Gold plating is done through step-by-step process. The surface of the base metal is cleaned of dirt and other surface impurities. The final plating process involves careful cleansing to remove solvents.
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Methods of gold plating process used by goldsmiths.
1. THE PROCESS OF
GOLD
ELECTROPLATING
Gold plating is the process of coating the surface of
another metal with gold to enhance its appearance.
This process is commonly used by goldsmiths for
making gold jewellery. The following points will briefly
explain how gold plating is done in a step-by-step
manner.
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2. SURFACE CLEANING
The surface of the base metal used is cleaned of dirt and other surface impurities by using abrasives,
solvents, acid cleaners, etc. After this, the surface is inspected for any remaining contaminants.
3. FINAL PLATING
After carefully rinsing with water to remove solvents, a thin strike layer is applied to the base metal.
This layer can improve bonding between the base metal and gold plating. The layer prohibits
contamination of tanks used in plating process.
4. SURFACE CLEANING
The base metal item is attached to a negatively-charged cathode and is dipped in a positively charged
solution containing gold ions. Due to the charge difference, the gold ions are attracted towards the
base metal and get applied as a layer on their surface. The plating process can be repeated in multiple
cycles to get a smoother finish.
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