In addition, silicate and silicone facade has a high vapor permeability and strength films, self-cleaning ability due to low thermoplasticity and electrical charge. Scope of silicate paints based on liquid potash glass has some limitations. These paints can be used only for the walls, previously covered with similar materials. Leading manufacturers offer silicate facade systems, reinforced siloxanes (Sylitol, Caparol), which have a high resistance to weather and other vozdeystviyam.TabLITsA 1. Requirements for paints depending on the material type of the facade of the material properties of the material requirement to paint concrete, foam concrete, asbestos cement absorbs moisture vysokoschelochnoy, slabodyshaschy, is prone to biological impairment of low moisture permeability, the average water vapor permeability, high alkali resistance. Suitable pure acrylate paint, forming a thin and durable film that prevents corrosion of concrete. Brick, stone, plaster absorbs moisture, is prone to the appearance of mold and mildew High water vapor permeability and low moisture permeability. In this case, suitable silicate paint.
Tree Strongly absorbs moisture and is subject to biological impairment of high elasticity and water resistance, low flammability. Expert opinion Mitroshin Igor currently in the production of facade finishing widely used – and this is justified – the water-dispersion paints based on acrylic dispersions and stirolakrilovyh (tie). The short form will express their views on some problems and errors that occur when selecting facade paints and paint manufacturing operations. 1. Surface for different reasons in Russia adopted the practice of painting in the "fresh", uncured surfaces over time. "Fresh" The cement materials characterized by high alkalinity.
Therefore, facade, first of all, acrylic binder and pigments included in the composition of its prescription should have a high alkali resistance (or resistance to pH). Failure to comply with the rules and the high rate of production of plastering can cause the formation of "hair" and other fractures. Application of binary polymer renders, use of acrylic adhesives consisting of mixtures of plaster when applying the finish plaster layer can avoid this problem.