Dip your brush

Vadim Alexeev What paint works best for your home? In stores now represented by a huge number of paint formulations that differ in technological, operational and decorative properties. In addition, not least, for any work you want to use paint: inside or outside. Modern paints - it is a complex multicomponent structure. It includes the film former (a binder, by which on the surface to formed a colorful film), pigments, fillers, solvents and various additives - thickening agents and others as a binder of film-forming substances are commonly used alkyd resins (alkyd and oil paints) , aqueous dispersions of polymers: styrene-acrylate, butadiene-styrene, polyvinyl acetate (water dispersion), sodium silicate, or scientific, sodium silicate and potassium (silicate paints), silicone resin (silicone), linseed oil (based on them doing finger paints ) varnishes (enamel paint), etc. The colorful alternative to interior paints used in the interior must be especially environmentally friendly. After all, with their painted faces homeowner will have to deal with daily and hourly. Considered the most environmentally friendly water-dispersion paints (WEC). Connecting basis of such paints is not diluted with an organic solvent, unsafe, and water. It is water-dispersion trains experts advise to cover large areas - walls, floor, ceiling, walls, etc. Use alkyd and oil paints in the interior, too, is not forbidden, but in small amounts, say, to paint the window frames, metal pipes and radiators heating. Water-dispersion paints have a whole set of advantages. In particular, being deposited on the surface, these compounds are rapidly drying up - just an hour and a half (for comparison: oil and alkyd paints continue to spoil some day). Unusually wide range of applications VDC. They fit well on the pre-primed concrete, drywall, plaster, wood and even metal. It should be noted that the properties of water-dispersion paints and their prices depend largely on what polymers are used as a binder. Cheaper than most formulations based on polyvinyl acetate dispersion (or simply PVA). Such paints a good hold on the surface, almost no fading, but are afraid of water. Therefore, their application area is limited to dry rooms. Butadiene-styrene dispersions, in contrast, are distinguished water resistance. But they are less light resistance and eventually turn yellow. Golden mean in the range of water-dispersion paints are compositions based on acrylic dispersion. They possess a universal quality and high performance characteristics, but, of course, more expensive "brothers." All diluting substances used in the preparation of paints can be divided into solvents and thinners. The solvent dissolves the binder and simultaneously lowers the viscosity, ie, the fluidity of paint. Diluent only lowers the viscosity (which is thinner should be applied in a particular case is usually indicated on the container). At the beginning of this article, we mentioned that in the interior in reasonable amounts can be applied alkyd and oil paints (both are producing based on alkyd resins). Here we will not describe in detail the characteristics of these compounds - they are discussed below in the section on facade work. Reservation only, that the use of such paints indoors should take care of safety: the room, which made painting of various surfaces, it makes sense to isolate the time (it can be done, tightly closed doors and close up the cracks with rags). Increasingly popular today become Multicolor (mosaic) paints an aqueous dispersion of synthetic resin. Such compositions extraordinary technological, easy to use and give a wide color palette. Figuratively speaking, Multicolor coatings represent "the paint in the paint: the capsule of the same color" float "within the paint of another color. Due to the special structure of the components of these ingredients never mix. Color caps, inclusions can be quite original: golden, silver, pearl, etc., have been applied Multicolor paint using a special device - the gun. Under high pressure, which is created inside the spray-gun, capsules of paint sprayed on the wall, creating intricate patterns. The best option for the wooden facade And now I come to the front. Paints for facade work is usually divided into compositions for wood and stone surfaces. Let's consider them separately. Traditionally used for staining wood oil or alkyd paint. They have a high impregnating ability and penetrate deep into the wood dries forming a dense and uniform coating, effectively counteracting penetration of moisture. Alkyd paints can be painted and metal. Particularly popular now rust compounds that are used without pre-treatment of metal surfaces against corrosion. By the way, on the market today meet and gelatinous alkyd paint intended for painting vertical surfaces. They do not form on the wall stains even when applied thickly. But there's compositions based on alkyd resins and disadvantages. In particular, due to interaction with air paint curing paint film of such material does not stop. As a result, the paint quickly loses its elasticity (about a year), which usually leads to cracking of the paint film. In addition, alkyd binder is subject to destruction by UV radiation. Under its influence the paint fades, the deposition of the whitish spots. Such defects are deprived of water-based paint acrylate dispersions. These materials, as already mentioned, the renowned adaptability of application, quick drying and environmental cleanliness. But with regard to facade work they have another advantage - a high resistance to weathering and the ability for as long as to maintain a high aesthetic qualities. For modern acrylic materials to repair the life of repainting may be 15 years or more. It should be noted that the water vapor permeability of acrylic paints is higher than alkyd. This allows us to effectively regulate the humidity balance timber. In addition, the acrylate compositions practically not affected by the damaging effects of solar radiation and are capable of many years to preserve rich intense color. At the same time, we should remember that acrylic materials are poorly absorbed. Because of this, applied to the wood coating may peel off, especially on the sunny side. To factor out weaknesses of alkyd and acrylic materials, the leading European manufacturers of paints and varnishes have developed a combined scheme of coloring wood. Work should begin with a preliminary surface treatment compositions which provide deep antiseptic impregnation of wood (preferably alkyd binder in a solvent or in aqueous solution). Further, the intermediate primer should be used on alkyd binder, which penetrates into the pores and fill the cracks of wood. And only after that is recommended to apply one or two layers of weather-acrylate materials that provide long-term preservation of decorative and performance properties of the coating. Wood, protects! Before applying the paint composition on a wooden surface needs to be dry, and remove dirt and traces of the destructive bacteria. Practice shows that the best results when painting wood immediately after machining - wood with open pores. Painted wood surfaces that are more than half were exposed to rainfall and ultraviolet radiation without stripping is not recommended. Otherwise, the service life of paint coatings will not exceed one season. Wood - material "alive", with its unique natural texture. And many consumers have asked a reasonable question: "How will this or that paint on the appearance of wood, the extent to which changes its decorative properties?" It should be noted that in addition to color and gloss paint composition, the buyer can choose any translucent material (preserving the texture wood after painting), or completely Covering. But note: preserving the texture image materials create a thin film on the surface, weakly stable to UV radiation. As a result, after 2-5 years is required repainting. Covering paint usually form thick coating, so are considerably longer: 8-15 years. Painting on stone under stone facades, of course, be understood, not granite or marble walls, but mostly concrete or brick surface, decorated with different types of plaster or lined with sandstone. Almost all mechanisms of destruction of the stone associated with the physical, chemical, biological and mechanical effects, one way or another, based on the action of moisture. When water gets into the stone on the border between different building materials, and sometimes even between the particles of the same material as causing severe stress. As a result, the walls sometimes cracks appear. Another "damning" for the stone factor - the impact of mineral salts. These compounds can penetrate into the material of walls, the capillaries which rises the moisture from the soil, leaching of cement stone. In connection with the above coatings for stone surfaces should be fully flowing water vapor, so that deeper layers do not remove water. The binder in paint for stone surfaces can be both organic and inorganic origin. Typical high-strength organic binders are styrene acrylic resin dissolved in white spirit, and water-soluble acrylate and silicone resins. The best permeability to water vapor have inorganic products that contain very little organic binder or even deprived of it. In inorganic paints and coatings is the main binder of potassium silicate (silicate paints). In general, "inorganic" paint stick on the stone facade of the longer and better colors on the organic binder. But the same silicate paints do not provide bright vivid colors. So fans cheerful facade usually has to sacrifice durability of the coating. Surface preparation for painting the stone facade is reminiscent of the work carried out before staining wood. So, you must first zashpatlevat chips, cracks, and notches. Then apply a layer of primer. It will protect the wall from the environment before applying the paint material reduce paint consumption and improve its grip. So, we gave general advice on choice and use of paints for interior and exterior work. Hopefully they will help you to use modern paints effectively with skill. But do not rely solely on their own knowledge. Do not hesitate to once again ask the seller for what suits one or another color, what are its properties, advantages and disadvantages. Because the market paints now very rich. A more diverse range of products, so, as we know, it's easier to buy "something wrong."