Thermal and Chemical Endurance Metrics
| Polymer Type | Polyimide (PI), Polyetherimide (PEI), or high-temp PET |
| Continuous Operating Temp | Ranges from 150°C to 260°C depending on polymer |
| Dielectric Strength | Specific grades reach > 5,000 V/mil (ASTM D149) |
| Chemical Resistance | Resistant to common solvents, acids, and hydraulic fluids |
| Dimensional Stability | Thermal shrinkage kept below 0.1% at maximum operating temperature |
| Flame Retardancy | Achieves UL-94 V-0 rating (Self-extinguishing) |
These specialized films maintain their mechanical, electrical, and chemical properties when subjected to continuous high thermal loads. Their structure prevents thermal deformation and degradation, making them suitable for insulating and protective functions in high-heat processes.
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