Plain PI Kapton Base Film

Plain PI Kapton Base Film is a high-performance polyimide film designed for applications requiring exceptional thermal stability, electrical insulation, and mechanical strength. It offers excellent resistance to high temperatures, chemicals, radiation, and wear while maintaining dimensional stability across a wide operating temperature range. Widely used in flexible electronics, aerospace, automotive, batteries, transformers, and semiconductor industries, our PI base film is available in customized thicknesses, widths, and roll lengths.

Plain PI Kapton Base Film Manufacturer & Supplier

Plain PI Kapton Base Film is manufactured from premium polyimide resin using advanced casting and stretching technology to produce a high-performance insulating film with outstanding thermal and mechanical properties.

Known for its excellent heat resistance, electrical insulation, and dimensional stability, polyimide film performs reliably under continuous exposure to elevated temperatures while maintaining flexibility and strength. Compared with conventional plastic films, PI film offers superior resistance to chemicals, radiation, and aging, making it the preferred material for demanding industrial applications.

As a professional manufacturer, we provide OEM production and customized solutions to meet the requirements of electronics, aerospace, automotive, energy storage, and industrial equipment manufacturers worldwide.

Key Features

• Premium polyimide (PI) material
• Excellent thermal stability
• Continuous operating temperature up to 260°C
• Short-term heat resistance up to 400°C
• Outstanding electrical insulation
• High dielectric strength
• Excellent mechanical strength
• Superior dimensional stability
• Excellent chemical resistance
• Radiation resistant
• Flame resistant
• Low outgassing
• Long service life

Product Benefits

Plain PI Kapton Base Film combines exceptional thermal performance with outstanding electrical insulation, making it suitable for high-reliability applications. It maintains excellent flexibility and tensile strength even under repeated thermal cycling.

Its low thermal expansion coefficient ensures dimensional accuracy during manufacturing processes, while excellent dielectric properties help improve the reliability of electrical and electronic components. In addition, the material resists moisture, solvents, and many industrial chemicals, reducing maintenance costs and extending product life.

Typical Applications

Plain PI Kapton Base Film is widely used in:

• Flexible printed circuits (FPC)
• Flexible printed circuit boards (FPCB)
• Lithium battery insulation
• Electric vehicle battery packs
• Semiconductor manufacturing
• Aerospace insulation
• Satellite components
• Electrical motors
• Transformers
• High-temperature cable insulation
• Electronic labels
• Medical electronics
• Industrial sensors
• 3D printing insulation
• Solar energy equipment

Technical Specifications

Manufacturing Process

Our Plain PI Kapton Base Film is produced using precision casting technology and advanced heat treatment processes. Strict control of resin formulation and production parameters ensures uniform thickness, excellent surface quality, and stable electrical performance.

Each production batch undergoes comprehensive quality inspections, including thickness tolerance measurement, tensile strength testing, dielectric strength verification, and visual inspection to ensure consistent quality.

Custom Manufacturing Services

We offer complete customization services, including:

• Custom film thickness
• Custom roll width
• Roll length
• Slitting service
• Sheet cutting
• Surface treatment
• OEM packaging
• Private labeling

Our engineering team can recommend the most suitable film specifications according to your application requirements.

Why Choose Our Plain PI Kapton Base Film?

• Premium polyimide raw materials
• Stable product quality
• Excellent dimensional accuracy
• Strict quality control
• Competitive factory pricing
• OEM & ODM support
• Fast production lead time
• Global export experience
• Professional technical support

Frequently Asked Questions

What is Plain PI Kapton Base Film?

Plain PI Kapton Base Film is a high-performance polyimide film designed for electrical insulation and high-temperature applications. It provides excellent thermal stability, mechanical strength, and dielectric properties.

What temperature can PI film withstand?

Our polyimide film can operate continuously at temperatures up to 260°C and withstand short-term exposure up to 400°C, depending on the application conditions.

Can you customize the film size?

Yes. We offer customized thicknesses, widths, roll lengths, slitting, and sheet cutting services according to customer specifications.

Is the film suitable for flexible printed circuits?

Yes. Plain PI Kapton Base Film is widely used as a base material for flexible printed circuits (FPC) and flexible printed circuit boards (FPCB) due to its excellent flexibility and insulation performance.

Which industries use PI Kapton Base Film?

The film is commonly used in electronics, aerospace, automotive, lithium batteries, semiconductors, renewable energy, telecommunications, and industrial manufacturing.