Coating passivated metallized surfaces of components comprises activating surfaces using surfactant-containing solution or reducing agent or direct voltage or by sputtering, and coating activated surfaces with sol and forming gel.

Abstract
Die Erfindung betrifft ein Verfahren, das sich eignet, auf Metalloberflaechen, insbesondere Chromoberflaechen, insbesondere von Sanitaer- und Kuechenarmaturen, eine dauerhaft haftende, stabile, Schmutz und Wasser abweisende Beschichtung aufzubringen, sowie die solchermassen beschichteten Bauteile. Das Verfahren beruht darauf, dass die Oberflaeche zunaechst chemisch und/oder physikalisch aktiviert und dann mittels eines Sols beschichtet wird.

 

EP 1277851 A UPAB: 20030307 NOVELTY - Coating passivated metallized surfaces of components comprises chemically activating the surfaces using a tenside-containing solution or by reducing using a reducing agent or direct voltage or by physically activating the surfaces by sputtering; and coating the activated surfaces with a sol and forming a gel. DETAILED DESCRIPTION - Preferred Features: The surfaces energy is increased to more than 40, preferably more than 50 mN/m after being activated. During chemical activation, a direct voltage is applied to the component. During physical activated, the sputtering is carried out in a hydrogen-nitrogen-argon atmosphere. The coated surface is made from smooth or structured chromium, steel, nickel and/or aluminum. USE - Used for coating the surfaces of sanitary and kitchen fittings. ADVANTAGE - The coating effectively avoids the adhesion of dirt.