Exploring 342μm Polyester Film for High-Voltage Insulation and Heavy-Duty Industrial Use
Product Overview
Not every application can compromise on thickness. 0.35mm PET Film is a heavy-gauge polyester film engineered for situations where maximum dielectric strength and mechanical robustness are the top priorities. With a nominal thickness of 342μm, this film delivers one of the highest breakdown voltages in the standard PET film range, making it a reliable choice for high-voltage insulation and demanding industrial processes.
Technical Characteristics
The following values are typical data measured under specified test conditions.
- Thickness: 342 μm
- Tensile Strength: MD 164 MPa / TD 164 MPa
- Elongation at Break: MD 195% / TD 167%
- Thermal Shrinkage at 150°C, 30min: MD 0.9% / TD 0.7%
- Breakdown Voltage: 31.2 kV
- Volume Resistivity at 20°C: 3E+17 Ω·cm
- Dissipation Factor at 20°C, 1kHz: 40
- Coefficient of Friction: Not specified for this thickness
- UL746B: RTI Electrical 105°C, Mechanical 105°C
Key Properties
- Highest breakdown voltage in the standard thickness range
- Uniform tensile strength in both MD and TD directions
- Low thermal shrinkage for stable performance during processing
- Excellent dimensional stability for heavy-gauge converting
Applications
0.35mm PET Film is designed for electrical insulation such as flyback transformers (FBT), choke coils, wire insulation, and cable tape. It also performs well in flexible printed circuits (FPC), membrane switches, die cut insulation parts, mold release, adhesive tape, and spiral tubes.
Why Choose Us
We supply 0.35mm PET Film with consistent thickness, reliable high-voltage performance, and flexible order support. Custom slitting is available for different widths and production needs.
Contact us today to request a quotation or sample of 0.35mm PET Film.
