How to paint the facade

The facade is designed to not only serve as a "person" at home, but and provide protection from the weather. Very often the facade bears the traces of weathering (variable temperature, variable and high humidity, ultraviolet radiation, wind), biological agents (molds, fungi), industrial and environmental pollution of the environment. peeling or discolored, spotty or even no decorated facades - a rather sad phenomenon. That is why the color of the facade is for many people, the real problem. How to paint the facade so that it looks nice and does not collapse over time? First step - select the type of paint. All paint materials for facades, are protective and decorative coatings, ie they must not only decorate the building but also reduce the level of destroying its environmental influence. Characteristics of the selected paint materials shall conform to the conditions which will be operated cover. For the front works best option is a water-dispersion acrylic materials. Water-dispersion materials are produced mainly based on three types of variances: - polyvinyl acetate (PVA) - butadiene (BS) - acrylic (AA). All three have their advantages and disadvantages. Thus, the dispersion of PVA adhesives are indispensable in the tree, but the paints based on them are obtained nevodostoykie and therefore have a very low scope, despite the fact that they are inexpensive. True, there are various waterproof PVA copolymers, but also in paints they are inferior to acrylic dispersions. butadiene dispersion is good in adhesives that require water resistance, but have a limited lightfastness, which makes their use undesirable in materials intended for outdoor use. paints of this type of dispersions obtained cheap, but use them only for decorative work within the premises. Acrylic dispersion is more expensive than the two above, but they are the most versatile. no coincidence that, based on acrylic dispersions manufactured more than 70% of all the colors produced in Europe. It should be noted that the acrylic water-dispersion paints, not only won the construction market in Europe, but and invade more sophisticated industries such as automobile and shipbuilding. What are the advantages of acrylic materials in comparison with oil and alkyd paints? First, longevity. Acrylic paint on the facade are 8-12 years, in some cases - up to 30 years and oil - 1,5-3 years, alkyd - 3-5 years old. Secondly, the environmental safety. Acrylic paints do not emit harmful substances, especially solvents, as the substrate, and during the operation. Third, good hygienic properties. Paints form a "breathable" coating, permeable to vapor, but impervious to liquids, which makes it easy to clean surface in case of contamination. Fourth, fire and explosion as during storage and application, and during the operation of coatings. Fifth, simplicity and usability. Paints dry for 30-40 minutes at room temperature and normal humidity. The second step - defining the type of surface. paint and surface should approach each other, then their "life together" will be long and beautiful . For the mineral surfaces such as concrete, not all water-based paints are acceptable, as they "pull" on the surface of alkali, obesschelachivaya top layer base. It promotes the destruction of metal fittings, and can lead to rapid fading of the coating itself. Therefore, in cases where the work account with a new, plastered with concrete, use water-dispersed acrylic dispersions with a high level of resistance to alkalis. The pH of such dyes must not exceed a pH of concrete. Use of alkali-resistant acrylic coating will protect your front against fading and staining, and concrete base - from destruction. mineral surfaces also tend to gain moisture when the temperature is lowered, and an increase in - give it away as a vapor. Therefore, facade paints to such surfaces should have a structure that does not pass water in the condensed phase, but releasing it in a gas (vapor) form, or pairs of tear film of paint. Paints, do not give the facade of the building to breathe, would provoke the accumulation of moisture inside, which lead to the destruction of the mineral foundation. After determining the type of surface is very important to the quality of surface preparation for coating. If we talk about the life of the coating, the quality of surface preparation is the most important factor (even more important than the quality of the paint material). The purpose of surface preparation is its strengthening, improving the appearance and increase adhesion to the paint. Particular attention should be paid to surface preparation, if it struck a mold. Mould - Education brown, black or gray fungus spots on the coating surface. The fungus grows on the concrete base, the film paint or other organic materials. The solution is achieved by using special anti-fungal paints - impregnations, primers, etc. "What is the primer, so is coverage "- this old malyarskaya true today more relevant than ever it was. It is also important to use acrylic paints that contain antibacterial agents. The modern market paints striking in its variety. To select the most acceptable variant color of the facade, which satisfies all conditions of operation of the facility, must take into account the above factors. Thus, the color of the facade requires greater attention and thoughtful approach. All process steps should be taken into account and carefully observed. Only in this case business success is guaranteed.