Abstract: Use of solid, finely divided urea compounds to prevent edge migration when stoving electrophoretically deposited electrodeposition lacquers, and electrodeposition lacquers with a content of 0.1 to 5 wt. % of urea compound, related to resin solids.

Abstract: A process for the effect coating of polar plastics parts having a grained surface, characterised in thata) a first coating layer, which is free from effect pigments and modified polyolefines and which comprises a coating medium based on physically drying binder vehicle systems which contain one or more polyurethane resins and/or oligomeric urethanes and which do not chemically crosslink at the temperatures employed in process step f), is applied at a dry coat thickness of 5 to 40 .mu.m,b) is dried at 20.degree. to 80.degree. C. down to a residual content of 3 to 20% by weight of the volatile fractions which are contained in the applied coating film at the temperature employed,c) is overcoated wet-into-wet with an effect base lacquer,d) is dried at 20.degree. to 80.degree. C.

Abstract: A simplified process for producing a corrosion-protecting, well adhering lacquer coating, and the workpieces obtained thereby, is described. The process comprisessubjecting a metal substrate to a pre-treatment by spray or dip phosphate treatment and without subsequent passivation treatment, optionally after a drying,carrying out an electrophoretic dip lacquer coating of the metal substrate treated in this way wherein an electro dip lacquer is used which contains bismuth in the form of an organic bismuth complex and/or a bismuth salt of an organic carboxylic acid in a content of 0.1 to 5 wt. % calculated as bismuth and related to the binder solids in the electro dip lacquer.