FIELD: maintenance and repair of glass ceramic, glass enamel and other protective coats; petrochemical, chemical, food-processing and pharmaceutical industries. SUBSTANCE: proposed method includes cleaning of damage surface and areas around it, placing one or several permanent magnets to ensure pressing force onto base surface followed by application of chemically resistant composition of surface protected. EFFECT: enhanced efficiency of repair; avoidance of damage to metal in area of defect. 1 dwg, 2 ex
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