For example, gold and gold / cobalt alloy coatings are suitable for connectors for the electronics industry, batteries, LED manufacturing, professional halogen lamps, aerospace components, radar equipment, and high temperature brazing.
Chromium coatings are popular in the automotive, furniture and many other industrial sectors for their decorative appearance. Fields of application of hard chrome are heavily stressed workpieces such as brake discs, ball valves in pipelines or rollers and cylinders of all kinds in the printing industry, film production, paper production, the food industry and in mechanical engineering.
Copper coatings alone are seldom needed, as copper tends to turn green, especially in moist air. However, it can serve as a painting substrate.
Nickel-plating as a final coating for components is a possible alternative to chrome coatings in the decorative sector. As a final coating, nickel can be polished very well from matt to glossy. Nickel sulphamate is especially recommended when extremely thick, stress-free coatings are needed. Such nickel coatings also serve as a primer for thermal spray coatings.
Due to their outstanding electrical conductivity, silver coatings are frequently used in the electronics, high-voltage and telecommunications industries, amongst others: electrical switches, high-voltage conductors or housings. In addition, silver is often used in the food industry and the chemical industry. For example, stainless steel fittings and shut-off valves are silver plated to prevent seizing and corrosion.
Tinning is mainly for technical parts that must be electrically conductive, solderable and electromagnetically shielded: housings for electrical plugs, plug contacts. Self-lubricating bearings are also an application for both tin and silver coatings.