The product : Hard line TZ is a hard electrolytic anodic oxidation, which is applied to aluminium and its alloys.
Hard line is a process inducing aluminium to change into alumina when oxygen is present: the oxide therefore generates directly from aluminium and is kept tightly bound to it, whereas in other galvanic processes there is only a deposit of metal on the surface to coat.

Characteristics: Hard line protects aluminium alloys from wear and corrosion thanks to its hardness which is similar to the one we find in ceramic compounds. It can be applied to a wide range of components in different industry sectors.
The electrolytic treatment guarantees the quality and dimensional precision of the coated parts.
Hard line has got anti-friction, electric-insulation and heat-resistance ,anti-corrosion and aesthetical properties.

Areas of application: Hard line can be applied to most of aluminium alloys, ranging from wrought to die-cast aluminium with a high percentage of copper magnesium, Magnesium/silicon, silicon/lead, hard line can be used in any sector where both functional and aesthetic characteristic are required.


  Main sectors of application:
  • Clothing
  • Electric household appliances
  • Electronics
  • Electric power
  • Photo/optics
  • Food industry
  • Car and motorcycle industry
  • Defence industry
  • Pharmaceutical industry
  • Medical industry
  • Mineral industry
    Machines and equipments in general
  • Machines for power production
  • Reactors
  • Monitoring and measuring instruments
  • Musical instruments