Melinex® ST506

Image of Melinex® ST506 heat-stabilized polyester film

Melinex® ST506 is a crystal clear, high gloss, heat stabilized polyester film with excellent shrink resistance for high processing temperatures. It is pretreated on both sides for improved adhesion to a wide range of solvent-based graphic inks and varnishes, silver conductive and dielectric inks. It is ideally suited for graphic and certain circuitry layers in membrane switches and other flexible electronics applications.

Melinex® ST506 and other heat-stabilized PET films are compatible with Henkel LOCTITE® brand conductive and dielectric inks. The film’s low shrinkage properties improve yield efficiencies even at high cure temperatures.

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  • MELINEX® ST506 5 mil (125 micron)
  • MELINEX® ST506 7 mil (175 micron)


  • Print treated two sides for adhesion to inks and lacquers
  • Heat stabilized for improved dimensional stability and low shrinkage
  • Contains knurled edge (KE)
  • Good chemical resistance
  • Good dielectric properties

Typical Applications

  • Membrane switch layers
  • Flexible circuitry
  • Graphic applications
  • Conductive ink printing
Data Sheets & Summary Sheets

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