Polyester Film
Polyester film features excellent insulation properties, heat resistance, and mechanical strength, while also being relatively inexpensive. It is suitable for insulating general electrical equipment and electronic components-such as transformer windings, low-voltage motors, and protective coverings for electronic parts. Easy to process and possessing excellent winding characteristics, PET film is one of the most widely used insulating films in the industrial sector.
Polyimide Film
Polyimide film boasts outstanding high-temperature resistance, capable of sustained operation at temperatures exceeding 200°C. Furthermore, it exhibits high dielectric strength and excellent chemical stability. It is frequently utilized in high-temperature motors, transformer windings, as well as in aerospace applications and high-end electronic devices, standing as a prime example of a high-performance insulating film.
Polytetrafluoroethylene (PTFE) Film
PTFE film is characterized by exceptionally high heat resistance, corrosion resistance, and self-lubricating properties, alongside superior electrical insulation performance. It is well-suited for electrical equipment operating in high-frequency, high-temperature, or corrosive environments-such as specialized electronic components, cable sheathing, and chemical-resistant electrical devices.
Polyethylene Film
Polyethylene film offers excellent moisture resistance and high flexibility; it is commonly employed in the insulation of low-voltage cables and in flexible electronic products. In addition to these materials, there exists a variety of composite films-such as PET/PI laminates and PI-coated films-designed to simultaneously meet specific requirements regarding heat resistance, chemical resistance, and mechanical strength.
