Matt zinc coatings with a low level of surface roughness, for technical or decorative applications, made by using acid or alkaline electrolytes containing special delustering agents

摘要

Zinc coatings with an average surface roughness (RMS) of 10-150 nm. Independent claims are included for (1) electrolytes for the deposition of matt zinc coatings on a substrate, containing delustering agent(s) as well as a source of zinc ions (2) a method for the deposition of matt zinc coatings by pre-treatment of the substrate surface followed by contact with the above electrolytes .