Electrolytic polishing (Electro polishing, electropolishing, EP) uses an electrolytic reaction to melt metal surfaces such as stainless steel, titanium, and aluminum. This process is used to melt ultra-fine irregularities and turn the objects into smoothed and mirrored metal surfaces. A homogeneous, chrome-rich passivation film with excellent corrosion resistance is formed on the electropolished metal surface.

Even if the stainless steel is buffed, there are still fine burrs, scratches, particles, etc. remaining on the surface. In the case of pipes and tanks used in food and chemical factories, it may lead to quality and safety problems such as the growth of germs due to stagnant substances, the effect on product composition, and corrosion of metal surfaces.