ECTFE
ECTFE (ethylene-chlorotrifluoro-ethylene) [Halar®]
Properties
- A partially fluorinated semi-crystalline polymer
- Can be handled by conventional techniques of extrusion as well as by blow, compression, injection, roto and transfer molding
- Smooth surface, excellent corrosion and weather resistance, and outstanding fire-safe properties
- Great impact resistance
- Machinable, weldable and thermoformable
Common uses
- Pipes and piping systems
- Fittings
- Wire and cable insulation
- Semiconductor applications
- Pumps and valves
- Filter housings
- A coating material in protection and anti-corrosion applications, including those in contact with highly corrosive or ultrapure chemicals
ECTFE
Material Specifications
| ASTM or UL test | Property | Value |
Physical |
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| D792 | Density (g/cm3) | 1.56 |
| D570 | Water absorption, 24 hrs (%) | 0.04–0.4 |
Mechanical |
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| D638 | Tensile strength (psi) | 8,200 |
| D638 | Tensile modulus (psi) | 430,000 |
| D638 | Tensile elongation at break (%) | 20–40 |
| D790 | Flexural strength (psi) | 15,000 |
| D790 | Flexural modulus (psi) | 410,000 |
| D785 | Hardness, Rockwell | R121 |
| D256 | Izod notched impact (ft-lb/in) | 1.6 |
Thermal |
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| D696 | Coefficient of linear thermal expansion (x 10–5 in./in./°F) | 3.7 |
| D648 | Heat deflection temp (F°/C°) at 264 psi | 217/103 |
| D3418 | Melting temp (F°) | N/A |
| - | Max operating temp (F°/C°) | 200/93 |
| C177 | Thermal conductivity (BTU-in/ft²-hr-°F) | 0.95 |
| UL94 | Flammability rating | V-0 |
Electrical |
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| D149 | Dielectric strength (V/mil) short time, ⅛” thick |
1,250 |
| D150 | Dielectric constant at 60 Hz | 3.7 |
| D150 | Dissipation factor at 60 Hz | - |
| D257 | Volume resistivity (ohm/cm) at 50% RH | 3.4 x 1015 |
These are typical values for reference and comparison only. They should not be used as a basis for design specifications or quality control. Contact us for the manufacturers’ complete material property datasheets. All values were taken at 73°F (23°C) unless otherwise noted.
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