Yellow chromating is a chromating layer for aluminum components containing chrome 6+ – also known under the trade name Aludine or Iridite.
The yellow chromating process is a chemical coating/conversion coating, that maintains and adds chemical/technical qualities to the surface.
- Partial corrosion protection.
- Very good adhesion ability.
- Is not damaged by bending, etc.
- Temperature-resistant up to approximately 130°C.
- The chromating layer is insoluble in water and other organic solvents – however, it can be dissolved in strong acids and alkalis.
- Weak electric resistance that does not affect the ability to weld the material.
- Instruments, office machines, electronics etc.
Structure and look after the treatment
- The metallic impression is maintained.
- The chromate layer is light to dark yellow.
- The surface gets the look corresponding to the chosen pre-treatment.
- The layer thickness is typically 1-3 µm depending on the processing time.
- The weight of the layer is 0.1 to 1 g/m2.
- Cannot be dyed.
- Most alloys can be used.
Yellow chromating meets the standards.
- DIN 50939
Aludine and Iridite has been added to the QPL list.