Method of dip coating conductive substrate with post-treatment with aqueous sol-gel composition prior to dip coating curing

摘要

The present invention is a method for at least partially coating a conductive substrate, at least (1) electrophoretically depositing an immersion varnish containing at least one binder onto the surface of the substrate. A step of at least partially coating the substrate with the immersion varnish, and (2) contacting the substrate at least partially coated with the immersion varnish with an aqueous composition, The aqueous composition used in (2) is an aqueous sol-gel composition, and the step (2) is performed before the electrophoretically deposited immersion varnish is cured; An at least partially coated substrate obtained by this method, and an immersion at least partially applied to the conductive substrate by at least partial electrophoretic deposition Aqueous sol for working up varnish layer - the use of a gel composition.