LW-03 is a creamy-white to grey-brown powder for coloring to aluminum profile after anodizing. It has excellent comprehensive properties of stable bath solution, uniform coloring, good reproducibility, clear and full color. It is a solid powder of easy water-soluble and stable performance.
| Bath Make-up： | ||
|---|---|---|
| Name | Quantity | Unit |
| LW-03 | 20 | g/L |
| Nickel Sulfate (NiSO4.6H2O) | 20 | g/L |
| Stannous Sulfate (SnSO4) | 6-10 | g/L（lighe color:6g/L,dark color:10g/L） |
Sulphuric Acid Reagent | 16 | g/L |
| Deionized Water | Balance | |
| Operating Conditions： | ||
| Name | Quantity | Unit |
| Sulphuric Acid (H2SO4) | 16-25 | g/L |
| Stannous Sulfate (SnSO4) | 6-15 | g/L |
| Voltage | 16-19 | V |
| Temperature | 18-25 | ℃ |
| PH | 0.5-1.2 | |
| Time | Depends on the depth of color | |
Solution Maintenance： | ||
| 1、Analyze the concentration of free sulphuric acid, stannous sulfate, nickel sulfate and total acid daily. Maintain the concentration of free sulphuric acid above 16g/L and total acid around 40g/L. To increase the stannous sulfate by 1 kg, add 1.5 kg of LW-03. | ||
| 2、The pure water is suggested be added slowly with stirring to prevent the hydrolysis of stannous sulfate and cause solution turbidity. | ||
| 3、There will be white precipitates in long-term production. So the bath should be filtered and cleaned regularly. | ||
| Packaging and Storage： | ||
| Package: Carton (30kg/ carton), plastic woven bag (25kg/bag) | ||
| Storage: Suggested to store in a cool, dry and well ventilated place; away from fire and heat source,and avoid light storage. | ||
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