Abstract
The article refers to the application of paint coatings on the base, that is, metal. On the surface of metal structures or metal products, a thin layer of paint and varnish material is applied, which allows you to protect the substrate from harmful environmental factors.There are several ways to apply protective coatings the article talked about the advantages and disadvantages of each of them. in the course of the analysis, the method of applying the paint coating by spraying was chosen. This method allows you to save paint and varnish material, controlthe thickness of the applied layer and use the necessary amount of materials to obtain reliable protection of the metal. The article also provides an analysis of the spray guns that are used today.A method was proposed to change the design of the spray gun for applying materials of different consistency such as primer varnish paint etc.