Our Ultra Thin Kapton Insulation Film is a high-performance polyimide film designed for electrical insulation, heat resistance, and dimensional stability under extreme environments.
With a thickness starting from 12.5μm, this film provides exceptional mechanical strength and dielectric performance while maintaining a lightweight and compact structure.
It is widely used in electronics, batteries, aerospace, and flexible circuit industries, where reliability and temperature endurance are critical.
Key Features
Excellent thermal stability from -269°C to +260°C, and short-term tolerance up to 400°C
Superior electrical insulation with dielectric strength above 6.5 kV
Outstanding mechanical strength and tensile properties
Excellent resistance to chemicals, radiation, and moisture
Low shrinkage and high dimensional stability during thermal processing
Uniform thickness and smooth surface suitable for precision applications
Halogen-free, RoHS and REACH compliant
Technical Specifications
| Model items Technical Specifications | KA6801A | KA6802A | KA6802AH |
| Color | brown | brown | brown |
| Material | PI/Kapton | PI/Kapton | PI/Kapton |
| Total thickness [ μm ] | 1 | 2 | 2 |
| Tensile strength [ MPA ] | MD 301 TD 239 | MD 333 TD 283 | MD 339 TD 272 |
| Elongation at break [ % ] | MD 16.6 TD 14.9 | MD 25 TD 24.6 | MD 32.5 TD 21.3 |
| Elastic Modulus [ GPa ] | MD 9 TD 7.7 | MD 8.9 TD 8.5 | MD 8 TD 8.4 |
| CTE [ ppm/℃ ] | MD 5.5 TD 5.6 | MD 0.71 TD 6.33 | MD 3.74 TD 8.16 |
| Voltage [ KV ] | 0.24 | 0.28 | 0.52 |
| Breakdown strength [ KV/mm ] | 240 | 140 | 260 |
Applications
Lithium-ion battery insulation – cell wrapping and inner layer protection
Flexible printed circuits (FPC) – base film for copper-clad laminates
Electric motors and transformers – slot liners and layer insulation
Aerospace and automotive industries – lightweight and heat-resistant insulation layers
Semiconductors and electronics – dielectric insulation and thermal barriers
Advantages of Our Kapton Film
Professional Manufacturer: Over 28 years of experience in polyimide film and adhesive material production
High Consistency: Stable film thickness, excellent mechanical and electrical properties
Customizable Specifications: Available in various thicknesses, widths, and roll lengths
Certified Quality: Compliant with ISO9001, UL, RoHS, and REACH standards
Global Supply Capability: Fast lead times and worldwide logistics support
Technical Support: Complete material data sheets and engineering consultation available
Available Grades
| Grade | Description | Typical Application |
|---|---|---|
| PI-12.5 | 12.5μm ultra thin film | FPC, battery insulation |
| PI-25 | 25μm standard film | General electrical insulation |
| PI-50 | 50μm high strength film | Aerospace and automotive insulation |
Packaging and Storage
Standard export carton or customized packaging upon request
Store in a clean, dry, and dark environment at 15–25°C, humidity below 65%
Recommended shelf life: 12 months from the production date
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