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What is better to choose for finishing work: plaster or putty, and what type?

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Both the putty and plaster are widely used in construction and used for surface finishing. Although there are many similarities between them, but the problems solved with their help still differ, as do their physical properties.

Putty

It is a plastic mass manufactured at industrial enterprises and sold either as dry mixes or as ready-to-use ones. Compared with plaster, putty, neither starting, nor finishing do not prepare themselves: on the one hand, it is inexpedient, and on the other, it is almost impossible. Their astringent ingredients are:

  • cement;
  • polymeric materials;
  • gypsum.


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Plaster

This mortar can be used to level the surface with a level difference up to 15 centimeters! In addition, the application of plaster is sometimes used to improve the thermal insulation of the structure, as well as, to a certain extent, its moisture resistance.

Plastering compositions are made on various bases:

  • cement;
  • calcareous;
  • plaster;
  • gypsum cement.

Both plaster and putty are applied in several layers, however, at plastering, a completely different technology is used, consisting of these three different stages of applying building material, such as:

  1. sprinkling (a fixing layer is created, hiding surface defects and ensuring a strong adhesion of subsequent layers with it);
  2. middle layer (or priming, its task is to level the level and provide the required coating thickness);
  3. nakryvka (is the top finishing, that is, the last layer of plaster).

Plaster and putty are also distinguished by the fact that:

  • the time of complete drying during the processing of surfaces using the first technology, as a rule, exceeds 48 hours, while when puttying, sanding can be started after 24 hours;
  • Plastered surfaces are generally not treated with abrasives.

In addition to the usual construction plasters that have such a sand component as quartz sand, there are more unusual types of it. For example, today, designers can work with naturally white, with high diffusion properties, universal plasters with marble granules. And they are applicable both for interior work and for facade work. With their help, noble surfaces can be created, both of walls and ceilings, resembling the appearance of marble, which are easy to process and possess anti-bacterial properties.

Most often in the finishing works associated with the preparation of the walls for painting or pasting them with wallpaper, apply cement putty. It is also used for embedding cracks, eliminating small differences in surface irregularities. The use of putty is possible not only in dry, but also in wet areas, as well as when performing facade work. In the latter case, the use of special cement facade fillers is recommended.

Cement putty may, taking into account the binders contained in it, be considered lime and gypsum, and be of a different type, for example, it may be called white cement putty if it is made using white cement.

In addition, cement-based putties are divided into two main categories of this building material, as cement finishing putty and starting cement putty.

As for the starting cement putty, it is used in the initial stages of finishing work in order to cover holes or large cracks with its application. In this case, putty need to be quite a thick layer, but not exceeding one and a half centimeters. The value of the grit of the sand component (in the form of quartz sand) of such putty is usually not more than 0.8 millimeter. At the same time, as a rule, the surface treated with the starting putty looks even, but slightly rough due to the presence of sandy inclusions.

Putty finishing is applied at the final (actually the last) stage of finishing works. The size of the sand grains that are part of it should not exceed 0.2 millimeter, since only in this case can a sufficiently smooth surface be obtained. When applying the cement putty finishing type, it is impossible to mask well the irregularities, cracks, cracks.


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Putty, created on the basis of conventional cement, has, as a rule, gray color, so in cases where it is unacceptable, a finishing white putty containing white cement is used, which provides this building material when using it, for example, in finishing facade works. white color required.

In addition to the above-mentioned white putty, there are also more exotic high-quality types of putty, for example, lime putty on a lime base with marble flour, additionally added to them. With their help, high-quality decorative surfaces, resembling marble and containing iridescent shiny elements, can be created. Such a lime putty, when applied, is often also called Venetian plaster.

Cement putty for interior work, as well as for the facade, is available in two versions.


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Liquid putty

Plastic buckets are used for its packaging, after opening of which, the putty mixture can be immediately used for its intended purpose. Its disadvantages compared with dry putty are:

  • shorter shelf life for use;
  • faster freezing;
  • large shrinkage after final drying;
  • the appearance of cracks when applying a thick layer after some time after it has dried;
  • higher cost of such putty.

Ready-to-use cement putty is advisable to use for small amounts of work, including when there are small in length and shallow cracks.


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Trying to decide which cement putty to give preference to lime or not, when starting repairs in the apartment or setting up finishing the facade of your house, always consider, firstly, the conditions in which the treated surface is used, and secondly, how thick a layer you plan to apply. The quality of the result of the work, and how long it will remain unchanged will largely depend on the correctness of your choice. Examine your problem thoroughly to determine exactly whether you need a putty in your case or it will be better to start plastering.

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