| About |
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| For inventory control purposes product name may be followed by an X. Products labeled FEP CJ 95 and FEP CJ 95 X are equivalent and all information in this document is applicable to both. Typical Application Insulation and jacket for Wire and Cable, in applications demanding a high degree of stress crack resistance. Tubes and piping for general and chemical process industry. DuPont Teflon ® FEP CJ 95 is a melt-processible copolymer of tetrafluoroethylene and hexafluoropropylene without additives that meets the requirements of ASTM D 2116 type I. It offers the excellent combination of properties characteristic of Teflon ® fluoropolymer resins: non-ageing characteristics, chemical inertness, exceptional dielectric properties, low flammability, heat resistance, toughness and flexibility, low coefficient of friction, non-stick characteristics, negligible moisture absorption and excellent weather resistance. As an intermediate molecular weight resin Teflon ® FEP CJ 95 offers higher processing speeds than many FEP grades with similar high level of stress crack resistance. Stress crack resistance is an important element in establishing end-use performance. Extensive testing of wire and cable constructions is required for definitive performance evaluation. Experience shows that the MIT folding endurance or flex life test, performed on a thin film of resin, has established a good correlation with extensive cable testing. The higher the MIT flex life, the higher the stress-crack resistance of the resin. MIT test results should be viewed as a guide to comparative performance of the various grades of resin. We recommend that for applications involving repeated thermal and flex cycling, specific tests on the final cable always should be undertaken. See also DuPont’s bulletin “Grade selector for Wire and Cable applications”.&& |
| Product Description | |
|---|---|
| Supplier | Chemours |
| Generic | FEP |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,Good flexibility,Low coefficient of friction,Food contact compliance,High Heat Resistance,Solvent resistance,Low moisture absorption,High ESCR,V-0 |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | |||
| — | 2.13 | g/cm³ | ASTM D792 |
| — | 2.13 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 372℃，5.0kg | 5.0 | g/10min | ISO 12086 |
| 372℃，5.0kg | 5.0 | g/10min | ASTM D2116 |
| Water absorption rate | |||
| 24hr | < 0.010 | % | ASTM D570 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 56 | ISO 868 | |
| Shaw’s D | 56 | ASTM D2240 | |
| tensile strength | |||
| Yield, 23 ℃ | 28.0 | MPa | ASTM D638 |
| Yield, 23 ℃ | 28.0 | MPa | ISO 12086 |
| Tensile strain | |||
| Fracture, 23 ℃ | 330 | % | ISO 12086 |
| Fracture, 23 ℃ | 330 | % | ASTM D638 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃ | No Break | ASTM D256 | |
| 23℃ | No Break | ISO 180 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Continuous use temperature | 205 | ℃ | |
| Melting temperature | 260 | ℃ |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Dielectric strength | |||
| 0.25 mm | > 95 | kV/mm | ASTM D149 |
| 0.25 mm | > 95 | kV/mm | IEC 60243-1 |
| Dielectric constant | ASTM D150 | ||
| 1 kHz | 2.03 | ASTM D150 | |
| 1.00 GHz | 2.03 | ASTM D150 | |
| Relative permittivity | IEC 60250 | ||
| 1 kHz | 2.03 | IEC 60250 | |
| 1.00 GHz | 2.03 | IEC 60250 | |
| Dissipation factor | ASTM D150 | ||
| 1 kHz | 5.0E-5 | ASTM D150 | |
| 1 GHz | 8.0E-4 | ASTM D150 | |
| Dissipation factor | IEC 60250 | ||
| 1 kHz | 5.0E-5 | IEC 60250 | |
| 1 GHz | 8.0E-4 | IEC 60250 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | V-0 | UL 94 | |
| Extreme oxygen index | > 95 | % | ASTM D2863 |
| Extreme oxygen index | > 95 | % | ISO 4589-2 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Critical Shear Rate（372℃） | 20.0 | sec^-1 | Internal Method |
| Guide DDR Range | |||
| for cable extrusion | 20.0 to 120 | ||
| for tubing extrusion | 3.00 to 8.00 | ||
| MIT flexural strength (film, 200.0 µ m) | 4.0E+4 | Cycles | ASTM D2176 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. The continuous service temperature is based on accelerated heat-aging tests, and represents the temperature at which tensile strength and ultimate elongation retains 50% of the original values, after 20 000 h thermal aging When considering the use of Teflon ® FEP at elevated temperatures especially in combination with mechanical, electrical or chemical exposure, preliminary testing should be done to verify suitability. |
| 3. ASTM D4591 / D3418 |
| 4. Method A (Short-Time) |
| 5. – These results are based on laboratory tests, under controlled conditions, and do not reflect performance under actual fire conditions. – Current rating is a typical theoretical value |
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