Alumon Black 2

Alumon Black 2

Alumon Black 2 is a Light fast and heat fast neutral black dye suitable for exterior application. The dye bath is stable against contamination by drag-in of sulfates or aluminum salts from the anodizing electrolyte.

Chemical Properties
Physical appearance Black to dark grey powder
Chemical description metalized azo dyes
Light Fatness 8+
Heat Fastness Excellent
RECOMMENDED APPLICATION DETAILS
Anodic coating thickness 10 - 25 microns.
Concentration 5 - 8 g/l
pH Range 4.5 - 6.0
Buffering Sodium Acetate or Acetic Acid
Dye bath temperature 50° - 60° C
Immersion time 10 - 20 minutes

SEALING:

The dyed oxide film must be properly sealed properly using a cold sealing salt ANO SEAL C-200 for best result.

Other Recommendation:

  • Ammonium compounds shall not be used for controlling of the pH or to buffer dye bath solution.
  • The presence of ammonium compounds in the sealing solution may cause leaching and loss of color.
  • Use sodium acetate for dye buffer.
  • Adequate care to be taken for proper rinsing to control drag-in for optimum tank life.
  • Dye may be dissolved separately outside the dye bath. Use demineralized water for better dye bath stability.
  • The life of dye bath is reduced by water containing ammonium.