FEP heat-shrinkable tube (polyfluoroethylene propylene copolymer,) has excellent high and low temperature resistance, oil resistance and chemical resistance performance, especially suitable for places that require heat resistance (such as aircraft or automobile engines or electrical appliances near the fuel tank) And hydraulic system> and the environment that needs chemical solvent resistance, it is suitable for insulation protection and stress decoating of cable harness in these environments, and protects electronic and electrical equipment from damage.
Features/ Advantanges
The various properties of the polyperfluoroethylene propylene copolymer-EE copolymer are similar to those of PTFE, but the heat resistance is slightly lower. It can work at -5 degrees *205 degrees for a long time, and at -200 degrees to +300 degrees for a short time; High strength, creep resistance, low temperature flexibility is better than PTEE; crystallinity varies with heat treatment temperature, good molding processability; non-toxic, non-sticky, electrical insulation, wear resistance, chemical stability are comparable to PTEE
Temperature Range Continuous
Working Temperature: -85~℃~200~℃·Minimum shrinkage temperature: 150
Minimum complete shrinkage temperature: 200℃ characteristics/standard
| Characteristics | Item | Index Requirements | Testing Result | |
|
Physical characteristics: |
Tensile Strength | 8.2mpa min | ASTM D 638 | ≥10.3Mpa |
| tensile strength | 250% min | ASTM D 638 | ≥300% | |
| Thermal shock（300 C 4 Hours ） | No cracks | ASTM D2671 | PASS | |
| Low temperature flexibility(-65C 4hours ） | No cracks | ASTM D2671 | PASS | |
| Heat aging 250C 168 hours | ||||
| Tensile strength after aging | 8.2mpa min | ASTM D638 | ≥8.2MPA | |
| Elongation at break after aging | 200% min | ASTM D638 | ≥ 200% | |
| Electrical characteristics | Insulation withstand voltage and breakdown | 2500v, 60s, No breakdown | ASTM D2671 | PASS |
| Dielectric strength | 7.9kv/mm min | ASTM D2671 | ≥7.9kv/mm | |
| Volume resistivity | 109 Ω.cm.min | ASTMD876 | 109 Ω.cm | |
| Chemical characteristics: | Corrosive（175C ,16 hours ） | No corrosion | ASTMD2671 | PASS |
| Flame retardant | 15S self-extinguishing | ASTM D2671 | PASS | |
| Oilresistance characteristics:： |
25℃，24 hours (Gasoline, fuel oil, hydraulic oil, lubricating oil) |
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| Tensile Strength | 8.2mpa min | ASTM D2671 | ≥8.2mpa | |
| Elongation at break | 200% min | ASTM D2671 | ≥200% | |
