PET polyester film is one of the most commonly used electrical insulation materials in the electrotechnical industry. Due to its very good mechanical properties, high dielectric strength, and temperature resistance, this material finds wide application in the production and repair of electric motors, transformers, and electrical devices.

Polyester films are used as insulation elements for windings, insulating spacers, and separating layers between conductive elements. The material is characterized by good resistance to temperature, moisture, and many chemical substances.

Thanks to its structure, PET film provides high dimensional stability and mechanical resistance, making it frequently used in electric motor insulation systems. The material can also be used as a structural layer in electrical insulation laminates.

PET polyester film is available in various thicknesses and widths, most often in the form of rolls, allowing the material to be tailored to specific technological applications.

Applications of Polyester Film

PET film is primarily used in:

• insulation of electric motor windings

• insulation of transformers

• production of electrical insulation laminates

• insulating spacers

• insulating elements in electrical equipment

Key Properties

• very good electrical insulation properties

• high mechanical strength

• temperature resistance

• resistance to moisture and chemicals

• dimensional stability

FAQ 

What is PET polyester film?

PET polyester film is a thin electrical insulation material made from polyester. It is characterized by high mechanical strength and very good insulation properties.

What is polyester film used for?

Polyester film is mainly used in the insulation of electric motor windings, transformers, and in the production of electrical insulation laminates.

What temperature can PET film withstand?

Polyester films used in electrotechnics can operate at temperatures up to about 150°C, depending on the insulation system.

Is polyester film flexible?

Yes. PET film is a flexible material that can be easily shaped and cut to the required dimensions.