St. Petersburg scientists were able to create what was considered unrealistic a couple of decades ago: to make a group of environmentally friendly water-dispersion colors and metal primers, which exceed the number of properties of the alkyd coating system. Their temperature range is capable of maintaining from “60 to + 40 ° C” at the moment, none of the leaders of Russian paintwork can boast of similar abilities.
Water-dispersion discovery.
In the 90s, not quiet statements of ecologists in connection with harmful atmospheric emissions that appeared from the use of colorful substances (the basis of which were organic solvents) ceased to be called desertedly flagrant, finally they were heard. The Government of a large number of developed states prohibited the use of similar paints and varnishes (LKV), which led the leading world organizations to a serious occupation – the creation of environmentally friendly paint: powder substances containing a high dry residue (tixotropic), as well as water -dispersion colors, which were the most popular product. All this led the paint world in the coup of the water-dispersion type.
For example, in 1995. In the States, the production of environmentally friendly colors of LKV increased one and a half times, five years later safe environmental substances, according to America’s researchers, began to exceed 15 times. A similar case took place in large numbers in many industrialized states.
In the world designation, there is a certain troubles: for various manufacturers, water-dispersion colorful substances can have the name of water-based or binding degree acrylic, latex, polyvinyl acetate, etc. D. To give a variety of properties (atmospheric, thermal, shine, thixotropic, chemical resistance, etc.) manufacturers use a variety of impurities. However, the main components are mainly three: film -forming composition (binder), water solvent and pigment.
At first, water -soluble solutions actively began to use builders, for internal and external work on brick, concrete, gypsum, wooden and other surfaces. Due to the absence of organic type solvents in the composition and environmental purity, working with such substances has become a complex than with nitro-cellulum and alkyd colorful substances, and the main one is the presence of fire safety and the absence of any harm. Also, from the advantages of environmentally friendly colors, it can be noted that they are absent on the surface of a solid steam -permeable film. The part that the paint covers is “breathing”, which, as it turned out, is useful not for one state of a person, but also for the “health” of the construction foundation.