PET film for electrical insulation and technical applications

PET (Polyethylene Terephthalate) film, also known as industrial polyester film, is one of the most widely used materials for electrical insulation and mechanical protection in demanding industrial environments. 

Thanks to its dimensional stability, dielectric properties and mechanical strength, industrial PET film is a reliable solution for applications in electronics, automotive, energy and energy storage. 

ADDEV Materials supports manufacturers in the selection, supply and custom processing of PET films adapted to their technical constraints. 

Request a technical study for your application 

PET film

PET film for electrical insulation

Electrically insulating PET film is widely used for :

  • Insulation of electric motors
  • Inserts in transformers
  • Winding protection
  • Electronic modules
  • Battery management systems

Its dielectric strength and thermal stability mean it can be used in controlled industrial environments.

Although PET film is not designed for extreme environments like polyimide, it offers excellent thermal resistance for many standard industrial applications.

It is an effective solution when :

  • Temperatures remain moderate
  • Reliable insulation is required
  • The budget must be optimised

For stresses > 250°C, polyimide film solutions are recommended.

Why choose industrial PET film?

PET film is renowned for its excellent compromise between technical performance and cost optimisation. 

Key properties : 

  • Good resistance to high temperatures
  • Excellent dielectric properties 
  • Dimensional stability 
  • High mechanical resistance 
  • Resistance to humidity 
  • Good printability 
  • Transparency possible depending on grade 

These characteristics make insulating polyester film an ideal solution for applications requiring electrical insulation and durable protection. 

Brands and references available

We offer several references for industrial PET film: 

Other technical grades subject to availability

Custom processing of PET film

ADDEV Materials does more than just supply materials. 

We offer tailor-made PET film solutions adapted to your industrial process: 

Industrial applications of PET film

Industrial PET film is used in : 

How do you choose the right PET film?

The choice depends on : 

1. Required thickness

Depending on the level of insulation and rigidity.

2. Thermal class

Depending on environment of use.

3. Mechanical stress

Cutting, folding, assembly...

4. Need for transformation

Laminating, bonding, specific cutting...

Our technical teams will work with you to precisely size the industrial PET film best suited to your project.

Why choose ADDEV as your film supplier?

Broad international supplier portfolio

Multi-market materials expertise

Integrated industrial transformation

Support from the R&D phase

International presence

We act as a technical partner, not just a distributor.

FAQ - Industrial PET film

PET film is a high-performance polyester film used for electrical insulation, mechanical protection and technical industrial applications.

PET film is suitable for moderate temperatures and offers excellent value for money.

Polyimide is designed for very high temperature environments.

Yes, it is used for insulation and protection in certain battery architectures, depending on thermal constraints.

Yes. Cutting, laminating, slitting and solutions tailored to your specifications.