A Technical Buyer’s Guide to Heavy-Gauge Insulation from a Dedicated PET Motor Insulation Film Factory
Product Overview
As electric motors move toward higher voltages and tighter designs, the insulation film has to step up. The 300μm PET Motor Insulation Film is a heavy-gauge solution engineered for high-voltage motor designs where standard thicknesses are no longer enough. It provides a 30.0 kV breakdown voltage and a massive 197% MD elongation, meaning it can absorb mechanical stress during automated winding without cracking. With a hazy surface for anti-blocking and high stiffness for secure slot insertion, this is the grade that heavy-duty motor manufacturers rely on.
Technical Characteristics
The following values are typical data for the 300μm specification. They are not intended as limiting specifications.
- Material: PET (Polyethylene Terephthalate)
- Thickness: 300 μm
- Tensile Strength: MD 177 MPa / TD 178 MPa
- Elongation at Break: MD 197% / TD 163%
- Thermal Shrinkage at 150°C, 30min: MD 0.9% / TD 0.6%
- Breakdown Voltage: 30.0 kV
- Volume Resistivity at 20°C: 3E+17 Ω·cm
- Dissipation Factor at 20°C, 1kHz: 43
- UL746B: RTI Electrical 105°C, Mechanical 105°C
Key Properties
- 30.0 kV breakdown voltage for high-voltage motor applications
- Massive 197% MD elongation for extreme mechanical toughness
- Hazy surface for excellent handling and anti-blocking
- High stiffness ensures the film stays securely in the motor slot
Applications
300μm PET Motor Insulation Film is used for heavy-duty electrical insulation such as motor slot liners, wedges, and thick die-cut insulation parts. It is ideal for high-voltage motor manufacturing, electric vehicles (EV), and demanding industrial machinery.
Why Choose Jinlu Film as Your Manufacturer
Jinlu Film is a 300μm PET Motor Insulation Film Manufacturer, Factory, and Supplier with factory-direct pricing, stable thickness control, and guaranteed dielectric performance. As a factory, we support custom slitting and sheet cutting, export-grade packing, and global shipping. If you are comparing PET Motor Insulation Film manufacturers, request a sample and check our batch data against the spec sheet.
