Alumon Black 2LW
Alumon Black 2LW produces a Blue-Black color. At medium concentrations it is used for Blue-Grey and Midnight Blue shades.
Physical appearance | Black to dark grey powder |
Chemical description | metalized azo dyes |
Light Fatness | 8+ |
Weather fastness | Excellent |
Heat Fastness | Moderate |
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.