Surfaces that will be coated with epoxy paints and systems (Epoxol®, Neopox®) on floors and walls of factories, workshops, department stores, warehouses, garages, repair shops, slaughterhouses, food areas, hospitals, etc. Suitable for stabilizing old and new concrete surfaces as a final coating varnish with high chemical and mechanical resistance. Also suitable for improving the adhesion of sealing materials (e.g. Epoxol® Putty) on construction surfaces.