ALKALI-RESISTANCE, WEAR-RESISTANT AND DISHWASHER-SAFE COATING ON A SUBSTRATE

摘要

A method is described for producing a protective coating, comprising a base coat and a top coat, on a substrate, wherein a) a coating composition that comprises a binder component made of a hydrolysate or condensate of one or more hydrolysable silicon compounds, wherein at least one hydrolysable silicon compound comprises at least one non-hydrolysable organic group, and a flexibilization component made of at least one linear inorganic polymer, is applied to the substrate in wet chemical fashion and densified in order to form the base coat, and b) a coating composition that comprises at least one basic alkali metal compound and a hydrolysate or condensate of one or more hydrolysable silicon compounds, wherein at least one hydrolysable silicon compound comprises at least one non-hydrolysable organic group, is applied to the base coat in wet chemical fashion and densified in order to form the top coat. Alkali-resistant, dishwasher-safe and wear-resistant protective coatings are thereby obtained.