PSV-72 PASSIVATION - Passivation is a chemical process used to enhance the corrosion resistance of metals, particularly - stainless steel and aluminum. It involves treating the surface with a mild oxidant, such as nitric acid or - citric acid, to remove free iron and contaminants. This creates a thin, protective oxide layer that prevents - rust and degradation. * Key Aspects of Passivation: 1 Purpose: Improves corrosion resistance by forming a passive oxide layer. 2 Common Metals: Stainless steel, aluminum, titanium, and other corrosion-resistant alloys. 3 Chemicals Used: Nitric acid, citric acid, or other oxidizing agents. 4 Application Areas: Aerospace, medical devices, automotive, food processing, and marine industries. 5 Comparison to Coatings: Unlike powder coating or spray applications (like Airmix or Inogun). passivation does not add a physical layer but rather enhances the existing metal surface.# PSV-72 PASSIVATION Manufacturer.