A method of producing a base coating

1. A method of producing a base coating consists in cross-linking a powder coating - containing a binding mixture and, possibly, other known additives - deposited on the base. The binding mixture contains a polymer and a cross-linking agent. The polymer contains the following functional groups: carboxyl groups, epoxy groups, anhydride groups, hydroxyl groups, acetylacetonate groups, phosphoric acid groups, phosphorous acid groups, thiol groups or their combinations. Characterized in that a powder coating is deposited on the base. The coating optionally conists of a binding mixture, which contains at least 50 percent by mass of a polymer, capable of reacting with epoxy groups, and at most 50 percent by mass of a cross-linking agent with epoxy groups, measured with respect to the total amount of the polymer and the cross-linking agent. The cross-linking agent contains at least one linear or branching aliphatic C5-C26 chain, while the epoxy functionality of the cross-linking agent exceeds 1. The epoxy groups are located by at least one aliphatic chain. The coating optionally also contains a pigment, a catalyst, an additional cross-linking agent, fillers and other known additives. The amount of optional catalyst and the amount of the additional cross-linking agent are adjusted to ensure, that the cross-linking reaction proceeds to reach the required degree of cross-linking within 30 minutes at the temperature of 200 degrees C. Then, the coating is hardened by thermal treatment for 5 to 30 minutes at the temperature of 150-200 degrees C, until the coating is obtained, where over 20 percent of cross-linking is created by the cross-linking agent with epoxy cross-linking groups.