FF-7720 Matte Tin Plating Process
1. Operation conditions
| Item | Range | Best | Note |
| Stannous sulfate | 15～25 g/L | 20 g/L | |
| Sulfuric acid | 80～120 ml/L | 100 ml/L | |
| FF-7720 | 10～20 ml/L | 15 ml/L | |
| Temperature | 15～25℃ | 20℃ | |
|
Cathode current density |
1.0～4.0 A/dm2 | 2.0 A/dm2 | Rack plating |
| 0.5～3.0 A/dm2 | 1.0 A/dm2 | Barrel plating | |
| Anode current density | 1.0～3.0 A/dm² | 1.0 A/dm² | |
| Agitation (Cathode move) | 3 ~ 4 m/min | 3 ~ 4 m/min | Not suitable for air filling |
| Anode (pure Tin) | Anode basket with PP bags | ||
| Cathode : Anode area | 1:1~2 | ||
| Air exhaust | Required | ||
| Recycling filtering | 4~5 times/hour, mesh size of filter cartridge is 5~10 μm | ||
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