Tefzel™ ETFE
Fluoropolymer Film

Properties Bulletin
Description

Mechanical Toughness

Tefzel ETFE film is a transparent, thermoplastic film thatcan be heat sealed, thermoformed, vacuum formed, heatbonded, welded, metallized, laminated (combined withdozens of other materials), and used as an excellent hotmelt adhesive. This wide variety of fabrication possibilities
combines with the following important properties to offer
a unique balance of capabilities not available in otherplastic films.

• Superior anti-stick and low frictional properties

Chemical Compatibility• Tefzel™ ETFE film contains no plasticizers or otherforeign materials.

™

Tefzel™ ETFE film is chemically inert and solvent-resistantto virtually all chemicals, except molten alkali metals,
gaseous fluorine, and certain complex halogenatedcompounds, such as chlorine trifluoride, at elevatedtemperatures and pressures. It also has low permeability
to liquids, gases, moisture, and organic vapors.
Electrical Reliability• Superior reliability and retention of properties overlarge areas of film
• High dielectric strength, over 160 kV/mm for0.025-mm film (4000 V/mil for 1-mil film)• No electric tracking, non-wettable, and non-charring• Very low power factor and dielectric constantWide Thermal Range• Continuous service temperature: –100 to 150 °C(–150 to 300 °F)• Melting range: 260 to 280 °C (500 to 536 °F)• High resistance to impact and tearing
Long Time Weatherability*• Inert to outdoor exposure• High transmittance of ultraviolet and all, but far, infrared
Reliability• Conventional equipment and techniques can be used
for processing; basic composition and properties will
not be influenced.
• Rigid quality control by Chemours ensures uniform
gauge, void-free film.
Tefzel™ ETFE Film
The convenience of Tefzel™ ETFE fluoropolymer ineasy-to-use film facilitates the design and fabricationof this low friction thermoplastic for all sorts of highperformance jobs. It is transparent and can be heatsealed, thermoformed, welded, and heat bonded. Superioranti-stick properties make it an ideal release film formany applications. A cementable type with an invisible
surface treatment is available for bonding to one orboth sides with adhesives. This versatility is augmentedby the superior properties of a true melt-processible
fluoropolymer and the wide choice of product dimensions
available from Chemours.

• Heat sealable*Type C film is not recommended for outdoor use.

Tefzel™ ETFE

Fluoropolymer Film

Table 1: Typical Properties of Tefzel™ ETFE Fluoropolymer Film
Typical Value**
Property

Test Method*

SI Units

English Units

D882

41 MPa6000 psi

MechanicalTensile Strength at BreakElongation at Break

D882

Flex Modulus

D882

300%

Folding Endurance (MIT)D2176

Tear Strength—Initial (Graves)D1004

4.90 N

500 g

Tear Strength—Propagating (Elmendorf)

D1922

0.74 N

75 g

D3418

260–280 °C

500–536 °F

Cenco-Fitch

0.24 W/(m·K)

1.65 Btu·in/(hr·ft2·°F)—1172 J/(kg·K)

0.28 Btu/(lb·°F)

830 MPa

120,000 psi
50,000 cycles

ThermalMelt Point
Thermal Conductivity
Specific Heat
Dimensional Stability
Oxygen Index

30 min at
150 °C (302 °F)

MD = 1% shrinkage
TD = 5% shrinkage

D2863

30%Electrical
Dielectric Strength, short-time, in air at 23 °C (73 °F), 6.35 mm(1/4 in) diameter electrode, 0.79 mm (1/32 in) radius, 60 Hz, 500 V/srate of rise: 0.025 mm (1 mil) film

D149 Method A

160 kV/mm

4000 V/mil

Dielectric Constant, 25 °C (77 °F), 1 KHz

D150

2.6Dissipation Factor, 25 °C (77 °F), 1 KHz

D150

0.0007

Volume Resistivity, 170 °C (338 °F)

D257>1 x 1017 ohm·cm

Moisture Absorption—<0.02%

Permeability, Gas:
Carbon Dioxide
Nitrogen
OxygenD1434

cm3/(m2·24 hr·atm)***3.9 x 103
0.5 x 103
1.6 x 103

Permeability, Vapor:
Water

E96g/(m2·d)
7.8g/(100 in2·24 hr)
0.5

Density

D1505

1700 kg/m3

106 lb/ft3

Coefficient of Friction Kinetic (Film-to-Steel)D1894

0.2–0.3

Refractive Index

D542

1.4

Solar Transmission

E42490%ChemicalGeneral*ASTM method, unless otherwise specified**For 0.050-mm (2-mil) film at 25 °C (77 °F), unless otherwise specified***To convert to cm3/(100 in2·24 hr·atm), multiply by 0.0645

Fluoropolymer Film

Tefzel™ ETFE

Table 2: Types and Gauges of Tefzel™ ETFE Fluoropolymer Film
Gauge50

100200500Thickness, mil

0.5

12512.5

2550

125Approx. area factor, ft /lb200

1005020Approx. area factor, m /kg

4020104

Type LZ—ETFE, general-purpose

XXXX

Type CLZ—ETFE, one side cementable—XXX

Type CLZ-20—ETFE, both sides cementable—XX—Thickness, µm
22Availability

Note: Each roll of Tefzel™ film is clearly identified as to resin type, film thickness, and film type.
ETFE

200

CLZResin type

Film thickness, 200 gauge, 2 mil

Film type, cementable one side

Tefzel™ ETFE

Fluoropolymer Film

HOW TO USE THE TEFZEL™ BRAND NAME WITH YOUR PRODUCTTefzel™ is a registered trademark of Chemours for its brand of ETFE fluoropolymer resins. The Tefzel™ brand name is licensed by Chemours in association with approved applications.
Without a trademark license, customers may not identify their product with the Tefzel™ brand name as Chemours does not sell such offerings with the Tefzel™ 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 fairuse rights or exhaustion of rights to use the Tefzel™ 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 Tefzel™ brand, please visit 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 use of this information. As with anymaterial, 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 a recommendation 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/tefzel
For sales and technical support contacts, visit teflon.com/industrialglobalsupport© 2017 The Chemours Company FC, LLC. Teflon™, Tefzel™ and any associated logos are trademarks or copyrights of The Chemours Company FC, LLC. Chemours™ and the Chemours
Logo are trademarks of The Chemours Company.
Replaces: K-26943
C-10201 (9/17)