Kultapäällystys

Kultapäällystys, commonly known as gold plating, is a surface finishing technique that involves depositing a thin layer of gold onto a base metal. This process is typically achieved through electroplating, where the object to be plated is immersed in a solution containing gold ions and then subjected to an electric current. The current causes the gold ions to adhere to the surface of the object, forming a thin, uniform coating.

The primary purpose of gold plating is often aesthetic, providing a luxurious and attractive appearance. However, it also serves functional purposes. Gold is highly resistant to corrosion and tarnishing, making plated items more durable and less prone to degradation. This property makes it valuable for jewelry, decorative items, and high-end electronics where reliable conductivity and resistance to environmental factors are important.

The thickness of the gold layer can vary significantly depending on the application. Thicker coatings offer greater durability and resistance to wear, while thinner layers are more economical and primarily serve decorative purposes. The purity of the gold used for plating can also vary, with higher karat gold alloys offering a richer color and enhanced properties. Common base metals for gold plating include brass, copper, nickel, and silver. The preparation of the base metal surface is crucial for proper adhesion and a smooth finish. Gold plating is a widely used technique across various industries, from consumer goods to specialized technological applications.