The durability and aesthetics of the wall covering directly depends on the selected materials, their types and quality. The ideal result is possible only if the basis for decorative decoration is chosen competently. Putty - pasty material that is applied to concrete, blocks, plasterboard, etc. Before the finishing coating to perform important functions (elimination of defects, alignment of the coating). Based on this, we can conclude: it is impossible to buy the first putty putty. First you need to understand the types and functional purposes.
1
Previously decide: dry putty to you is more impressed, or still ready for use. The first has a smaller cost, while suitable for all types of work. While ready is much more delicate and can be useful not in all cases (almost unsuitable for alignment of the walls). But the shelf life of such material is practically not limited. Even if the Bank is not used at a time, it can be tightly closed with a lid and leave for later without prejudice to quality.
2
Based on the type of binder, it is possible to distinguish the following three types of putty: gypsum, cement and polymer. The choice of one of them depends on the room in which repair work is carried out, and on the financial capabilities of the owners. So, cement putty is good for use in rooms with high humidity. When applied to the wall gives a small shrinkage, therefore it is worth imposing it in several layers. Gypsum, unlike the first, is absolutely not suitable for wet room or facade. Such material poorly tolerates the temperature differences and moisture, but perfectly copes with the removal of huge cracks and recesses. The polymer is the most expensive and has the best quality.
3
The building materials market is rapidly expanding, so today you can note a few more types of putty. With the basis of PVA - perfectly aligns, prevents the occurrence of mold and is easily polished. Oil - durable, moisture resistant, but has a long period of drying. Suitable for processing windowsill, doors, floors. Acrylic facade - the optimal choice for outdoor robot: not afraid of temperature drops and atmospheric precipitation, it does not crack.
4
An important criterion for choosing is the purpose of the material. There is a putty of the first layer, the second, specialized and universal. For the main alignment of the wall, a mixture with high adhesion, which has high durability and durability, that is, the wrath of the first layer. By purchasing such, pay attention to the composition, characteristics and method of operation. She should not be peculiar to shrinkage, and when using some new species, there is even no need to apply the reinforcing mesh.
5
The wrath of the second layer is selected depending on the type of finishing coating, as it is applied immediately before it. The optimal sample contains the fraction of the filler about 100 microns. The surface covered with such material will be smooth and smooth, which is important when finishing the walls of paint. If you planned glued wallpaper, in the second layer putty, there is no need for nothing, it will only be enough first - leveling.
6
Specialized putty are taken to buy only in specific cases for certain tasks. As a rule, the manufacturer itself indicates a package or in the instructions, for which purposes it is worth using this type: for sealing seams of plaster panels, for urgent repair, for "breathable cracks", etc. They are not as popular as basic, but in certain situations without specialized putty do not do.
7
The universal mixture appeared relatively recently and immediately gained enormous popularity. It would seem that one view of all occasions, calmly replace both specialized, and for the first layer, and for the second. In fact, universality was only a thoughtful advertising move, since this type of putty does not cope with all the assigned functions.
Summarizing, we can say only disassembled on the shelves all the factors, both positive and negative aspects and conditions of application of putty, it can be really the right choice.
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