Polytetrafluoroethylene Resin
Teflon can be used in a variety of applications having a combination of mechanical, electrical, chemical, temperature and anti-friction properties that are unmatched. PTFE has a very high melting point and is capable of continued service at 500 ℉ (260 ℃). It is the most chemically resistant plastic available and only a few chemicals react with it. PTFE mechanical properties are low compared to other engineering plastics, but its integrity is maintained over a wide temperature range; from -400°F to 500°F (-240 to 260°C). Mechanical properties can be improved by the addition of fillers such as glass fiber, carbon, graphite, molybdenum disulfide, and bronze. PTFE has excellent thermal and electrical insulation properties along with a low coefficient of friction. It is difficult to bond to PTFE.
Benefits
- High chemical resistance
- Low and high-temperature capability
- Resistance to weathering
- Low friction
- Electrical and thermal insulation
- Anti-stick surface
Applications
- Gaskets
- Packing materials exposed to chemicals
- Bearings
- Seals
- Piston rings
- Electrical insulation
PTFE | Teflon Properties Chart
| UNITS | ASTM TEST | PETG | |
| Tensile strength | psi | D638 | 3,900 |
| Flexural Modulus | psi | D790 | 80,000 |
| Izod impact (notched) | ft-lbs/in of notch | D256 | 3.5 |
| Heat deflection temperature @ 264 psi | °F | D648 | 132 |
| The coefficient of linear thermal expansion | in/in/°Fx10-5 | D696 | 7.5 |
Values may vary. Please ask your Erie Industrial Plastics representative for more specific information.
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