Passivation is a chemical treatment on metallic surfaces for cleaning and added corrosion protection. The purpose of passivation is for the removal of “free iron” and other exogenous foreign material from a metallic surface. During passivation a thin transparent oxide layer is formed on the metallic surface. This oxide layer is a protective surface film that inhibits chemical and atmospheric corrosion. Passivation is primarily applied to stainless steels and titanium; however other metals can be passivated either by chemical treatments or other means.

Here at Aotco, we  perform passivation on stainless steels, titanium, Inconel, nitronic 60.

Ask us about all metals.

Most common Passivation specifications are:


AMS 2700



At Aotco, we plate to your specified coating requirements.

When you require the optimum in metal plating, call AOTCO. 1-888-275-0880

Since 1975 AOTCO Metal Finishing LLC stands out in a field that demands strict adherence to customer requirements in metal plating.

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