75μm PET Film for Motor Insulation
75μm PET Film for Motor Insulation from Jinlu Film is a hazy polyester film developed for larger motor slots and heavier insulation builds. The surface is kept matte rather than glossy, so the film grips the slot wall during insertion instead of sliding out of place. Breakdown voltage rises to 14.3 kV, a clear step up from thinner grades, and the 244/249 MPa tensile strength gives the film enough stiffness to push into position without folding.
Key Specifications: Thickness 75μm; Surface hazy / matte; Tensile Strength MD 244 MPa / TD 249 MPa; Elongation at Break MD 158% / TD 155%; Thermal Shrinkage at 150°C, 30min MD 1.3% / TD 0.6%; Breakdown Voltage 14.3 kV; Volume Resistivity at 20°C 5E+17 Ω·cm; Dissipation Factor at 20°C, 1kHz 43; UL746B RTI Electrical 105°C / Mechanical 105°C.
Applications: motor slot liner, motor wedge, die-cut insulation, interlayer insulation in motors and generators, and general electrical insulation. Target Industries: electric motor manufacturing, generator assembly, electrical and electronic manufacturing, and industrial insulation.
Why Choose Jinlu Film for PET Film for Motor Insulation: 14.3 kV breakdown voltage for larger motor builds; hazy surface for better grip during insertion; good stiffness to push into motor slots; UL746B RTI 105°C electrical / mechanical; custom width and roll length; export-grade packing and global shipping support.




