Direct factory and process, lowest-price thru e-commerce. Silver & white gold plating, wholesale price. Direct order and process from factory. Gold plating[edit]
Main article: Gold plating
Gold plating is a method of depositing a thin layer of gold on the surface of glass or metal, most often copper or silver. Gold plating is often used in electronics, to provide a corrosion-resistant electrically
conductive layer on copper, typically in electrical connectors and printed circuit boards. With direct gold-on-copper plating, the copper atoms have the tendency to diffuse through the gold layer, causing tarnishing of its surface and formation of an oxide/sulfide layer. Therefore, a layer of a suitable barrier metal, usually nickel, has to be deposited on the copper substrate, forming a copper-nickel-gold sandwich. Metals and glass may also be coated with gold for ornamental purposes, using a number of different processes usually referred to as gilding. Sapphires, plastics, and carbon fiber are some other materials that are able to be plated using advance plating techniques. The substrates that can be used are almost limitless.[2]
