Teflon™ AF Solutions
Amorphous Fluoropolymer Solutions

Product Information
Product names may be followed by an X. Products labeled
AF 1601 and AF 1601 X are equivalent, as are AF 2400
and AF 2400 X.

Safety Precautions

Description

Before using Teflon™ AF 1601 or Teflon™ AF 2400, read theSafety Data Sheet and the detailed 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.plasticsindustry.org) orby PlasticsEurope (www.plasticseurope.org).

Teflon AF is a family of amorphous fluoropolymers. Thesematerials are similar to other amorphous polymers in opticalclarity and mechanical properties, including strength, butalso perform like fluoropolymers in their performanceover a wide range of temperatures, outstanding electricalproperties, and chemical resistance. Teflon™ AF solutions are
made of Teflon™ AF amorphous fluoropolymer dissolved inFluorinert® FC-40.
™

Applications
Teflon™ AF can be used as a low-refractive-index coatingor covering for optical devices, including those that must
operate over a wide temperature range and in chemicallyaggressive environments. Teflon™ AF offers a high level oftransmission throughout the optical spectrum from infrared
through ultraviolet.
In electronics, Teflon™ AF may be used in optoelectronic
devices, where its optical clarity, temperature resistance, anddielectric properties are beneficial.

Processing
Teflon™ AF 1601 is supplied as a 6% and 18% solution inFluorinert® FC-40. Teflon™ AF 2400 is supplied as a 1%
solution in Fluorinert® FC-40. These solutions can be castinto thin or thick pinhole-free coatings by a variety oftechniques, including spinning, spraying, brushing, anddipping.
Whichever coating methods are used, the coated productmust be heated above the Tg (160 °C [320 °F]) or (240 °C[464 °F]) to remove all solvent. This gives a smoother coatingand improves the polymer’s adherence to the surface. For
additional information on adhesion, see the Chemours
technical bulletin, “Adhesion Guide for Teflon™ AF.”WARNING! VAPORS CAN BE LIBERATED THAT MAY BE
HAZARDOUS IF INHALED.

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

Packaging and Storage
Developmental quantities of Teflon™ AF 1601 and Teflon™
AF 2400 solutions are packaged in 100 mL sealed glass
containers with foamed/carton overpack. Packaging
for production quantities will be designed to meetcustomer needs.
Teflon™ solutions are stable and do not have a shelf life. Thesolvent Fluorinert® FC-40 is thermally stable and resistant tohydrolysis. The boiling point of the solvent is 160 °C (320 °F).
The polymer is thermally stable to very high temperaturesand resistant to UV light. Package should be kept tightly
closed at all times to prevent contamination from dust
particles or other foreign substances.

Amorphous Fluoropolymer Solutions

Teflon™ AF Solutions

Other Information
Products listed on this technical data sheet comply with GB 30981-2020 "Limit of harmful substances in industrial protectivecoatings", and classified to section 5.1 special functional coatings - polytetrafluoroethylene type coatings which are sintered ata high temperature above 150 °C (chemical resistant, wear resistant, lubricated, non-stick, and other functions) they are
exempted from VOC limit requirements.

Table 1. Typical Property Data for Teflon™ AF Solution Grades
ASTM
MethodProperty

GradeUnit

1601

2400

1.93
0.0001–0.0002

1.90
0.0001–0.0003

>95
1.31

>95
1.29

26.9 ± 1.57.7 ± 6.1

26.4 ± 1.9
4.2 ± 1.8

Electrical
Dielectric ConstantDissipation Factor

D150
D150

Optical
Optical Transmission
Refractive Index

D1003
D542%

D638

MPa

MechanicalTensile Strength

Elongation at Break, 23 °C (73 °F)

D638

%

17.1 ± 5.0

7.9 ± 2.3

Tensile Modulus

D638

GPa

1.6

1.5

D570

DegreesDynes/cm%

104
15.7
<0.01

105
15.6
<0.01

D3418
D792
D1238
E831°C (°F)

160 (320) ± 5
1.78
6 ±4 (at 225 °C [437 °F])
260 (500)
0.19–0.22 at 6 wt%
Up to 18 wt%

240 (464) ± 10
1.67
13 ±4 (at 360 °C [680 °F])
301 (572)
0.09–0.1 at 1 wt%
Up to 1 wt%

ChemicalContact Angle with Water
Critical Surface Energy
Chemical Resistance—Water Absorption
OtherGlass Transition Temperature (Tg)
Specific Gravity
Melt Flow Rate (5.0 kg)
Volume Coefficient of Thermal Expansion
Brookfield Viscosity in Fluorinert® FC-40
Solubility in Fluorinert® FC-40 (at room™

g/10 minppm/°C (°F)
Pa·sec%

BRAND NAME WITH YOUR PRODUCT

Teflon™ is a registered trademark of Chemours for its brand of fluoropolymer 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© 2021 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.
Fluorinert® is a registered trademark of 3M.
Replaces: K-26989 C-10265 (3/21)