Specs, Insulation Performance, and Application Guide for 188μm Polyester Film
Product Overview
0.188mm PET Film is a thick-gauge polyester film built for applications where higher dielectric strength and mechanical durability matter more than ultra-thin flexibility. At 188μm, this film delivers strong insulation performance and stable dimensional behavior, making it a practical option for heavy-duty electrical and industrial converting processes.
Technical Characteristics
The following values are typical data measured under specified test conditions.
- Thickness: 188 μm
- Tensile Strength: MD 183 MPa / TD 177 MPa
- Elongation at Break: MD 188% / TD 127%
- Thermal Shrinkage at 150°C, 30min: MD 1.0% / TD 0.1%
- Breakdown Voltage: 24.6 kV
- Volume Resistivity at 20°C: 5E+17 Ω·cm
- Dissipation Factor at 20°C, 1kHz: 43
- Coefficient of Friction: Not specified for this thickness
- UL746B: RTI Electrical 105°C, Mechanical 105°C
Key Properties
- High breakdown voltage for demanding insulation tasks
- Strong tensile strength with balanced MD and TD performance
- Low thermal shrinkage for stable dimensions during processing
- Suitable for thick-film die-cutting and converting
Applications
0.188mm PET Film is widely used in electrical insulation such as flyback transformers (FBT), choke coils, wire insulation, and cable tape. It also works well in flexible printed circuits (FPC), membrane switches, die cut insulation parts, mold release, adhesive tape, and spiral tubes.
Why Choose Us
We supply 0.188mm PET Film with consistent thickness, reliable electrical properties, and flexible order support. Custom slitting is available to match your production needs.
Contact us today for a quotation or sample of 0.188mm PET Film.
