Polytetrafluoroethylene (PTFE) is a high molecular weight polymer with excellent thermal and electrical insulation properties, and a low coefficient of friction. It is a highly versatile plastic material useful in a broad range of high technology market segments and products, and its properties can be modified by additives such as glass fiber, carbon, or graphite.
Benefits of PTFE
High thermal resistance
Chemical resistant
Very low coefficient of friction
High anti-stick properties
Non-toxic
Available modified and filled
Available in shapes and films
Available in flexible tubing
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Suppliers / Brands
Common Applications
Aerospace
Automotive
Bearings and Bushings
Building & Construction
Chemical Processing
Die Cutters
Enclosures
Food and Beverage Preparation and Processing
Gaskets and Seals
Heavy Equipment
Machine Shops
Milling and Mining
Oil and Gas
Packaging and Conveying Equipment
Valves and Fittings
Physical Properties
| Units | ASTM Test | PTFE | |
|---|---|---|---|
| Tensile strength @ break @ 73°F | psi | D638 | 1,960 – 5,100 |
| Flexural modulus @ 73°F | psi | D790 | 50,000 – 90,000 |
| Izod impact (notched) | ft-lbs/in of notch | D256 | 3.5 |
| Coefficient of linear thermal expansion (CLTE) | (in/in F) | D696 | 4.8E-05 to 7.9E-5 |
| Coefficient of friction | D1894 | 0.0 46 – 0.2 | |
| Water absorption – 24 hours – 1/8″ thick | 0.036 – 0.11% | D570 | 0.0 – 0.01 |
| Deflection Temperature Under Load @ 264 psi | °F | D648 | 145 |
* Technical Data is provided courtesy of UL Prospector (www.ulprospector.com) and IAPD (www.IAPD.org).
Data is to be considered representative and is provided for guidance only. All product performance must be verified by the user under actual application conditions.
