Also known as ‘alodining’ or ‘chromating’, alochroming is a chemical process that adds a corrosion-resistant protective coating to aluminium and its alloys, and acts as a primer for painted aluminium.

Although pure aluminium oxidises with air to create its own protective coating, untreated aluminium alloys have little protection against corrosion.

When used in conjunction with anodising, alochroming creates a protective coating on aluminium that doubles its resistance to salt water, compared to anodising alone.  Alochromed parts become hydrophobic with age, providing a very high level of long term protection against water or other moisture.

Benefits of Alochrom Coating

The main benefits of Alochrom coating for aluminium are:

  • Parts retain the majority of their original electrical conductivity
  • Adds no extra weight
  • Pre-process dimensions remain unaltered
  • Corrosion resistance
  • Moisture resistance
  • A primer key for paint
  • Low electrical resistance
  • Scratch repellent surface
  • Marks like fingerprints just wipe away

What Types of Alochrom we Offer

  • Alochrom 1000
  • Alochrom 1000 adds a transparent coating
  • Alochrom 1200
  • Alochrom 1200 adds a gold iridescent coating

    Surtec 650 (Trivalent)

    Iridite (N.C.P.)