Pickling is a surface treatment used to remove impurities, such as stains, inorganic contaminants, rust or scale from metals. Our pickling solution contains acid that is used to remove these stains and surface impurities. After pickling, the part is left with a dull, clean, uniform finish. When pickling process is completed the part then gets passivated to restore the oxide layer and neutralize the acids, giving the part higher corrosion and rust resistance.
Pickling can be used for a variety of processes. It does not reduce the surface roughness of an object; it actually slightly raises it. Pickling can be used to remove surface discoloration, cleaning steel parts, as well as leaving it with a corrosion and rust resistant surface.