Production of a coating for protecting silver, silver alloy or silver plate articles against tarnishing comprises applying a solution comprising a solvent, a catalyst and a polysilazane

摘要

Production of a coating for protecting silver, silver alloy or silver plate articles against tarnishing comprises applying a solution comprising a solvent, a catalyst and a polysilazane with a molecular weight of 150-150000 onto the article without subsequently applying a fluorosilane or fluorine-containing condensate. An Independent claim is also included for silver, silver alloy or silver plate articles which are protected against tarnishing with a polysilazane and on which no fluorosilane or fluorine-containing condensate is applied.