Acid zinc rack plating is a surface treatment process in which large-scale or complex sensitive parts are individually placed on racks and coated with high-brightness zinc. This method delivers excellent results especially on metal surfaces that are difficult to coat, such as cast iron or heat-treated steels. Thanks to the high current efficiency of acid electrolytes, coating thickness builds up rapidly on the parts, creating a naturally bright, silvery appearance without the need for mechanical polishing.
In terms of sectoral use, it is widely preferred in areas where both visual quality and corrosion resistance are important, such as architectural accessories, automotive parts and white goods components. The rack system prevents the parts from touching each other, eliminating impact marks on the surface and ensuring a homogeneous appearance. Supported by different passivation options such as blue, yellow or white, this coating type extends the service life of parts while offering the stylish and professional finish required by modern industry in the most economical way.