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Alumon Black MLW
Alumon Black MLW Powder is ideally suited black colorant for architectural quality applications because of its excellent light and weather fastness.
| Physical appearance | Black to dark grey powder |
| Chemical description | Metalized azo dye |
| Light Fatness | 8+ |
| Weather fastness | Excellent |
| Heat Fastness | 120° C. |
| Anodic coating thickness | More than 15 microns |
| Concentration | 8 - 10 g/l |
| pH Range | 4.2 - 4.8 |
| Dye bath temperature | 55° - 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.
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