ECTFE Films
ECTFE film is manufactured from ethylene-chlorotrifluoroethylene resin. This material offers the outstanding performance of fluoropolymer film over a temperature range from cryogenic -200°C (-328°F) to 165°C (330°F).
The low specific gravity of ECTFE provides more square feet than FEP or ETFE with higher mechanical properties making it the ultimate fluoropolymer film for lightweight and high strength composite fabrication. The combination of heat stability, electrical characteristics, and barrier properties provides insulator performance especially suited for use in sensitive electrical applications in caustic, high temperature environments.
ECTFE film offers the highest dielectric strength of all fluoropolymer films. ECTFE film has outstanding resistance to weathering and high energy radiation. This material is suitable for electrical tapes, cable insulation, printed circuits, capacitors, chlorine cells, flat cable constructions, and solar collectors.
CHEMFILM® ECTFE film provides the highest abrasion resistance of any fluoropolymer film available. This film has superior chemical resistance as well as very high tensile strength and flexural modulus. CHEMFILM ETFE film offers a UL V-0 rating for flammability. This provides performance suitable for aircraft cabin interiors and fuel cell membranes.
| Features | Benefits |
|---|---|
| Low Surface Energy | Excellent release and self-cleaning capabilities |
| Functional temperature range from -200°C (-328°F) to 165°C (330°F) | |
| Highest Dielectric Strength | Excellent insulator in many applications |
| Non-Flammable | Meets safety requirements for aviation and military applications |
| Highest mechanical strength in fluoropolymer film | Allows greater design flexibility over other fluoropolymers |
| Lower density than ETFE and FEP | Lighter weight constructions for high performance applications |
| Highest Abrasion resistance | Suitable for tough indoor and outdoor environments |
CHEMFILM® PFA-PG Fluoropolymer Film Typical Properties*
| Typical Properties | Test Method | Value | Units |
|---|---|---|---|
| General | |||
| Specific Gravity | ASTM D-792 | 1.68 | |
| Yield | 22(115) | m2/kg (ft2/lb) | |
| Water Absorption, 24 hr. | <0.01 | % | |
| Mechanical | |||
| Tensile Strength | ASTM D-882 | 55(8000) | MPa (psi) |
| Elongation, Ultimate | ASTM D-882 | 250 | % |
| Tensile Modulus | ASTM D-882 | 1375(200000) | MPa (psi) |
| Initial Tear Strength | ASTM D-1004 | 4.4(450) | N(gm/mil) |
| Propagation Tear Strength, 1 mil | ASTM D-1922 | 11.6(1200) | N(gm/mil) |
| Fold Endurance (M.I.T) | ASTM D-2176 | >250000 | cycles |
| Electrical | |||
| Dielectric Strength, 1 mil | ASTM D-149 | 216(5500) | kV/mm (V/mil) |
| Dielectric Constant, 1 kHz | ASTM D-150 | 2.55-2.63 | |
| Dissipation Factor, 1 kHz | ASTM D-150 | <0.005 | |
| Thermal | |||
| Melt Point | ASTM D-3418 | 240(465) | °C (°F) |
| Continuous Service Temperature | 300-340 | °C (°F) | |
| Flammability | ASTM UL-94 | V-0 | |
| Heat Sealing Temperature | 245-260(475-500) | °C (°F) | |
*Represent typical performance properties and should not be used for specification purposes. Contact your Saint-Gobain Performance Plastics representative for more information.
