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Teflon® Coatings — Six Basic Types

DuPont™ Teflon® industrial coatings can be used on carbon steel, aluminum, stainless steel, steel alloys, brass, and magnesium, as well as non-metallics such as glass, fiberglass, some rubber, and plastics. Optimum adhesion is obtained by roughening the surface before applying the coating. Except where specifically mentioned, most Teflon® coatings for industrial use require a primer coat.

DuPont™ Teflon® Industrial Coatings Portfolio

1. Teflon® PTFE

PTFE (polytetrafluoroethylene) nonstick coatings are two-coat (primer/topcoat) systems. These products have the highest operating temperature of any fluoroplastic (260°C/500°F), an extremely low coefficient of friction, good abrasion resistance, and good chemical resistance. PTFE is available only in water-based liquid form.

2. Teflon® FEP

FEP (fluorinated ethylene propylene copolymer) nonstick coatings melt and flow during baking to provide nonporous films. These Teflon® coatings provide excellent chemical resistance. In addition to low friction, FEP coatings have excellent nonstick properties. Maximum use temperature is 204°C/400°F. FEP is available in water-based liquid and powder forms.

3. Teflon® PFA

Like FEP, PFA (perfluoroalkoxy) nonstick coatings melt and flow during baking to provide nonporous films. PFA offers the additional benefits of higher continuous use temperature (260°C/500°F), film thicknesses up to 1,000 micrometers (40 mils), and greater toughness than PTFE or FEP. This combination of properties makes PFA an excellent choice for a wide variety of uses, especially those involving chemical resistance. PFA is available in both water-based liquid and powder forms.

4. Tefzel® ETFE

ETFE is a copolymer of ethylene and tetrafluoroethylene and is also sold under the Tefzel® trademark. Although not fully fluorinated, ETFE has excellent chemical resistance and can operate continuously at 149°C/300°F. This resin is the toughest of the fluoroplastics and can be applied at film builds up to 1,000 micrometers (40 mils) to provide a highly durable finish. ETFE is available in powder form.

5. Teflon® One Coat

These solvent-based liquid coatings are formulated with special blends of fluoroplastics and other high-performance resins to improve toughness and abrasion resistance. Because the film components stratify during baking, most of the fluoroplastic properties (such as low friction and nonstick character) are retained. The resins provide adhesion and abrasion resistance. These products can sometimes be applied to smooth, clean metal. Bake requirements vary, depending on the specific coating.

6. Teflon® Dry Lubricant

Dry lubricant coatings are special versions of Teflon® technology designed to provide lubrication under high-pressure/velocity (PV) conditions. These products are solvent-based, one-coat systems that are usually cured between 260°C/500°F and 371°C/700°F.

DuPont™ Teflon® Industrial Coatings Portfolio


  PTFE
Based
FEP
Based
PFA
Based
ETFE
Based
One Coats Specialties

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Topcoats
851G line
852G line


Acid Primers*

* New line to be announced
Topcoats
856G-2xx line
Topcoats
857G-2xx line
858G-9xx
Primers
699N line
857G-xxx line 3-Coat Conductive & Nonconductive
855G line

2-Coat Reinforced
857G-xxx

3-Coat Standard
857G-xxx

3-Coat Reinforced
857G-xxx
 
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  Topcoats
953G-401

Primers
953G-506
959G-2xx line
Primers
420G-703
  420G-1xx line
954G line
959G line
 
 
P
o
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d
e
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  Topcoats
532G-8xxx line
Topcoats
532G-5xxx line
532G-7xxx line
Topcoats
532-6xxx line

Primers
532-6006
532-1003  
 
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Fuel Filters, Heat Exchangers, Carburetor Shafts, Ball Valves, Bearings, Filters, Cryogenic, Aerospace Plastic Molds, Food Processing, Rocket Engines, Textile Dry Cans, Heat Seal Bars, Chemical Chemical Impellers, Mixing Tanks, Valves, Pumps, Laundry Dryers, High-Temperature Molds Tank Linings, Pumps, Impellers, Flanges, Conveyor Chutes, Exhaust Ducts, Electrical Insulators Engineer Parts, Fan Blades, Garden Tools, Waffle Irons, Conveyors, Automotive Fasteners, Fuel Injectors, Saw Blades Copiers, Printers, Commercial Food





TRADEMARK DISCLAIMER:
Teflon® is a registered trademark of DuPont for our brand of fluoropolymer resins. The Teflon® brand name is licensed by DuPont in association with approved applications. Without a trademark license, customers may not identify their product with the Teflon® brand name. Unlicensed customers may refer to the DuPont product offering with only the DuPont product code number and product identifier name or descriptor as DuPont sells its product offerings. There are no fair use rights to use the Teflon® trademark by buying from DuPont, a DuPont customer or a distributor without a trademark license from DuPont.

All references of the Teflon® trademark herein are then provided for possible licensing opportunities available behind each identified resin type depicted. If you are interested in applying for our trademark licensing agreement contact DuPont.