Benefits of Electropolishing

Benefits of Electropolishing• Dramatically enhances corrosion resistance by preferentially removing free iron, embedded particles and inclusions introduced during manufacturing ( potential sources of crevice and pitting corrosion) as well as by increasing the chromium to iron oxide ratio.


• Improves surface smoothness by levelling microscopic peaks and valleys. 50% or better RA improvement on mechanically polished surfaces may be possible.


• Improves surface reflectivity and brightness. Besides a very attractive lustrous finish, improved heat and light reflection characteristics are tangible benefits.


• Provides the most superior form of passivation of stainless steels. Electropolishing is recognized by ASTM International in the Standard Specification B 912-02: Passivation of Stainless Steels Using Electropolishing.


• Facilitates maintenance of a hygienically clean surface that is resistant to bacteria growth or bacterial biofilms due to a smoother surface and the dissolution of embedded contaminants. Less friction and surface drag are features of electropolished surfaces. This results in reduced product adhesion and ease of cleaning. Because electropolishing is not a surface coating, there is no risk of the surface distortion or peeling over time.


• Unlike mechanical polishing, no directional lines, smearing, occlusions, or fracturing of crystalline metal surfaces.


• Reduces or eliminates stressed and disturbed layers caused by heat treating, decarburization, microscopic scratches, tool marks, grinding checks, cutting and abrasive finishing, thus greatly improving fatigue life. Electropolishing will not introduce new or different stresses that will adversely alter metal fatigue characteristics.


Improved weldability: provides a low resistance surface for welding with less splatter and surface damage.


• Simultaneously micro-deburrs while it polishes. Ideal for delicate and intricate parts.


• Aesthetically appealing chrome-like appearance for formed sheet metal components without the high costs and environmental disadvantages of chrome plating.


Economical polishing of large numbers of small parts and of intricate surfaces that are inaccessible to mechanical polishing.