In order for the metal structures to serve the period declared by the manufacturer, they must be treated with a special corrosion compound. Although it has a fairly high strength, the metal is still subject to the harmful effects of moisture compared to many other materials.

The role of the primer or the so-called. corrosion inhibitor is to prepare the surface for subsequent painting. Thanks to the primer, the adhesive characteristics of the surface increase, and this improves the adhesion of the paint to it. The primer not only plays the role of the preparatory layer, but also assumes the function of the primary protective barrier of the metal from the negative effects of the external environment.