Structural plaster for interior works: types, application technology, description and reviews

Structural plaster for interior works has been known for a very long time. As a material for the decoration of the walls, it was used several centuries ago. Classification of this type of coating is quite diverse. Such mixtures are used for leveling walls and ceilings indoors.

Considering the question of what structural plaster is, you should also consider the possible need for using finishing finishes by the type of wallpapering or staining. Different types of plasters can have an independent decorative value and do not require final finishing.

Classification of structural plaster by composition

On the market today, structural plaster is represented in a wide variety. The most popular are 4 classes, among them:

• Silicone;
• Mineral;
• Silicate;
• Polymeric.

Mineral still called lime-sand, and polymeric - acrylic. As the main substance in the mineral plaster is cement, this mixture has high steam throughput, as well as good water absorption. The mixture after drying is subjected to medium pollution. As a pigment, inorganic substances are used.

Plaster on a mineral base has a low elasticity, but is resistant to ultraviolet rays. It has an average microbiological resistance and a slight resistance to abrasion. Considering the advantages, you can take into account that the mineral structural plaster is resistant to the influence of atmospheric precipitation.

Description of acrylic, silicate and silicone plasters

Structural plaster for interior works can be acrylic, silicate and silicone. In the first species, acrylic resin acts as the main substance , in the second and third - liquid glass and silicone resin, respectively. As for the steam-passing ability, the acrylic plaster does not pass the steam well, but the other two are excellent.

Water absorption in acrylic plaster is low, in silicate - medium, in silicone - low. If you do not want to see pollution on the walls, then you should choose silicone plaster, it has a low susceptibility to contamination, as in silicate. But the acrylic is high. Pigments in the latter version may be inorganic and organic, as in the silicone variant. As for silicate plaster, the pigment will be inorganic. A high degree of elasticity has acrylic or silicone plaster, medium elasticity - in the silicate variety of this decorative material.

Reviews of the lime-sand plaster

Lime-sandy structural plaster for interior works is often prepared with the addition of gypsum. This species, according to customers, is the most environmentally friendly. For wear resistance, the layer will be inferior to competitors.

Buyers choose mineral plaster to finish walls and ceilings in the bathroom, because such a surface after drying is not afraid of moisture. Consumers also like the democratic value, because the components are based on a low price. This is why lime-sand plaster is the most common.

Reviews about polymer and silicone plaster

Polymer structural plaster for internal works has a high plasticity, which is very popular with customers. It is resistant to humidity and aggressive environments, durable and durable. But many consumers do not like the fact that polymer blends have limited vapor permeability. Alternatively, you can choose a silicone mixture that can be applied to old coatings.

Buyers note that they like this finish because of the resistance to sunlight. Among other things, the walls and ceiling will not attract dust and will exhibit self-cleaning qualities. This is explained by the fact that water and dirt collect in droplets, and then flow off the non-wettable surface, which is important for rooms with high pollution. The silicone plaster of consumers also attracts long life. It is produced in the form of convenient ready-made mixtures, due to this application does not involve efforts on the part of the master. However, silicone compounds are quite expensive, which sometimes limits their distribution.

Reviews of silicate structural plasters

Considering the overview of structural plaster for interior works, you can understand that the silicate variety is resistant to mold fungi and putrefactive formations. Consumers like that the dried layer shows water-repellent characteristics.

Among the advantages is the fire safety and a wide variety of shades and tones. Consumers emphasize that silicate mixes are phenomenal in terms of service life, because longevity sometimes reaches 60 years. However, the cost of this type of plaster is the most costly.

Varieties of structural plasters for decorative qualities

Structural plaster for internal works, whose types have been described above, are also classified according to their decorative properties. For example, on the market you can find mixtures with impregnations of large particles. When the trowel is applied, the elements leave an uneven trace. The most common type of such surface is "bark beetle", which simulates wood, spoiled by insects.

Textured plaster recreates a surface that mimics a natural stone. The surface turns out to be uneven, which is very demanded by designers. The most popular type of such coatings is "Graffito" or thin-layer printed concrete. As a result, it is possible to obtain a surface that transfers the form:

• Moire silk fabric;
• Porcelain stoneware;
• Velvet;
• Wood;
• Natural leather.

With the help of texture plaster you can hide wall defects, before the application it is not necessary to carry out preparatory work. The main difference is that such structural decorative plaster can be applied to any surface, namely: plastic, wood, brick and concrete.

Description of flock plaster and composition based on marble chips

Structural plaster in interior decoration is used today quite often. This should include flock plaster, which has in the composition of natural cellulose, mineral dyes and fillers, as well as silk fibers. In addition to the ability to create a highly artistic effect, the master will be able to form a breathable layer that perfectly insulates the room and allows it to retain heat.

A very strong structural coating can be achieved if plaster is applied on the basis of marble chips. The composition can be a marble or granite granulate. The dimensions of the elements can be different, depending on what the appearance changes. In the role of additional additives, quartz particles or additives are sometimes used, which make it possible to obtain a golden flicker effect. This coating is frost-resistant, not afraid of sunlight, does not burn out, perfectly resists mechanical damage.

This plaster in the interior allows you to replace the usual wallpaper, which is especially true for the owners, in whose house there are pets. Before application, the surface is primed, otherwise the substrate will shine through.

Application technology: preparation

Such a finishing material as structural plaster, application (the description of all the stages of the process you must study before starting work) requires preparation. The walls should be leveled, smooth, and then covered with a primer. It is better to use a mixture of deep penetration, but it is necessary to dry the wall well. Experts recommend using an acrylic primer. To give maximum strength to the substrate it is necessary to harden it using special compositions.

Methods of work

Structural plaster can be applied in several layers. A small portion of the mixture is collected on a spatula and evenly distributed over the trowel. After the tool is attached to the wall, to apply the composition at an angle of 30 °. Use for the leveling of traditional paint roller. Instead, a conventional sponge is sometimes used. On the surface in the end pass a spatula, so you can smooth out the sharp corners.

Structural plaster for interior works, the reviews you could read above, can take almost any form. To do this, it is recommended to use different tools. Among them, it should be noted:

• Notched trowel;
• Relief roller;
• brush;
• Simple trowel.

If you use a regular roller, then the surface you will give the finished pattern. You can find a roller with an ornament that will make the work easier. This will minimize the costs of the finishing material.

Cost

Structural plaster for domestic works, the price of which can be very different, was described above. Choosing stucco brand "Shagren", you have to pay 49 rubles. Per kilogram. The consumption of this material per 1 m ² is approximately 2.5 kg. Decorative plaster "Bark beetle" costs a little more expensive - 59 rubles. Per kilogram, and the consumption is 3.8 kg / m ² .