Folex® films - biaxially oriented polyester films

for high quality input systems

The Folex Group specialises in the finishing and coating of films made of polyester (PET) and has production companies based in Switzerland and Germany that offer high quality products and tailor made services for a wide variety of markets.

Folex dynamically adapts its portfolio to changing customer needs and technical developments. Based on its core competence, coating, Folex constantly works on optimising existing film products to develop new potential applications for different printing technologies (mainly screen printing and digital printing). Today Folex offers films made of polyester (PET) for many sectors, from the printing industry or digital and large-format printing, the office and home sector, all the way to primary products for the electronics industry and many other uses. In addition to which, Folex has also developed extensive skills in membrane separation technology.

As a specialist in films, we offer high quality Folex® films in various film thicknesses and surfaces at a competitive price. We supply both rolls and sheets in the size you need. All we need is the format you require. We are happy to support you with technical data sheets or samples for the construction of prototypes or initial tests. We are happy to consult you regarding specific projects or send you a tailor made quotation for any technical film. Contact us, the König Film Centre team is looking forward to hearing from you!


Properties of Folex Polyester Films

For the production of membrane keyboards, signs and labels, the manufacturer Folex offers coated polyester films that can be screen-printed or digitally printed. The portfolio includes both decorative films with special surfaces and electrically conductive films. The special films are, among other things, enormously tear-resistant and chemical resistant. Therefore, these films are used for surface protection applications, but also for the production of industrial signs and labels. As a specialist for technical films, we offer you our transparently or matt PET products cut to size into sheets or in rolls.

Are Folex films printable?

A polyester film (material polyethylene terephthalate) normally is not printable. However, Folex quality products have a special surface coating that ensures excellent and consistent printing results. Folex produces films with different printing pre-treatments. These include the conventional items for use in screen printing, but also a range of products specifically for digital printing. The coating makes, the Folex polyester film ideally suitable for digital printing, screen printing and similar uses.

For more information on the suitable printability of the polyester films and specific printing systems (digital printing and screen printing), please contact us!

Is Folex film heat stable?

Polyester (PET) products have a high temperature / heat stability and can be used permanently at temperatures from - 70 °C up to 150 °C. The melting point of the heat resistant films is over 200 °C.

Product properties of Folex films at a glance

The clear polyester film with excellent transparency has the following properties:

  • High temperature / heat resistance
  • High UV stability for many Folex products
  • Good dielectric properties
  • Excellent transparency
  • Printable (screen printing, UV curing varnishes, dielectric inks)
  • Good ageing behaviour, no embrittlement (no plasticisers)
  • Tear resistance
  • Excellent transparency
  • Scratch consistent
  • Chemical resistance
  • Ideal insulating properties
  • Can be cut with laser cutters / laser machinery


Assortment of Folex films

The range of Folex quality polyester films for input systems is extensive and includes the following categories for a wide variety of functions:

  • Clear films with great transparency
  • Films with scratch resistance
  • Anti-reflective films (matt surface)
  • Matt films (scratch resistant)
  • Textured films
  • Special products
  • Conductive films


Processing of Folex films

PET films and media can be processed in various ways. These include the possibility of cutting, laser cutting (cut any shape on a laser machine / laser cutter), punching, bending, printing or heat sealing the films. Folex films can also be made self adhesive (using adhesive tapes) or antistatic. Under normal conditions, crystal-clear transparent PET film shows good ageing behaviour and does not become brittle, as it does not contain any plasticisers. Deformation under heat can be realised to a limited extent with Folex films.

Professional accessories are required for processing coated polyester films (PET films).


Use / application of Folex films

Folex films are particularly suitable for industrial and electronic applications including surface protection to touch screens and industrial signs. Possible applications and uses for matt or transparent PET sheets are:

  • Graphic overlay film for the production of membrane switches
  • Touch screens
  • Industrial signs and other graphic displays
  • Chemical resistant signs and displays
  • Panels, labels, name badges
  • Protective film for demanding surfaces (scratch resistance)
  • Stickers / production of self-adhesive labels.


Cutting service, delivery and ordering

At König Film Centre you can buy clear polyester Folex films with coating. We stock Folex products with different film surface coatings in crystal clear, matt, anti-reflective, scratch resistant and textured in film thicknesses from 130 µm - 250 µm.

We offer this high quality polyester film from our stock in Wuppertal / Germany in different thicknesses as rolls or cut to size into the required format / sheet. The maximum roll width for Folex films is 1.220 mm. Benefit from a very fast delivery of our films within a few working days. Send your order for any film / sheet product to or contact us under +49 202 3177119-30.

Due to our extensive and long experience as a specialist for technical films, we have a wide know-how in the field of technical films and media. We will be happy to advise you on the best and most economical choice for your project. Do you need data sheets or a sample to convince yourself of the product properties and transparency of these films? Please feel free to contact the König Film Centre. We look forward to your enquiry!


  • high UV stability
  • very good printability, good ink adhesion
  • attractive look and feel
  • high mechanical and chemical stability
  • excellent scratch resistance
  • available in different surfaces


Polyester films can be processed in various ways.

  • printing
  • cutting
  • punching
  • embossing
  • laser cutting
  • bonding

For further information please contact us!


  • graphic overlay film for membrane switches
  • back-printing of signs and other graphic displays
  • panels, labels, name badges
  • touch screens
  • protective film for demanding surfaces
  • technical screen printing using solvent-based colours
  • stickers/self-adhesive labels 

Product overview

    0,13 mm to 0,18 mm

    Roll widths
    610 mm and 1220 mm


    both sides polished, matt or finely textured

     Folex® GO MA

    trasparent, one side matt, printable, UV resistance

     Folex® GO FT NQ

    trasparent, one side finely textured, printable, UV resistance
     Folex® GO HC NQ clear, polished on both sides, scratch resistant, printable, UV resistance



100 µm to 175 µm

Roll widths
» 1.220 mm
» 1.250 mm

transparent, white

glossy on both sides

  Melinex 506

  clear, both sides polished and pretreated

  Melinex ST 506

  clear, both sides polished, pretreated and

  heat stabilized

  Melinex ST 507   

  nature, both sides polished and heat stabilized

  Melinex 339

  white, both sides polished