| Abstract | The painter is more and more frequently confronted with concrete and cement mortar surfaces to be covered directly with paint products. This applies both to inside and outside work, and to on-site as well as prefabricated construction. These materials present problems to the painter by reason of their porosity, alkalinity, moisture content and surface state. Laboratories are particularily concerned with variations of moisture content and the danger thresholds, depending on the character of the paints. They study the possible effect of stripping products on the surface state and the adhesiveness of paints. By taking into account the specific properties of these materials and the laboratory results supplemented by on-site inspections, valid solutions to most of these problems are available to the painter by selection from the various commercial products available. |
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