Polyester: clear / printable / heat resistant

Melinex® 506

Melinex® 506

Melinex® 506 is a glossy and optically clear polyester film with excellent printability and ink adhesion. The heat resistant PET film is normally used in the graphics industry where its excellent clarity and printing/coating adhesion are utilised. Melinex® 506 is available in th thicknesses between 100 µm - 175 µm is offered in rolls or sheets.

AvailabilityArticle Surface Colour Width Thickness
428846 POLISHED/POLISHED CLEAR 1250 0.1
428848 POLISHED/POLISHED CLEAR 1250 0.125
428852 POLISHED/POLISHED CLEAR 1220 0.175
Melinex® ST 506

Melinex® ST 506

Melinex® ST506 film is an optically clear polyester film with excellent printability and ink adhesion suitable for MTS graphics and circuitry applications. The heat resistant polyester film is pre-treated on both surfaces to give enhanced adhesion to inks and lacquers, making it particularly suitable for graphics and circuitry layers of membrane touch switches. Melinex® ST506 film is UL 94 VTM2 listed and available in thicknesses of 125 - 175 µm in rolls and sheets.

AvailabilityArticle Surface Colour Width Thickness
428860 POLISHED/POLISHED INK RECEPTIVE COATING AND STABILIZED CLEAR 1250 0.125
428862 POLISHED/POLISHED INK RECEPTIVE COATING AND STABILIZED CLEAR 1220 0.175
Melinex® ST 507

Melinex® ST 507

Melinex® ST507 is a hazy polyester film for flexible printed circuit applications, ideal for use with low temperature solder reflow. It is a heat stabilised film particularly suitable for use as the circuit layer in membrane touch switches. It is available in the thickness of 125 µm and offered in rolls and sheets.

AvailabilityArticle Surface Colour Width Thickness
428635 POLISHED/POLISHED STABILIZED NATURE 1220 0.125

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Clear polyester films

The König Film Centre offers you crystal clear polyester films of the brand Melinex. This is a high-quality, biaxially oriented PET film (so-called BO-PET film). A biaxially oriented polyester film consists of the plastic polyethylene terephthalate. It gets its properties in the production by a special stretching process in two directions (biaxially).

Properties of transparent polyester films

Clear transparent polyester film is characterised by excellent chemical, mechanical and thermal resistance. It is also extremely tensile and tear resistant. A polyester film is a good electrical insulator, has low moisture absorption (0.3%) and a high dielectric strength.

Is polyester film crystal clear?

For many applications a crystal clear film is required. Customers often ask us if polyester film is transparent and if polyester film is really clear. Our Melinex PET films have excellent transparency and a glossy surface.

Is polyester film heat resistant?

Clear polyester films have a high temperature stability and can be used permanently at temperatures from - 70 °C up to 150 °C. The melting point of temperature-stable films is over 200 °C. The temperature-stable polyester films Melinex ST 506 and Melinex ST 507 are additionally thermostabilised. These films have an increased dimensional stability. A dimensionally stable plastic is less prone to moisture absorption and low thermal expansion.

Is polyester film printable?

Polyester films are usually not good for printing. We carry many polyester films with special coatings (print pre-treatment) that make the films excellent and consistently printable. Common printing methods include screen printing, printing with UV-curable and solvent-based inks, as well as varnishes, silver-conductive and dielectric inks. For more information on printability, please contact us!

Processing

PET films can be processed in various ways. These include the possibility of cutting, die-cutting, bending, printing, heat-sealing and self-adhesive finishing of the films. Under normal conditions, a PET films does not become brittle as it ages because it does not contain any plasticisers. Deformation under heat is possible to a limited extent with polyester films.

No special accessories are required for processing polyester films.

Applications

Polyester films are designed for industrial and electronic applications. They are used in the automotive, electrical, electronics, card, pharmaceutical, packaging and many other industries. Possible applications are:

  • Flexible printed circuits.
  • Membrane keypads.
  • Technical screen printing with solvent inks.
  • High quality labels.
  • Industrial moulded and punched parts.
  • Displays.
  • Various industrial applications.

Our service

We offer our polyester films in various thicknesses and properties as rolls or cut to the desired format.

Due to many years of experience as a supplier of polyester films, we have an extensive know-how. We will be happy to advise you when looking for the right polyester film for your application. We will send you technical data sheets or samples for initial tests. Please contact us, we are looking forward to your request!