Electropolishing

Electropolishing is an electrochemical process that smooths and enhances the surface of stainless steel. The treatment is carried out by immersing the component in an electrolyte bath and connecting it as the anode. When current is applied, a thin layer of material is dissolved from the surface. Material removal occurs faster at microscopic peaks than in valleys, resulting in effective leveling of the surface structure. The result is a smooth, clean, and bright surface without mechanical processing. Typical material removal ranges from approximately 5–50 µm depending on requirements and application.

Electropolishing is used in applications where both function and surface finish are critical. In marine environments, the treatment provides increased protection against corrosion from saltwater, while in industry it offers strong resistance to chemicals and high temperatures. In the food and pharmaceutical sectors, it creates smooth surfaces that are easy to clean and reduce the risk of bacterial adhesion. Electropolishing is also an important process in medical technology for components with high requirements for cleanliness and surface smoothness.

An electropolished surface becomes smoother, which reduces friction and facilitates both assembly and use. At the same time, corrosion protection is improved as the surface becomes passivated, increasing the material’s resistance in demanding environments. The smooth structure also provides high cleanliness and good hygienic properties, while the surface finish becomes uniform and reflective. Wear resistance is also improved, making the surface more resistant to mechanical stress without compromising the integrity of the material. Overall, this contributes to reduced wear and a lower risk of contaminants or deposits adhering to the surface.