With the development of technology, the demand for high-quality varnish coatings on metal products increases for anti-corrosion, decorative and ecological reasons. More and more often, cast iron, cast steel, steel and non-ferrous metal elements are coated with powder paints of high smoothness, gloss, texture and rich colors. These coatings are also highly resistant to corrosion. Out of many painting techniques, powder coating is one of the clean technologies with no emission. For this reason, powder paint shops can be located, unlike a paint shop with solvent-based paints, even in the city center.