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Coating Solutions, Inc. - Properties of Dupont Teflon®




 Properties Desired

Units

PTFE

FEP

PFA

Teflon-S

Non-Stick

 --

Excellent

Excellent

Very Good

Very Good

Chemical Resistance

--

 Very Good

Excellent

Excellent

Good

Abrasion
Resistance

--

Good

Good

Very Good

Excellent

Salt Spray
Resistance

--

Good

Excellent

Excellent

Excellent

Water Absorption

percent

<0.01

<0.01

<0.007

--

Coef. of Friction
-Kinetic
-Static

 --


0.08
.1


0.08
.2


0.1
.2


0.1-0.4
.15-.35

Specific Gravity

 none

2.20

2.15

2.15

--

Melt Point

oF

627

500

575

 --

Hardness

Shore D

60

55

60

60-90

Max Continuous
Use Temperature

oC
oF

290
550

204
400

260
500

150-260
300-500

Thermal
Conductivity

(BTU)

1.70

1.35

1.30

--

Coef. of Linear
Thermal Expansion

in/in/oF

5.5

5.4

7.6

--

Dielectric (short term
Strength 10 mil film)

volts/mil

1200

2000

2000

Up to 1400

Surface Resistivity

ohms/sq.

1.OE18

1.OE18

1.OE18

--

Volume Resistivity

ohms cm.

1.OE18

1.OE16

1.OE16

--

Tensile Strength

MPa@23o C

20

23

25

20-80

Elongation at Break

percent at 23oC

 300

325

300

1-160


A variety of manufacturing components are coated to improve performance and solve engineering problems.

Property

Possible Applications

Coatings

 

 

 

 

 

 

Non-Stick

  • Plastic Rubber Molds
  • Heat Seal Bars
  • Copier Rolls
  • Dryer Drums

Low Friction

  • Bushings
  • Shafts
  • Pistons
  • Valves
  • Blades
  • Engine Parts

Corrosion Resistance

  • Tanks & Pumps
  • Auto Parts
  • Chemical Mixers
  • Valves
  • Fasteners

High Low Temperature Resistance

  • Light Bulbs
  • High Temp Bearings
  • Cryogenic Exposure
  • Freezer Drawer Slides

Non-Wetting

  • Fuel Filter Screens
  • Oil Spill Cleanup
  • Spray Can Cups
  • Capacitors

Electrical Insulation

  • Electrical Insulators
  • Electrical Switches
  • Wire Coating

FDA Conforming

  • Food Processing
  • Equipment
  • Commercial Bakeware
  • Cutting Blades
  • Conveyors
  • Molds
  • Griddles

Abrasion Resistance

  • Chemical Tanks
  • Impellers
  • Flanges
  • Sawblades

 

 

Teflon® is a registered trademark of E.I. du Point de Nemours and Company used under license.                 Contact Us | Home >