A method for the treatment of a steel strip provided with a metal coating or - sheet metal with a post-treatment composition as well as a strip with a metal coating or - metal sheet.

摘要

The present invention relates to a process for the treatment of a steel strip provided with a metal coating with a post-treatment agent or steel sheet, which contains at least one polyalkylene glycol and as liquid solution to the surface of the metal coating is applied. In order to allow for an improved lacquer wetting and paint adhesion and at the same time as low as possible a coefficient of friction of the coated surface and in order to achieve a good processability of the coated steel strip or - metal sheet according to the invention, it is provided that the material for the after-treatment in addition to the polyalkylene glycol a fluorescent contain antioxidant.The present invention further relates to a provided with a metal coating steel strip or sheet steel, in particular a tin plate, which on the surface of the metal coating has a thin support a aftertreating agent which, polyalkylene glycol, as well as a fluorescent contain antioxidant.