Abstract
The properties of protective coatings made from organic coatings on metallic substrates strongly depend on the condition of the substrate surface. This refers to the condition of the edges, welds, and the surface in general. Edge treatment is one of the most important operations prior to the actual coating application. The coating's protective properties and its susceptibility to mechanical damage are directly affected by the edge treatment. The article deals with the problem of edge treatment of the base material and the effect of this treatment on the quality of surface finishing. The edges were modified in three ways on the prepared Kosmalt E 300 T samples. Subsequently, some samples were hot-dip galvanized. An organic coating was then applied as the final surface treatment to all samples. The evaluation of the quality of the surface finishing was carried out on the above-mentioned, differently treated edges. The results strongly indicate the importance of the condition of the substrate surface and its influence on the quality of the final surface finish.
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