Colorless transparent polyimide film for electronic components is optimized electronic-grade colorless PI for precision electronic parts. Beyond basic transparency and high heat resistance, it upgrades surface flatness, cleanliness and defect control. Ordinary industrial colorless PI may contain crystal points, dust and streaks that cause short circuits and uneven display when used in precision electronics. Our electronic-grade variant is slitted and packed in thousand-class clean rooms with strict particle and crystal point limits.
A flexible circuit manufacturer needed transparent PI cover film resistant to 260℃ reflow soldering. Regular PET lacks heat resistance, standard PI is amber, and imported electronic-grade PI carried high costs. Our electronic colorless PI samples passed all transmittance, heat resistance and cleanliness tests at a lower import price, leading to stable mass orders. Performance indicators: light transmittance ≥92%, haze ≤0.8%, thermal decomposition >500℃, long-term 220℃ service, short 260℃ reflow tolerance, breakdown voltage ≥150kV/mm even for ultra-thin gauges. For distributors, this high-end electronic target client product has low price sensitivity and stable supply chain entry, with cross-selling opportunities for other electronic insulation materials.
Specification Parameters
|
Parameter Item |
Technical Index |
|
Thickness Range |
0.0125～0.125mm |
|
Maximum Width |
1000mm |
|
Light Transmittance |
≥92% |
|
Haze |
≤0.8% |
|
Temperature Resistance Class |
Class C and above (220℃) |
|
Breakdown Voltage |
≥150kV |
Application Fields
- Cover films and insulation layers for flexible circuit boards
- Protective insulation for electronic components
- Interlayer insulation for touch panels
- Encapsulation of optoelectronic components
- Insulation substrates for micro sensors
Qualification Certifications
Our electronic-grade colorless PI passes authoritative lab testing for transmittance, heat resistance, breakdown and cleanliness, meeting electronic material standards. ISO9001 certification with regularly inspected clean workshops. RoHS and REACH compliant, halogen and phthalate-free for exports to Europe, US, Japan and South Korea. Full test reports and certificates are provided for client certification; third-party inspection and custom UL testing are supported.
After-sales Service
Stringent service system for electronic-grade products with strict cleanliness demands. Pre-sales confirmation of thickness, transmittance, cleanliness and dimensional requirements with A-grade sample kits for full testing. All batches retained during mass production. We respond within 8 hours and issue replacement or refund solutions within 24 hours for quality defects after delivery. Dedicated electronic material specialists with industry process expertise streamline communication and technical support.
Factory Strength
We are one of few domestic manufacturers with mass production capability for electronic-grade colorless PI film, equipped with thousand-class production clean rooms and hundred-class slitting & packaging workshops. Our senior R&D team with over 20 years of experience maintains long university industry partnerships with fully independent formulas and processes. Full in-house control of casting, stretching, surface treatment and precision slitting, delivering consistent batch quality. Standard and custom specifications are available for new product joint development with clients.
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