In recent years the Russian market of building materials has increased sharply for sale piece, panels and laminated flooring. There was a lot of companies that sell flooring, parquet, and service providers to conduct parquet works. Particularly increased range of flooring, as manufactured in Russia (including imported equipment), and imported, especially from exotic wood species. It should be noted that the laying of flooring, especially artistic, requires a set of operations, of which the ultimate is the varnishing. Lucky for the protection of surface flooring (parquet lacquers) are the most widely used in the practice of construction works. In recent years the Russian market of building materials has increased sharply for sale piece, panels and laminated flooring. There was a lot of companies that sell flooring, parquet, and service providers to conduct parquet works. Particularly increased range of flooring, as manufactured in Russia (including imported equipment), and imported, especially from exotic wood species. It should be noted that the laying of flooring, especially artistic, requires a set of operations, of which the ultimate is the varnishing. Lucky for the protection of surface flooring (parquet lacquers) are the most widely used in the practice of construction works. Until relatively recently, was considered as fashionable oak flooring, regularly rub paste. But with the advent of modern matte and semi-gloss varnish, preserving the parquet design, as well as reliable, waterproof and durable polyurethane varnish, floor varnish coating applied almost everywhere. Simultaneously, with the advent of the market a wide range of imported parquet varnishes soared requirements to the quality of domestic products of similar purpose. "Gak, over the years range produced by the domestic industry parquet varnishes almost exhaustive two brands-alkyd varnish PF-231 and urea with the addition of alkyd resin varnish MCH-0163 acid catalysed. Despite the fact that at the present time these lakes hold a dominant position in the Russian market in recent years began to be produced and appear in the stores a more contemporary range of parquet varnishes - epoksidnoalkidnyh, uretanovoalkidnyh, water acrylic and akriluretanovyh Finally, one-and two-component polyurethane. We consider this offer in more detail: Alkyd Varnish GF-231 is the most old at the time of development and widespread among produced in Russia parquet lacquers. Its advantages are ease of application and good appearance of the film. But it is equally obvious its shortcomings: lack of toughness, abrasion resistance and water resistance of the film, leading ultimately to a lack of durability coatings no more than is usually two to three years. Lac MCH-0163 (based on a mixture of urea and alkyd resins with the addition of an acid hardener - dvuhupakovochny) certainly has a higher performance. hardness, water resistance, abrasion lacquer coating with the lacquer exceeds the above-mentioned alkyd. However, the drawback of this varnish are poor adaptability in use (a sharp smell, it's hard to get rid of bubbles during application), darkening of the film under direct sunlight, lack of elasticity of the film. Attempts to improve this lacquer made by the firm "Latbio, Riga led to the development of Luck "Moscow", produced by LLC "Lakme-Color." important advantage of this lacquer is used as a hardener solution of p-toluenesulfonic acid instead of sulfuric acid, as well as the presence of two released versions - glossy and matte. Comparative tests of varnish " Moscow "with the varnish," Shine ", produced by" Odilak "according to a recipe and technology, close to the production of varnish" Ideal "(company Helios, Slovenia), showed the identity of both of these paints on most indicators, and an advantage of varnish" Moscow "in Film resistance to abrasion. Unfortunately, all of these acid catalysed lacquers is inherent, a serious drawback: in the process of film formation when applied liberates toxic formaldehyde, which has also mutagenic. For this reason, probably, the application of these varnishes is limited: according to our information, the West to be released only in Poland and Slovenia. Attempts to improve the quality of the parquet alkyd varnish led to a one-component lacquer Alkidnoepoksidnogo EP-2146, which as a modifying agent used epoxy resin. This paint is available at the Yaroslavl and Kotovsky paint factories, coating based on it is different higher, compared with alkyd, performance: hardness, abrasion, water-resistant. Abroad lacquers of this type are not made. Much more common in world practice, the paint was a modification of alkyd polyurethane binders, carried out during the synthesis of so-called uralkidov. uralkidov use as film-forming formulations in parquet varnishes not only accelerates the process of drying, but also leads to significant improvement in the aforementioned performance. Uralkidnye varnishes, perhaps, the most frequently used in the West to protect the flooring and the label in most cases they are referred to as polyurethane varnish. Their major advantage is a relatively low price, slightly differs from the price of alkyd paints. It should be noted, however, that, according to data cited in the article, Mr. Boris Kudryavtsev (magazine Coating materials and their applications ", 2000, N5, C.7 -11), the domestic uralkidny lacquer AC-271 "polyurethane" production Circassian HPO inferior to foreign analogues by the drying time, color, and abrasion, the author explains the lack of otrabotannostyu uralkida synthesis process and the lack of polish in the recipe so-called "slip additives." The most high-performance characteristics, primarily for water resistance and abrasion-resistant coatings to have a polyurethane varnish - a one-component, curable by moisture in the air and two-component (first component-hydroxy polyester, the second - the isocyanate prepolymer), produced by many foreign firms. in our country we were able to identify only two firms producing such coatings: one in Moscow (000 "poly"), which produces hardwood polyurethane varnishes under the names "Gala" and "Sport" on the imported raw material, the other in Dzerzhinsk, Nizhny Novgorod region. (000 "Ekopol" ), which produces two-component polyurethane varnish UR-5-66 on the basis of domestic raw materials. However, both firms produce hardwood polyurethane varnish only in small quantities and can not provide the needs of the market. It should be noted that back in the sixties in the laboratory of AA Blagonravova State Research and Design Institute of the paint industry GIPI LPC has been designed and produced in pilot-industrial scale of a magnificent one-part polyurethane varnish parquet SD-19, received the highest scores of consumers. Alas, unfortunately, at present, this varnish is not available. Modern trend in the coatings industry - an exception from the LMC volatile and toxic solvents are not spared and the scope of parquet lacquers. On the shelves of Moscow stores can often find imported water-soluble parquet lacquers and acrylic akriluretanovoy basis. Their advantage, in addition to environmental and fire safety, is a light color - they are virtually colorless and do not change the color of flooring and disadvantage - quite a complex technology applications: in most cases they require special primers and applied a large number of layers than all of the above parquet lacquers. Besides hardwood water lakes are the most expensive of all the listed types of paints. Given the advantages and prospects of water paints, some domestic firms have begun, though still timid, to develop their production. The most affordable are the Alkyd Coatings (PF-231) and acid catalysed lacquers (MCH-0163), but the modification of epoxy varnish ( VC-2146) and urethane (AU-271) resin slightly increases their cost, with significant improvement in quality. It is easy to see also that the same products from different companies, retailers and dealers of large plants significantly, sometimes almost in 2 times but different price. This should be considered when buying a parquet varnishes, and other marketing search. The most expensive, though, and provide higher durability in the application are polyurethane lacquers and varnishes, some types of water. I would like to stress that Russian producers have all the potential for all types of parquet lacquers on modern technical level. Moreover, comparative trials of varnishes such firms as "Lakme-Color" and "Lakra-synthesis" have shown that the most important indicator-Resistance to abrasion lacquer coating of these firms exceed the corresponding foreign counterparts (eg, the Finnish company Tikkurila), while being significantly cheaper. However, the products of these firms is available in a limited tonnage and does not determine the weather in the capital market. In addition, must take into account the fact that the products of foreign firms tend to have more comfortable and beautifully designed packaging and labels. We have to be also a characteristic stereotype: "overseas is always better." Therefore, most consumers who want matte and semi parquet, bought for critical operations and maintenance of elite expensive foreign-made lakes. Analyzing data prices for some imported species parquet varnishes, it is easy to see that the price level of products of foreign firms are 2-4 times more expensive paints Russian producers, although there is significant variation in prices - from 3,0 to 19,8 cu . for 1 liter of varnish. In general, the observed marked above the general dependence of price and quality of lacquer: the cheapest and most common are the Alkyd and alkidnouretanovye varnishes, and the most expensive - urethane, acrylic and water and akriluretanovye. In our opinion, the best compromise between a relatively low price and provide good quality paints such firms as "Petri Paint", the U.S., "Amsterdam Color Works", the U.S., "Polifarb", Poland, "Meffert AG", Germany, "Tikkurila", Finland (the latter - the correct choice of the manufacturer and dealer). When working but varnishing parquet important are the thickness of the coating, the amount of the deposited layers of lacquer and the associated costs of lacquer on the square. meter of surface. It is impossible not to note the fact that this most instructions for applying parquet varnishes, in particular , foreign, overspray (usually 80-90 g / sq m) in practice is greatly undervalued. The fact is that called overspray is usually given by the well-primed surface in a single-layer coating. In the real world, when paint is applied in most cases of treated and ottsiklevannoy surface flooring, it is necessary to apply at least 2-3 layers of lacquer, with parquet, made of soft wood (pine, beech), overspray on the first layer usually increases due to absorption of lacquer surface flooring. Therefore, the actual consumption of parquet lacquer when applied to nezagruntovannuyu surface depends on the type of surface preparation and flooring and is usually 200-300 g / m? summary, it should be noted that the correct choice of parquet lacquer depends mainly on the purpose of coverage and financial capabilities of the customer . • When carrying out repair and construction works in a residential area we can recommend the use of alkyd paints Tina PF-231 or, in case the claims of increased longevity - two-component acid catalysed lacquer (such as MCH-0163). In the latter case, however, we must reckon with toxicity of the paint when applied, using the prescribed safety precautions (respirators, masks, etc.). • To carry out works in public buildings, offices, administrative offices and other public places should be preferred use of domestic and imported uralkidnyh varnishes. • In the case of parquet in elite houses, theaters, museums, concert halls, the coating but the parquet floor of the rare species of wood, decorative parquet appropriate to recommend the use of urethane and acrylic or water akriluretanovyh varnishes, and it is best to use the products of such famous companies as "Vona "Sweden," Beckers ", Sweden, ICI, England," Lakufa ", Germany," Kiilto ", Finland, etc. It should be emphasized here that the use of aqueous varnishes ensures no smell of solvents at drawing and color retention of the tree , while the remaining varnish give the surface a slightly yellowish or golden tinge. In conclusion, it should be noted that the mere use of high-quality and expensive varnish does not guarantee a perfect surface quality and durability of coatings during the operation. Paramount importance to observe the correct technology of surface preparation and coating of varnish: alignment and cleaning the grounds gluing the parquet to the ground, careful sanding and polishing of parquet, the complete removal of dirt and dust, causing the primer layer and then to the top finishing layers, under optimal temperature and humidity regime. Should emphasize the need for thorough mixing before application of varnish, which is especially important when using matte and semi-gloss paints, contain matting additives, as well as the requirement to bring the paint viscosity, which depends both on the type of varnish, and the instrument for the application (brushes, rollers, brushes, special applicators, etc.). The easiest way to work with alkyd varnishes, while other types of coatings require some experience and skill. The new paints, especially imported, it should adapt himself and to study their characteristics. It's best known experts in laying the parquet. Therefore we give a purely practical advice: buy paints from companies that sell flooring, and use the expertise of these firms for laying and varnished hardwood floor. Large firms that sell flooring, such as "Vudeks", "Bert," "House of the parquet," "Bark-M Center parquet, Trading House" Marcel "Trading House" Fagot "," Freeze + M "as a rule are specialists in spray paints and have the ability to purchase a variety of parquet lacquers and other auxiliary materials. In any case, they may give customers professional advice on the purchase of paints and work with them. Source: Portal Know-House.ru
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