What is Gold Plating?

July 8, 2009 · Print This Article

What is gold plating? Typically, gold plating is the method of depositing a thin layer of gold onto a conductive surface, electrochemically in our case. The surface is normally a metal base which allows a current to be passed through it to form a complete circuit allowing the gold particles in the solution to bond with the item being gold electroplated, also called the cathode.

Plastics can also be gold electroplated but these must be made conductive first. This specialized technique is normally carried out by coating the plastic, and most other non-conductive items, with a silver conductive ink which is blown on using a compressor and spray gun.

Gold plating classification for gold plated thickness is as follows:

Gold flash is equal to 0.175 microns. For example, this is often used as a base coat onto nickel prior to being silver plated to enable a good bond.

Gold plate minimum thickness is equal to 0.50 microns. Used primarily as a decorative finish on items with minimal and infrequent handling.

Heavy gold plate is equal to 2.50 microns. For a long lasting gold finish on high wear items such as; watches, buckles, auto parts and jewellery. Normal thickness applied would range between 2.5 – 6 microns dependant upon the item and its intended use.

Our specially developed gold plating solutions are designed to be extremely hard and durable and a finish of just 5 microns is often more than adequate for long term durability of high wear items.


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