Electroplating Additive Silver Plating (CORONA)

An additive for cyanide bath
- It gives very good bonding to coating
- Only 30-60 ml of CORONA needs to be added per litre
- Low current density and low voltage is required (2-3 Volts)
- It also adds heat resistance to coating
- It may increase the rate of deposition
- Plating can be done with the help of only Steel anode, instead of silver anode in conventional plating techniques
- Requires much less capital investment
- It is Non-hazardous to skin
- Plating up to 15-20 microns or even more can be done, as and when required
- Only 30 gm. of cyanide/ litre is required
- Only 2-3 gm. of SPC per litre needs to be added
- Operating cost of this technique is much less as compared to conventional plating techniques
- Iron can be directly silver plated without any undercoat
- Only one time addition