Iran-Made Zirconium-Based Nanocoating Capable of Increasing Resistance to Corrosion, Erosion

Using convertible coatings is one of the common and cost-effective methods in industries for metals’ surface coating.

In addition to improving the corrosion resistance of the substrate, the convertible coating method increases the adhesion of the paint to the surface.

Phosphate or chromate convertible coatings are the most commonly used types of coatings.

Efforts have been made to replace phosphate and chromate coatings with coatings containing other materials such as zirconium oxide, titanium oxide, and vanadium oxide to narrow down environmental side effects and people’s health hazards.

In this line, an Iranian knowledge-based company has produced zirconium-based nanocoating for metal equipment and parts.

Unlike phosphate and chromate coatings, zirconium-based nanocoating does not bring about environmental problems and meantime the process will be carried out at natural temperature and in a shorter period of time.

The zirconium-based nanocoating has also the advantage of lower weight compared to chromate or phosphate coating.

Obtaining a coating with a thickness of fewer than 100 nanometers on the metal surface, the ability to operate at natural temperature, the absence of harmful substances for human health and the environment, and the low cost of implementation are main advantages of the Iran-made product.

Applying the coating with a very thin thickness (in nanometer dimensions) on steel, aluminum, and galvanized surfaces improves parameters such as adhesion of the organic coating, resistance to paint corrosion, and resistance to cathodic separation of paint.

4155/g