ZN-820 Acid zinc plating ; The coating has fine crystal, good gloss and easy passivation
I. Properties
1. The coating is white and bright, and the light is fast;
2. Ultra low consumption;
3. Excellent covering and deep plating ability;
4. The coating has fine crystal, good gloss and easy passivation.
2. Bath composition and Operation condition
| Bath composition and Operation condition: | Rack plating | Barrel plating |
| KCl | 180~220g/L | 200~240g/L |
| ZnCl2 | 60~70g/L | 45~60g/L |
| H3BO3 | 25~35g/L | 25~35g/L |
| ZN-820 B brightener | 0.5~1.5ml/L | 0.5-1.5 ml/L |
|
ZN-820 A base solution |
20-30ml/L | 20-30 ml/L |
| PH | 4.5~6.0 | 5.0~6.0 |
| Cathnode current density(Dk) | 0.5~5A/dm2 | 0.1~3A/dm2 |
| SK:SA | 1:1.5~2 | 1:1.5~2 |
| Anode | 0＃zinc ingot | 0＃zinc ingot |
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