SN-6 Electrolytic Coloring Additive of Fresh Brown Color
This additive is a blue liquid. The SN-6-produced bronze color is brilliant, much better than that produced by the conventional Sn-Ni salt, with the same good lightfastness.
1. Bath Composition (For make-up):
SN-6
H2SO4
Deionized Water
80-100g/L
15-20g/L
balance
2. Processing Parameters:
Voltage
Temperature
Time
10-20V
20-30℃
1-8min
3. Bath Maintenance:
(1) Analyze the contents of SN-6 Additive and H2SO4 daily and make compensation in time if necessary so as to minimize the fluctuation of contents.
(2) During stop-work, the coloring tank has to be covered so as to prevent the contamination with other solution.
