Electrochemical Methods for Improving the Strength of Adhesion of One-Coat Glass Enamels to Substrate

A method for pretreatment of steel surface before one-coat enameling is proposed, which makes it possible to obtain an enamel coating with sufficiently strong adhesion and good surface quality. The essence of this method is electrolytic precipitation of nickel and copper layers on steel surface. A composition of one-coat enamel coating based on aluminum-bearing waste has been developed. Tinted one-coat enamels have been obtained based on this composition.