Alumon Black 2LW

Alumon Black 2LW


Alumon Black 2LW produces a Blue-Black color. At medium concentrations it is used for Blue-Grey and Midnight Blue shades.

Chemical Properties
Physical appearance Black to dark grey powder
Chemical description metalized azo dyes
Light Fatness 8+
Weather fastness Excellent
Heat Fastness Moderate
RECOMMENDED APPLICATION DETAILS
Anodic coating thickness 5 to 25 microns
Concentration 1 - 10 g/l
pH Range 4.2 - 4.8
Dye bath temperature 55° - 60° C.
Immersion time 5 - 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.