GOLD ELECTROPLATING (GOLD PLATING) OF ARTWORK USING THE ZLATOUST METAL ENGRAVING TECHNIQUE

Abstract

Electroplating is an essential and key stage in the production of artistic objects using the Zlatoust metal en-graving technique. This method allows for the application of a thin yet durable layer of gold to the surface of objects, providing not only high decorative and aesthetic qualities but also reliable protection against corrosion and wear. This article describes in detail the technological features of electroplating used at Zla-toust enterprises, including surface preparation, the choice of electrolytes, and deposition modes. Particular attention is paid to the need for preliminary nickel plating of the object, which prevents copper diffusion into the gold coating and improves its adhesion. The transition from traditional cyanide electro-lytes to safer citric acid compositions that meet modern environmental requirements is considered. The composition of the gilding electrolyte, process parameters (temperature, current density, pH), and coating quality control methods are presented. The influence of the gold layer thickness (from 0.1 to 5.0 μm) on its porosity, durability, and decorative properties is studied. The importance of meticulous preparation – from degreasing and pickling to proper mounting – is emphasized. The combination of traditional crafts and modern electrochemical technologies preserves the uniqueness of Zlatoust engravings, ensuring their high artistic and functional value for decades to come.