LW-22 is a light blue clear liquid for aluminum profiles coloring after anodizing, especially for the high quality external wall decorative products.
Its advantages are as following:
1) Good dispersing and complexation ability.
2) It can effectively prevent from edge effect of copper salt coloring.
3) Good stability as well as good homogenization and reproducibility performance.
| Bath Make-up： | ||
|---|---|---|
| Name | Quantity | Unit |
| Copper Sulfate (CuSO4·5H2O) | 10-15 | g/L |
Sulphuric Acid Reagent | 20 | g/L |
| LW-22 | 40 | g/L |
| Deionized Water | Balance | |
| Operating Conditions： | ||
| Name | Quantity | Unit |
| Copper Sulfate (CuSO4·5H2O) | 10-15 | g/L |
| Sulphuric Acid (H2SO4) | 18-25 | |
| Temperature | 15-25 | ℃ |
| Time | Depends on the depth of color | |
| Voltage | 12-16 | V |
| Solution Maintenance： | ||
| 1、 Analyze the concentration of copper sulfate and free sulfuric acid everyday, control it in the required range, and replenish in time. | ||
| 2、The consumption of LW-22 is 5kg for each tone aluminum profile treatment, and the addition is according to the production capacity. | ||
| 3、It’s better to apply electrophoretic coating for sealing after coloring process. It can be advantageous for weatherability and lightfastness as well as achieving a brilliant color on the products. | ||
| 4、It will be a little fading after electrophoresis process for coloring a light red color (The semi-sealing is required before electrophoresis). It is recommended to prepare two pieces of coloring samples for color-correction before and after the electrophoresis process. So the professional and skilled color-correction operator is required. | ||
| Packaging and Storage： | ||
| Package: Plastic barrel (25kg/barrel) | ||
Storage: Suggested to store in cool, dry and well ventilated place; away from fire and heat source. | ||
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