METHOD OF PREPARING OF PROTECTIVE-DECORATIVE PAINT AND VARNISH COATING Russian patent published in 1995 - IPC

FIELD: protective-decorative coatings. SUBSTANCE: method involves stages of defatting of metallic backing, washing with water and then with water containing inhibitor of bactericidal corrosion and ДОН-52 on the basis of primary amine C₁₀-C₁₆-fraction salt and concentrate of low-molecular fatty acid C₁-C₄-fraction taken at concentration 0.5-1.5 wt.-% following by washing with demineralized water, electroprecipitation of water-dilutable phosphating priming, drying of priming layer, enamel application and drying. Coating is applied on the metallic phosphated and passivated surfaces in the process of staining of agriculture machine units. EFFECT: excluding phosphating stage, decreased energy consumption and reagents, stable work of electrolyte, retained properties and corrosion resistance of coating.