100μm PET Polyester Film
As a PET Polyester Film Factory, Jinlu Film produces this 100μm grade for buyers who need a higher voltage ceiling without jumping to the heaviest gauges. The 17.4 kV breakdown voltage is a significant step up from 75μm, which lets engineers reduce the number of insulation layers in transformer and coil designs. Tensile strength holds at 221/223 MPa, and thermal shrinkage stays at 1.0% MD, so the film stays flat and dimensionally stable through high-speed winding.
Key Specifications
| Thickness | 100μm |
| Material | PET (polyethylene terephthalate) |
| Tensile strength | MD 221 MPa / TD 223 MPa |
| Elongation at break | MD 163% / TD 150% |
| Thermal shrinkage at 150°C, 30 min | MD 1.0% / TD 0.1% |
| Breakdown voltage | 17.4 kV |
| Volume resistivity at 20°C | 2E+17 Ω·cm |
| Dissipation factor at 20°C, 1 kHz | 42 |
| Coefficient of friction | μs 0.6 / μd 0.4 |
Applications
Interlayer insulation for transformers, chokes and coils, wire and cable wrapping, flexible printed circuits (FPC), membrane switches, die-cut insulation parts, adhesive tape backing, and spiral tube winding.
Target industries: electrical and electronic manufacturing, coil and transformer winding, flexible circuitry, and industrial insulation.
Why Choose Jinlu Film as Your PET Polyester Film Factory
- 17.4 kV breakdown voltage reduces layer count
- Stable MD shrinkage for winding accuracy
- Custom width and roll length
- Fast sampling and dependable lead times
- Export-grade packing and global shipping support
- Factory-direct pricing
Compare With Other Thicknesses
For a thinner film, see 75 μm. For a higher voltage ceiling, see 125 μm or 188 μm. We also list a 0.1 mm PET film, a 100μm BOPET film, a 100μm PET film for motor insulation and our PET polyester film overview. Everything is in the PET film category. To learn more, read 100μm PET polyester film manufacturer: choosing the right factory for heavy insulation and the PET insulation film guide.
FAQ
What is the breakdown voltage of 100μm PET polyester film?
17.4 kV, as listed in the specifications above.
When should I choose 100μm?
When you need a higher voltage ceiling than 75μm without jumping to the heaviest gauges, so fewer insulation layers are needed in transformer and coil designs.
Does it stay flat in high-speed winding?
Yes. Thermal shrinkage stays at 1.0% MD, so the film stays flat and dimensionally stable.
Can I get samples?
Contact us with your width and application, and we will send a quote and samples.
