CITCABLE provides professional Kapton (Polyimide) wire cables. This series of high-performance wires primarily utilizes bare, tinned, silver-plated, or nickel-plated copper, pure silver, and specialized alloys as core conductors, which are then insulated with high-performance coatings such as specialized Polyimide (Kapton/PI).
These Kapton (Polyimide) Wire Cables are designed and manufactured by CITCABLE as a range of high-quality PI insulated wires, ideal for use in UHV (Ultra High Vacuum), aerospace, medical, and nuclear applications. The Kapton insulation not only provides outstanding electrical performance but also ensures exceptional thermal stability (-100 °C to +300 °C) and superior radiation resistance, making the cable highly reliable for the most demanding environments. Furthermore, these cables exhibit low outgassing, high mechanical strength, and excellent chemical resistance, ensuring consistent safety and operational excellence in harsh conditions.
The Kapton Wire Cable is designed with high-quality conductive cores and a specialized high-performance Polyimide (Kapton/PI) insulation. This construction helps maintain reliable electrical performance, ensures exceptional thermal and radiation resistance, and provides rugged durability to meet rigorous aerospace, medical, and UHV specifications.

| Layer | Material | Function |
|---|---|---|
| Conductor | Bare, Tinned, Silver-plated, or Nickel-plated Copper / Pure Silver / Alloy | Maintains highly reliable electrical performance and delicate signal transmission |
| Insulation Layer | Specialized high-performance Polyimide (Kapton/PI) | Provides extreme temperature resistance (-100°C to +300°C), high breakdown voltage, and very low outgassing for UHV |
| Surface / Outer Layer | Polyimide (PI) / TPI composite materials | Offers superior radiation resistance, excellent wear performance, and protection against harsh chemicals and engine fluids |
Without Kapton Insulation (Standard Cable)Standard materials → lower thermal/radiation resistance → potential failure in demanding environments Common Limitations:
|
With Kapton (Polyimide) InsulationExceptional thermal stability and radiation resistance Engineering Advantages:
|
| Operating temperature: | -100°C to +300°C |
| Voltage Rating: | 250V to 10000V (Depending on insulation thickness) |
| Temperature Rating: | Up to +300°C for Nickel-Plated Copper or Silver Conductors |
We provide customized anti-capillary wire cable solutions tailored to your specific application requirements, ensuring optimal performance for your machinery.
| Customization Item | Options |
|---|---|
| Conductor Size | 0.35mm² - 6.0mm² |
| Insulation Material | FKM / FEP / ETFE / XLPE / PVDF |
| Voltage Rating | Customized according to requirement |
| Color | Black, Red, Blue, or Custom colors |
| Cable Length | Customized packaging / cut to length |
With advanced cable extrusion equipment and strict quality control processes, we provide customized anti-capillary wire cable solutions for industrial OEM customers. Our capabilities include:
| Test Item | Purpose |
|---|---|
| Oil Resistance Test | Verify insulation durability under continuous fluid exposure |
| High Temperature Test | Check thermal stability and prevent melting/degradation |
| Voltage Withstand Test | Ensure electrical safety and prevent breakdown |
| Flexibility Test | Evaluate mechanical performance in dynamic applications |
| Fluid Migration Test | Verify the effectiveness of the anti-capillary structure |
A: These cables are highly specialized for demanding environments such as UHV (Ultra High Vacuum) systems, aerospace components, medical devices, and nuclear applications due to their exceptional thermal stability and superior radiation resistance.
A: The specialized Kapton insulation provides extreme temperature resistance (spanning from -100°C up to +300°C), excellent dielectric strength, and rugged durability against chemicals and radiation. This ensures the cable remains highly reliable even in the harshest industrial conditions.
A: Kapton (Polyimide) exhibits extremely low outgassing properties. This means it will not release volatile materials or gasses that could compromise the vacuum chamber's integrity, making it the preferred choice for delicate UHV scientific and aerospace applications.