ETFE Properties
Ethylene Tetrafluoroethylene
| Properties | Units / ASTM | ETFE |
|---|---|---|
| MECHANICAL PROPERTIES | ||
| Specific Gravity | D792 | 1.74 |
| Elongation % | D638 | 420 - 460 |
| Tensile Strength (psi) | D638 | 6,100 - 6,800 |
| Flexural Strength (psi) | D790 | 5,500 |
| Compressive Strength | D695 | 2,500 |
| Tensile Elastic Modulus (Young's Modulus) (psi) | D638 | 85,000 - 95,000 |
| Flexural Modulus 103MPa (103kgf/cm2) | D790 | 128,000 - 171,000 |
| Flex Life (MIT cycles) | D2176 | 10,000 - 27,000 |
| Hardness Durometer Shore D | D636 | D75 |
| Coefficient of Friction on steel | .06 | |
| Abrasion Resistance 1000 revs. | Taber | N/A |
| Impact Strength IZOD 73°F/23°C, notched ft/lbs/in | D256 | No Break |
| THERMAL PROPERTIES | ||
| Melting Point | °F | 512 |
| Upper Service Temperature (20,000h) | °F | 302 |
| Flame Rating | UL 94 | V-O |
| Thermal Conductivity | BTU/hr/ft2/deg °F in | 1.65 |
| Linear Coefficient of Thermal Expansion | D696 | 13 |
| Heat of Fusion | BTU/LB | 20 |
| Heat of Combustion | BTU/LB | 8,100 |
| Low Temperature Embrittlement | °F | -148 |
| ELECTRICAL PROPERTIES | ||
| Dielectric Constant | D150/103Hz ( 106Hz ) | 2.6 |
| Dielectric Strength 10 mil film | D149 | 1,600 |
| Volume Resistivity ohm-cm | D257 | >10^16 |
| Surface Resistivity ohm/sq. | D257 | >10^15 |
| GENERAL PROPERTIES | ||
| Chemical/Solvent Resistance | D543 | Excellent |
| Water Absorption, 24hr / % | <.03 | |
| Deformation Under Load | D621/110°C | 5.4 |
| Refractive Index | 1.40 | |
| Limiting Oxygen Index % | >95 | 31 |