Abstract: The present invention is related to a method of curing a coated product comprising a substrate and a UV-curable coating composition applied onto a surface of said substrate, the method comprising the steps of transporting said coated product, by means of a web path, into a curing unit comprising a rotating unit, preferably a cylindrical body, and a treatment area formed between said rotating unit and said web path, said rotating unit and said web path having an even surface, wherein said coated product when being transported through said treatment area contacts the rotating unit and the web path so that no free areas between the coated product and the cylindrical body and the web path are present in said treatment area, and UV-curing said coated product present in said treatment area.