Sanfeng Win New Material(Jiangsu)Co.,Ltd.
| Payment Terms | T/T,L/C,D/P |
| Supply Ability | 100,000 Roll per Week |
| Delivery Time | 7-10 days |
| Packaging Details | Heat-seal first, then put them into the carton |
| Name | 25μm PI Film High-Temperature Polyimide Film for Electronics |
| Use | Masking,Protection |
| Feature | Heat-resistant |
| Color | Amber |
| Thickness | 25μm |
| Size | 60mm*200m (Customizable) |
| Brand Name | Sanfeng Win |
| Model Number | PI25 |
| Certification | ISO 14001:2015 |
| Place of Origin | Jiangsu,China |
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Product Specification
| Payment Terms | T/T,L/C,D/P | Supply Ability | 100,000 Roll per Week |
| Delivery Time | 7-10 days | Packaging Details | Heat-seal first, then put them into the carton |
| Name | 25μm PI Film High-Temperature Polyimide Film for Electronics | Use | Masking,Protection |
| Feature | Heat-resistant | Color | Amber |
| Thickness | 25μm | Size | 60mm*200m (Customizable) |
| Brand Name | Sanfeng Win | Model Number | PI25 |
| Certification | ISO 14001:2015 | Place of Origin | Jiangsu,China |
| High Light | 25μm polyimide film electronics ，high-temperature PI film ，polyimide film PET tape | ||
The PI25 Series is a 25μm polyimide (PI) film manufactured via polycondensation of pyromellitic dianhydride (PMDA) and 4,4'-oxydianiline (ODA), followed by casting, imidization, and stretching. This amber-colored film offers exceptional thermal stability, electrical insulation, and mechanical strength. With a thickness of 25±3μm, PI25 withstands 288°C±5°C for 10 seconds, exhibits low water absorption (<4.0%), and provides excellent dielectric properties. It is supplied in rolls on a 76mm rigid paper core, ideal for demanding electronic, and industrial applications.
| Parameter | Specification | Test Standard |
|---|---|---|
| Thickness | 25±3μm | GB/T7125-2014 |
| Water Absorption Rate | <4.0% | – |
| Relative Permittivity (50Hz) | ≤3.9 | Voltage varies with thickness |
| Dielectric Dissipation Factor (50Hz) | ≤4.0×10⁻³ | – |
| Electrical Strength (Average) | ≥50 MV/m | – |
| Electrical Strength (Individual) | ≥40 MV/m | – |
| Density | 1420±20 kg/m³ | – |
| Shrinkage Rate 200°C | ≤0.3% | Oven Test |
| Temperature Resistance | 288°C±5°C / 10 sec | Oven Test |
| Core Inner Diameter | 76mm (rigid paper core) | – |
| Test Conditions | 23±1°C, 50±5% RH | – |
PI25 polyimide film is trusted across multiple high-reliability industries:
Sanfeng Win New Materials (Jiangsu) Co., Ltd. (hereinafter referred to as Sanfeng Win) was established in 2010. It is a private enterprise integrating R&D, production and sales of adhesive products, with industry-leading coating technology and a professional R&D team. The company specializes in the production of high-temperature resistant tapes, optical protective films, new energy battery blue films, aerogel packaging hot-pressing films, photovoltaic perforated tapes, photovoltaic backsheets and other products, which are widely used in electronics, mobile phone screens, PCB, powder spraying, insulation, die-cutting, printing plastics, battery cell aluminum case wrapping, FPC, new energy, photovoltaic and other industries.
To ensure product quality requirements, the company is equipped with precision coating equipment and professional R&D and technical talents.
The company has a high-purification clean workshop and a multi-functional composite precision coating production line, providing customers with R&D, design schemes and market application feedback, and can put into independent mass production services.
Q1: Can PI25 be used continuously at 260°C?
A: PI25 is rated for 288°C±5°C for 10 seconds (peak). For continuous operation at 260°C, the film will perform well but may exhibit slight discoloration. Long-term exposure (>1000 hours) above 240°C should be validated with your specific process.
Q2: Is PI25 the same as Kapton?
A: PI25 is a general-purpose polyimide film chemically similar to Kapton (DuPont trademark). It meets equivalent thermal, electrical, and mechanical specifications but is offered at a competitive price point. Always test for your specific application.
Q3: How should I store PI25 polyimide film?
A: Store in original packaging at 18–25°C and 40–70% RH, away from direct sunlight. Maximum shelf life is 6 months. Keep the roll wrapped to prevent dust and moisture absorption.
Company Details
Business Type:
Manufacturer
Year Established:
2010
Total Annual:
$17,000,000-9500000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
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