High-performance Kaladex PEN film for industrial applications

The Kaladex film is a PEN (polyethylene naphthalate) solution designed to meet the most demanding industrial environments, particularly in the energy, mobility, and power electronics sectors.

In these applications, manufacturers must contend with critical constraints: rising temperatures, high electrical stresses, component miniaturisation, and increased reliability requirements. In this context, the choice of insulating materials becomes a key lever for performance and durability.

The Kaladex film presents itself as a strategic alternative between standard PET films and high-performance materials like polyimides, offering an excellent balance between cost, thermal performance, and dimensional stability.

ADDEV Materials supports manufacturers at every stage of the project: from selecting the right Kaladex grade to tailor-made processing (cutting, laminating, combining) in order to deliver components that can be directly integrated into your systems.

Request a quote for Kaladex film

Kaladex

Kaladex film for electrical insulation and high-temperature applications

The Kaladex film is widely used in systems requiring reliable and durable electrical insulation:

  • electric motors
  • transformers
  • power systems
  • batteries and BESS
  • Industrial electronics

Thanks to its continuous operating temperature of up to 180°C and its superior rigidity, it guarantees stable performance in critical environments.

Kaladex and Teonex films both belong to the PEN film family, but have different positioning depending on the applications.

  • Caladex: optimised for electrical insulation, FPCs, capacitors
  • Teonex: geared more towards advanced technical film applications

The film Kaladex particularly stands out for:

  • better stiffness (+25% vs PET)
  • an excellent thermal outfit
  • a better cost/performance trade-off

What is the film Kaladex?

The Kaladex film is a biaxially oriented PEN (polyethylene naphthalate) polyester film, developed to offer superior performance to standard PET films while remaining more accessible than polyimide films.

Its specific molecular structure gives it a unique combination of mechanical, thermal, and electrical properties, particularly suited to demanding industrial environments. Notably, it exhibits a higher glass transition temperature (121°C compared to 78°C for PET), as well as excellent dimensional stability at high temperatures.

Thanks to these characteristics, the film Kaladex allows:

  • Better long-term temperature stability
  • a reduction in deformation and shrinkage phenomena
  • an improvement in electrical insulation performance
  • increased resistance to moisture and hydrolysis

It is thus used in critical applications such as electric motor insulation, flexible printed circuits (FPC), high-performance capacitors, and energy storage systems.

Kaladex film supplier and custom transformation

ADDEV Materials supports industrial manufacturers in selecting and transforming Kaladex films for direct integration into their systems.

Our capabilities include:

Industrial applications of Kaladex film

The Kaladex film is used in many demanding industrial sectors:

Its unique combination of properties allows it to replace PET in critical applications and avoid the cost of polyimide.

How to choose the right Kaladex film

Choosing a film Kaladex Pen depends on several technical parameters.

Operating temperature

The choice of film depends directly on the thermal constraints.
Kaladex allows for use up to 180°C, ideal for harsh environments.

Electrical stress

For high-voltage applications, favour grades offering high dielectric strength and excellent electrical stability.

Mechanical constraints

Its high rigidity and low deformation ensure excellent performance in stressed systems.

Industrial process

Kaladex is easily transformed like a PET film, which simplifies its integration without altering existing processes.

Our technical teams are analysing your specifications to recommend the Film Kaladex adapted to your application.

Why choose ADDEV as your Kaladex film supplier?

ADDEV Materials supports manufacturers in their critical projects by combining materials expertise and processing capabilities.

Our advantages:

Access to Kaladex references

Multi-market materials expertise

Integrated industrial transformation

Technical support engineer

International presence

We get involved from the design phase to secure your material choices and optimise your performance.

Need Teonex film for your application?

Each industrial application requires a tailored solution.

ADDEV supports you in:

  • Choosing the right Kaladex grade
  • technical optimisation
  • customisation
  • Industrialisation

Request a quote or a sample

FAQ – Kaladex Film

This is a high-performance PEN film offering better thermal and mechanical resistance than PET.

What is the difference between Kaladex and PET?

 

Yes, in certain applications, it allows for similar performance to be achieved at a lower cost.

Electrical isolation, FPC, capacitors, batteries, power electronics.