Passivating Metal Finishing

Passivating is a process strictly applicable to stainless steel. This chemical treatment removes all ferrous metal and microscopic surface impurities such as airborne iron, steel or dust particles from stainless surfaces. These impurities may cause corrosion and, in many cases, contamination of your finished product as the part is used during production. Passivating stainless steel is accomplished by dipping the part in a bath of nitric acid. Nitric acid dissolves any free iron or other contaminants from the surface, which cleans the metal.


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