ELECTRONIC SURFACE TREATMENT MATERIAL SUPPLIER

Zinc Passivation

Zinc passivation is a chemical treatment applied to zinc-coated metals to enhance corrosion resistance by forming a protective, inert layer on the surface. Zinc passivation, also known as chromate or conversion coating, is a process that creates a thin, protective layer on zinc or zinc-alloy surfaces. This layer chemically reacts with the zinc to form a zinc-chromium complex, which acts as a barrier against moisture, oxygen, and salts, preventing the formation of white rust (zinc hydroxide) and extending the li...