ISO 9001:2015 Certified | Cage Code: 7L0f6
TYPICAL PROPERTIES of PTFE |
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| ASTM or UL test | Property | PTFE (unfilled) |
PTFE (25% glass filled) |
PTFE (25% carbon filled) |
| PHYSICAL | ||||
| D792 | Density (lb/in³) (g/cm³) |
0.078 2.16 |
0.081 2.25 |
0.075 2.08 |
| D570 | Water Absorption, 24 hrs (%) | < 0.01 | 0.02 | 0.05 |
| MECHANICAL | ||||
| D638 | Tensile Strength (psi) | 3,900 | 2,100 | 1,900 |
| D638 | Tensile Modulus (psi) | 80,000 | – | – |
| D638 | Tensile Elongation at Break (%) | 300 | 270 | 75 |
| D790 | Flexural Strength (psi) | No break | 1,950 | 2,300 |
| D790 | Flexural Modulus (psi) | 72,000 | 190,000 | 160,000 |
| D695 | Compressive Strength (psi) | 3,500 | 1,000 | 1,700 |
| D695 | Compressive Modulus (psi) | 70,000 | 110,000 | 87,000 |
| D785 | Hardness, Shore D | D50 | D60 | D62 |
| D256 | IZOD Notched Impact (ft-lb/in) | 3.5 | – | – |
| THERMAL | ||||
| D696 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
7.5 | 6.4 | 6.0 |
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
132 / 55 | 150 / 65 | 150 / 65 |
| D3418 | Melting Temp (°F / °C) | 635 / 335 | 635 / 335 | 635 / 335 |
| – | Max Operating Temp (°F / °C) | 500 / 260 | 500 / 260 | 500 / 260 |
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
1.70 5.86 |
3.1 10.6 |
4.5 15.5 |
| UL94 | Flammability Rating | V-O | V-O | V-O |
| ELECTRICAL | ||||
| D149 | Dielectric Strength (V/mil) short time, 1/8″ thick | 285 | – | – |
| D150 | Dielectric Constant at 1 MHz | 2.1 | 2.4 | – |
| D150 | Dissipation Factor at 1 MHz | < 0.0002 | 0.05 | – |
| D257 | Volume Resistivity (ohm-cm)at 50% RH | > 1018 | > 1015 | 104 |
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets.