katodipinnoitteiset

Katodipinnoitteiset refers to a Finnish term describing objects or surfaces that have undergone a cathodic coating process. This method is a type of electrocoating, specifically electrodeposition painting, where the substrate to be coated acts as the cathode in an electrolytic bath. The coating material, typically a paint or primer, is suspended in an aqueous solution and carries an electrical charge. When a direct current is applied, the charged coating particles migrate towards and deposit onto the negatively charged (cathode) object.

This process offers several advantages, including uniform coating thickness across complex shapes and in recessed areas, excellent corrosion resistance, and efficient material utilization due to the precise deposition. It is widely used in industries such as automotive manufacturing for prime coating of car bodies, as well as for coating appliances, metal furniture, and various industrial components. The resulting film is typically thin, durable, and provides a good base for subsequent painting layers. The term emphasizes the role of the object as the cathode in the electrodeposition process.