Painting is one of the universal ways to protect buildings and structures from atmospheric influences, such as the sun, wind, temperature changes, precipitation. The painted layer experiences enormous loads from the listed factors. To imagine the degree of impact of weather conditions, it is enough to recall the causes of the destruction of mountains and the formation of caves. This is evidenced by the fact that the sun is the cause of the swing of the Eiffel Tower ...
The choice of paint is a very important stage in the painting. Indeed, many factors depend on its quality. It is also important to remember that no matter what paint you choose, you will not get one hundred percent protection. And if the master says the opposite, then you better find another master. But still, the better the coating, the longer the painted item will last. Paint is best bought at a specialty store. Despite the higher price, you will insure yourself against a fake.
So, you are going to paint the house. What paint to choose? If your house is not wooden, then water dispersion paint is the best option. Its difference from traditional types is that the composition of the finishing material includes two immiscible elements: globules (the smallest colored particles) and an emulsifier (liquid in which the globules are dissolved). That is, in essence, water dispersion paint is an emulsion, the particles of which, after mixing, become suspended. Therefore, the paint must be shaken before use and stirred periodically during use. The principle of operation is that when applied to the surface, the emulsifier enters into a chemical reaction with air; as a result, the released water comes to the surface and evaporates; a transparent emulsifier film remains on the surface, in which the colored particles are evenly spaced. Depending on the color of the particles, a painted surface of the corresponding color is obtained.
Water dispersion paint is of two types:
1) Polyvinyl acetate - the most popular. In addition to the waterproofing properties, such a water dispersion paint has a fairly good adhesion to concrete and cement surfaces. You can cover it with a tree, but it is undesirable (why - see below).
2) Acrylate water-dispersion - this paint is characterized by high weather resistance. As a rule, it is used for painting building facades , as well as places with high humidity. Its use allows you to very high quality finish buildings. Not suitable for wooden surfaces.
Water dispersion, emulsion paint has the same purpose. It can cover concrete and cement surfaces. But it is better not to cover metal and wood with it. When painting wooden structures, yellow spots may appear - precisely because of the very good adhesion to the tree. On metal, water-dispersible paint, the price of which is quite low, keeps very poorly, peeling and peeling off in a short time.