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ECTFE Halar Pall rings
Halar® has excellent corrosion and chemical resistance and performs in many applications up to 300°F (149°C). Made from the toughest of all fluoropolymers, this material has nylon-like durability with excellent mechanical properties and impact strength. In addition, it has extremely low permeability to liquids, gases, and vapors. Halar® ECTFE is resistant to most chemicals (including acids, alkalines, and organic solvents) except hot amines and ketones
TYPICAL PROPERTIES of HALAR® ECTFE
|
| ASTM or UL test |
Property |
Halar® ECTFE |
| PHYSICAL |
| D792 |
Density (lb/in³)
(g/cm³) |
0.061
1.68 |
| D570 |
Water Absorption, 24 hrs (%) |
< 0.1 |
| MECHANICAL |
| D638 |
Tensile Strength (psi) |
7,000 |
| D638 |
Tensile Modulus (psi) |
240,000 |
| D638 |
Tensile Elongation at Break (%) |
200 |
| D790 |
Flexural Strength (psi) |
- |
| D790 |
Flexural Modulus (psi) |
240,000 |
| D695 |
Compressive Strength (psi) |
- |
| D695 |
Compressive Modulus (psi) |
- |
| D2240 |
Hardness, Rockwell |
R93 |
| D256 |
IZOD Notched Impact (ft-lb/in) |
No Break |
| THERMAL |
| D696 |
Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F) |
5.6 |
| D648 |
Heat Deflection Temp (°F / °C)
at 264 psi |
240 / 115 |
| D3418 |
Melting Temp (°F / °C) |
460 / 238 |
| - |
Max Operating Temp (°F / °C) |
300 / 149 |
| C177 |
Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C) |
1.09
3.75 |
| UL94 |
Flammability Rating |
V-O |
| ELECTRICAL |
| D149 |
Dielectric Strength (V/mil) short time, 1/8" thick |
500 |
| D150 |
Dielectric Constant at 1 MHz |
2.5 |
| D150 |
Dissipation Factor at 1 MHz |
- |
| D257 |
Volume Resistivity (ohm-cm)at 50% RH |
1015 |
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.
All values at 73°F (23°C) unless otherwise noted. |
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