Growgold Description Application: A Gold plating process with a wide variety of colours. The Growel Advantage: It offers maximum purity of 22-24 karat Gold and a variety of colours. The deposits from the Growgold processes do not tarnish or discolour and offer excellent resistance to corrosion. It is an easy, manageable process for the rack as well as barrel operations. It can plate up to 5 microns without a change in colour or surface texture. The Growgold processes are suitable for all decorative applications and are ideal for fine jewellery applications. get a quote