3
8.4 ± 4.1

1.6

1.5

1.8 ± 0.1
1.0 ± 0.1

1.6 ± 0.1
0.7 ± 0.1

103

97.5

77
70

75
65

——

156 (313)
154 (309

200 (392)
174 (345)

DegreesDynes/cm
cc/2000 cycles

104
15.7
0.107

105
15.6
0.2%

<0.01

<0.01

BarrerBarrerBarrerBarrer

1142
340
130

4,026
990
490
2800

°C (°F)160 (320) ± 5
1.78
4 ±2 (at 260 °C [500 °F])
260 (500)240 (464) ± 10
1.67
13 ±4 (at 360 °C [680 °F])
301 (572)

Electrical
Dielectric ConstantDissipation Factor
Dielectric Strength

D150
D150
D149

Optical
Optical Transmission
Refractive Index
ABBE Number

D1003
D542%

Mechanical
MPa

Yield Strength
23 °C (73 °F)
220 °C (428 °F)
Tensile Strength
23 °C (73 °F)
220 °C (428 °F)

D638

Elongation at Break
23 °C (73 °F)
220 °C (428 °F)

D638

Tensile Modulus

D638

GPa

Flexural Modulus
23 °C (73 °F)
220 °C (428 °F)

D790

GPa

Hardness
Rockwell, 23 °C (73 °F)
Durometer, Shore D23 °C (73 °F)
220 °C (428 °F)
Impact Strength
Deflection Temperature
66 psi
264 psi

MPa%

D785
D1706

Notched IzodN

D648°C (°F)

ChemicalContact Angle with Water
Critical Surface Energy
Taber Abrasion
Chemical Resistance
Water Absorption
Gas Permeability
H2O
O2
N2
CO2

D570

OtherTg
Specific Gravity
Melt Flow Rate (5.0 kg)
Volume Coefficient of Thermal Expansion

D3418
D792
D1238
E831

g/10 minppm/°C (°F)

Teflon™ AF

Amorphous Fluoroplastic Resins

Mechanical Applications• Process windows—where optical properties as well as
chemical inertness are important.

Teflon™ AF exhibits excellent mechanical and physical properties
at end-use temperatures up to the glass transition temperature.
Teflon™ AF also demonstrates good dimensional stability, reduced
mold shrinkage, a smooth surface, and rigidity at high use
temperatures. These characteristics, coupled with machinability
and processing versatility, make Teflon™ AF an excellent
candidate for specialized chemical and industrial applications.
Some specific uses are:
• For chemically resistant molded parts and objects• Sight windows in harsh chemical environments• Connectors

Chemical Applications
As a fluoroplastic, Teflon™ AF has high resistance to chemical
attack. Teflon™ AF can be fabricated into films, coatings, andsmooth surfaced products, and also molded into high performancemechanical parts that can function in severe exposure conditions ofhigh temperature, harsh chemicals, and destructive environmental
agents. Teflon™ AF is an excellent candidate for the demanding andstringent conditions that exist in the electronic, chemical, military,and aerospace industries.
Some specific uses are:• As a protective coating—where chemical resistance as well as
the ability to withstand high temperatures is important: pipes
and fittings; conveyor belts; sheets that are in contact withchemicals.
• Chemical containers (for specialty applications)—where it isnecessary that the container not react with the contents andoptical transmission is important: stopper coatings; bottles(can be shaped).

• Membranes and/or separators—the high gas permeability andchemical inertness make it an ideal candidate.
• Its low surface energy makes a good release surface.
• Its high gas permeability makes it an excellent separation
medium for gases and liquids.

Safety Precautions
WARNING! VAPORS CAN BE LIBERATED THAT MAY BE HAZARDOUS
IF INHALED.
Before using Teflon™ AF, read the Safety Data Sheet anddetailed information in the latest edition of the “Guide to
the Safe Handling of Fluoropolymer Resins”, published by
the Fluoropolymers Division of The Society of the Plastics
Industry (www.fluoropolymers.org) or by PlasticsEurope(www.plasticseurope.org).

Handling Practices
Teflon™ AF resins may contain parts per million of residual
hexafluoroacetone (HFA). Because HFA hydrates are readily
absorbed through the skin, it is necessary to avoid skin contact
with the resin during processing. Chemours recommends the useof protective gloves when handling resin during manufacturing
operations. Residual gases (including HF, COF2, CO, and HFA)
that diffuse from Teflon™ AF resins, even at room temperature,
may be harmful. To avoid exposure, all resin containers should beopened and used only in well-ventilated areas using local exhaust
ventilation (LEV).

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 Chemours materials in medical applications involving permanent implantation in the human body or contact with bodily fluids or tissues, unless the material has been provided fromChemours under a written contract that is consistent with Chemours policy regarding medical applications and expressly acknowledges the contemplated use. For further information, please contact
your Chemours representative. For medical emergencies, spills, or other critical situations, call (866) 595-1473 within the United States. 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© 2016 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-26985
C-10233 (9/16)