The rules of painting metal

More recently, the idea of ??painted metal surfaces with water-dispersion paints seemed utopian. The most common of the metals - iron is very rapidly oxidized in the presence of water, and then water-emulsion paint. Conventional water-dispersion paints, of course, are not suitable for these purposes. In this case, need specialized materials that form a dense protective coating, have corrosion resistance and have good adhesion to the metal. All of these problems, scientists were able to solve at once. Now in Europe it came to that water-dispersion paints were used in difficult areas such as automobile and shipbuilding. We shall not running too so far, and consider the possibility of painting the metal surfaces in the building. Let's start with the most complex - of the roof. Metal roofs can be divided into three groups according to the materials used. The first - from the black iron. Second - galvanized iron. The third - non-ferrous metals: aluminum, its alloys, copper, etc. The third group is extremely rare because of high cost, and therefore consider it not worth it. The first and second - much more accessible and widespread, although much more expensive than slate. With a black iron all clear, it must necessarily paint. Typically, for these purposes in Russia in the old used oil and alkyd paints. Those who love often paint may do so in the future. For the "lazy" may be advised acrylic aqueous dispersion enamel to the roof with an anticorrosive effect. Such coverage will cost you a bit more expensive than oil or alkyd paint, but will last much longer. In addition to being more durable acrylic coating in atmospheric conditions, it still has a higher and constant elasticity of aging. In the case of metals it is very important because they have large linear expansion due to temperature fluctuations. In oil and alkyd paints elasticity is less than acrylic, but they still lose it in the process of aging. As a result, at some point in this type of ink just begins to flake off from the metal surface. Painting galvanized roof - the operation is ambiguous. Zinc coating protects the iron well for 10-15 years. That is after this period it is necessary to paint. However, and a new galvanized roof paint better. This will prolong its life and give a more pleasing appearance. In galvanized iron more passive surface than black. Therefore, in this case requires a special material with greater adhesion and elasticity than the version with black iron. Oil and alkyd paints generally not suited for this task. On galvanized roof, they will serve no more than one season, and special acrylic enamel will delight you for years. If a sheet of iron in a certain way progofrirovat and then paint the rust acrylic enamel, you'll get an analog of metal, but several times cheaper. One company has already benefited from our recommendations, and successfully sells painted galvanized gofrolisty, creating competition for foreign analogues. To tell the truth, creating a water-dispersion paints for metals, we did not expect to be as wide a possible range of application. For example, they were simply not replaceable by staining various explosive and inflammable objects. All paint solvents are well lit, and pairs of these and more explosive. When painted with an ordinary object - it's so bad, and if the storage facility or storage facility, there is no place for jokes. The slightest spark, not to mention the butt, and with a team of malaria can be as simple as, indeed, with the object. Water-dispersed materials are absolutely safe in this regard. Have successful experience of painting a variety of metal structures and buildings: sheds, garages, fences, gates and even trucks and rail cars. A small amount of rust is not a hindrance. Anticorrosive additives not only passivate its further spread, but also convert already formed. If the metal surface has a strong defeat the rust, then we can apply a special anti-corrosive acrylic primer with rust converter and then to produce the painting. And it's fast, odorless, and with maximum comfort. So, when you will need to paint the metal surface, not in a hurry to wear a gas mask or cotton-gauze bandage, when working with acrylic water-dispersion materials they do not need you.