At the present time are very common all kinds of universal water-borne primer based on acrylic materials. Such compositions provide excellent adhesion to painted material, as well as fit application of latex, acrylic and alkyd paints. So they are suitable for priming the surfaces of concrete, plaster, gypsum board, wood, fiberglass and materials. Today, the production of primer compounds, as water-based and alkyd (GF-021 primer), takes into account the type of work surface: brick, concrete or plaster, plasterboard, wood, plaster walls or ceilings. Depending on the conditions operating surfaces, which use the soil and the type of enamel (eg, enamel PF-115), chosen method of finishing. For the initial surface preparation used primer improves the adhesion between the layers of finishing materials – such soils are called primer-primer. The more expensive coat, the more strictly they are distinguished by appointment, the better their quality and they are generally more environmentally friendly.
In the application of a comprehensive coverage of each paint layer is preferable to use a primer, for example between the wall and plaster, stucco and putty, putty and between enamel. Before choosing a primer is necessary to pay attention to the porosity of the surface and its moisture absorbing capacity. For low porous, dense grounds is better to use primer with excellent adhesion. Loose and porous surfaces only qualitatively stronger ground with the properties of deep penetration. Must keep in mind that in this case, primer application rate of increase. Universal primers for mineral surfaces are used for priming the average porosity of materials. Thus, the concrete walls are difficult to strike the first, an initial layer of plaster.
No primer is not necessary. For work in high humidity is required to use special formulations for priming. Here unpaved required to build on the painted surface moisture layer. Blocks of plaster before tiling reupload should definitely primed. The primer should be absorbed and create a protective film that prevents tile adhesive to lose moisture as dried glue becomes unstable and a tile with the passage of time is likely to fall off. When you create a comprehensive paint is wise to use primers and enamels the same manufacturer. This will get the best result. Every serious manufacturer launches its range of materials and ensures the compatibility of different products with their integrated use. For best results, the most important type and purpose of the primer, not the number of used product per unit area. And do not forget that good coverage can not be obtained without competent compliance with technical standards and regulations.