FEP Dupont, Chemours FEP

FEP, Fluorinated Ethylene Propylene, has all the desirable properties of TFE (PTFE) but with a lower service temperature of 200 degrees C (392 degrees F). Unlike TFE, FEP can be injection molded and extruded by conventional methods into FEP rods, FEP tube, FEP Film, FEP Sheet and special profiles. This becomes a design and processing advantage over TFE.

What is FEP material?

FEP plastic is a copolymer of tetrafluoroethlene and Hexafluoropropylene. This melt-processible fluoropolymer exhibits excellent resistance to heat, wear and chemicals. Polymer Plastics offers besides Dupont FEP, Daikin Neoflon FEP and Chemours FEP.

It is like PTFE in that it is a soft material with low tensile strength, and low wear resistance. FEP is chemically inert and insoluble in all but a few exotic solvents. Like TFE, FEP is manufactured by DuPont/Chemous and sold under the name of FEP.

In direct comparison to TFE, FEP material has a lower heat resistance (-400 degrees F to +392 degrees F), a higher coefficient of friction and poorer wear resistance. They are similar in their electrical properties, chemical inertness, strength, moisture absorption, and anti-stick characteristics.

Applications include electronic items such as wire covering and FEP spaghetti tubing, FEP linings for pipes in the chemical industry, aircraft wiring, and glazing for solar energy collectors.

See "Properties", Applications" and "Availabilities" for the FEP Sheet and Rod at the bottom of this page.

TO ORDER FEP Sheet or Rod
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  FEP Sheet
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minimums may apply
Sheet Thickness:  
Sheet Color:  
Plastic Type:  
Custom Sheet:  
Width Inches   Length Inches   Cut Tolerance:   Round Blanks
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Total Price:  $
  FEP Rod
Rod Length (ft):  
Rod Diameter:  
Rod Color:  
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Total Price:  $
Order Summary Grand ToTal: $

Minimum $75.00 for internet orders. Orders less than $75.00 will be charged a $25.00 service charge.
The price given on this page is a material quote only. It does not include the additional shop processing fees.


Properties, Applications and Availabilities for the FEP Sheet and Rod




Heat resistant Wire insulating Rod: .125" to 6.00"
Chemically inert Chemical fluid handling Sheet: .093" to 2.00"
Excellent electrical properties Medical tubing FEP Film: .003" to .060"
Zero moisture absorption "O" Rings FEP Tube
Transparent Seals FEP Tubing: See fluid handling tubing
Radiation resistant Gaskets Standard Color: Translucent white
Very Low gas permeation and outgassing Semi Conductor equipment  
Outdoor UV Resistant Hostil Environments  
Hot Air weldable for tanks Food Processing  
  Microwave insulation  
    FEP Sheet Sizes Available
    minimums may apply
Specifications   3" x 3" - .002, .005 thickness
ASTM D211683   6" x 6" - .010 thickness
LP 389A   6" x 12" - .015 thickness
    12" x 12"
    12" x 24"
    18" x 18"
    24" x 24"
View FEP Data Sheet    
View Floropolymer MSDS Sheet    


ASTM D 2116 (types I, II, III, or IV)
FDA and USDA 21 CFR-177.1550         3A Sanitary Standard 20-17         USP Class VI