With zinc plating, the substrate serves as the cathode. Electrical current is applied – An electrical current is used to deposit metal ions onto the surface of the substrate.(Albers Finishing & Solutions will be adding barrel plating soon.) Barrel plating is normally used for smaller parts they are placed inside a barrel and rotated, providing a more uniform finish. It may be rack plating for larger parts, where parts are affixed to metal racks and placed inside the tank containing the plating bath and remain stationary or barrel plating. Zinc plating procedures: After solution preparation, the appropriate method is chosen for plating.Acid zinc – A widely used plating technology known for its efficiency with fast deposition and superior covering power.There are specific types of zinc electrolyte solutions. It consists of the zinc metal ionic solution and various chemicals that facilitate plating processes and help produce the desired chemical and physical properties of the finished product. Plating solution is prepared: The substrate requires immersion into a specially formulated electrolyte solution referred to as the plating bath.Alkaline detergent solution is used for cleaning, followed by an acid treatment to remove any surface rust (referred to as pickling). Debris and contaminants remaining on the surface will prevent proper adhesion of the zinc coating. Preparation and surface cleaning: The substrate must be thoroughly prepped by cleaning the surface prior to plating.

Typically, this is how a zinc-plating process works:

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