Sealing:Sealing as defined by this DBL is the creation of an organic or inorganic protective coating witha layer thickness of approx. 0,5-2μm on zinc flake, zinc or zinc alloy coatings. The sealing onzinc or zinc alloy surfaces is normally applied on passivated surfaces, whereby the sealingpenetrates into the passivation layer forming a composite coating. Depending on the sealingagent, the sealing shall be executed wet on wet or following intermediate drying. The sealingagent may be provided with pigments for coloration (black). Top coats or subsequent paint applicationswith greater layer thicknesses shall not be used as sealings.Sealings may incorporate suitable additives for the adjustment of the required defined coefficientsof friction. The combination of sealings with integrated lubricants and subsequent lubricationshould be avoided, if possible.