Acrylic plaster is an ideal choice for those who want to save money on finishing and facade insulation. These mixtures are made on the basis of acrylic resins, which allows to obtain a strong and durable coating. The warranty period declared by the manufacturers is at least 15 years. But in order to achieve such indicators, it is necessary to choose and apply the finishing composition correctly.
Acrylic facade plaster
Acrylic plaster is a ready-to-use water-dispersion mixture.
This material contains about 10 components, the main of which is acrylic resin. It is she who provides (after its hardening) the strength of the mixture applied to the walls.
The market of finishing materials pleases with the abundance and variety of plaster mixes. Acrylic stands out from the total mass in that it has several significant advantages:
When choosing a composition for facade finishing, it should be understood that there are no universal solutions.
The brand and manufacturer of the mixture are chosen depending on the operating conditions of the building and the tasks that the finishing material must solve in a particular case. Thanks to a wide range of acrylic mixtures, you can choose a composition for any conditions:
Some types and characteristics of plasters
Acrylic plaster is highly impact-resistant and has a dust-repelling property, which allows the use of this finishing material in industrial areas with a fairly high level of air pollution. A distinctive feature of acrylic surfaces is that they are easy to clean with a water jet from a hose. Therefore, facade maintenance is quite simple.
Technical characteristics of plaster mixtures based on acrylic resins
|Density||Operating temperature||Drying period||Consumption for decorative mixtures||Shelf life|
|1.70-1.80 g / cm3||From + 5 ° C||Not more than 24 hours at + 20 ° C and relative humidity air no more than 65%|| For compositions with grain 1-1, mm - 2.0 -3 kg / m2; |
For compositions with grain 1.5-3 mm - 2.
9-4 kg / m2
|At least 2 years at a temperature of + 5 ° C|
One cannot but note such an advantage of acrylic plaster as its elasticity.Thanks to this property, the composition can be easily applied to any surface: wood, brick and stone, foam, porous materials (gas block and foam block), fibrous materials (mineral wool slabs), OSB panels. Among the plaster mixes, there are two types of mixtures:
Decorative acrylic plaster "bark beetle"
Acrylic plaster combines all the advantages of the listed types of mixtures. Thanks to its constituent resins, it provides durable protection to the supporting base.
In combination with fiberglass mesh, it is used to strengthen walls and other surfaces. The decorative properties of the plaster are provided by the various fillers included in its composition.
Acrylic plaster over the reinforcement mesh
The same plaster mix can be marketed under different names. The name of the composition depends on the manufacturer. As a rule, all companies for the manufacture of finishing mixtures give their products a name that will be a distinctive feature of this product, its brand.
This name is often the same as the manufacturer's name. For example, the company "Ceresit" produces a wide range of building mixtures, including compositions based on acrylic.
Acrylic decorative plaster Ceresit CT 77
Choose your color of mosaic plaster from the collection and enjoy the extraordinary view of the facade of the house
The following brands of acrylic plasters are best known:
Thin-layer acrylic plaster
Decorative acrylic plaster Weber-Vetonit
BAUMIT. Acrylic plasters
Acrylic plaster Farbe Lamb
The main classification of acrylic plasterers is carried out according to two parameters:
The first differ from the second in the degree of moisture and frost resistance, the presence of special additives that enhance the protective properties of the finishing material. Acrylic plasters for facade work are widely used in all climatic zones. There are mixtures that can be used with equal success for indoor and outdoor work. For example, Weber-Vetonit, "Pas acrylate" line.
It consists of three types of acrylic plasters: "Fur coat 1 mm", "Fur coat 2 mm", "Bark beetle".
Weber. pas akrylat
Mixes of any kind are ready for use immediately after purchase, but if necessary, you can tint the composition and add components that prevent the development of fungus and mold. To obtain the desired color shade, water-soluble dyes are used.
Tinting decorative plaster
The main problem during application acrylic plaster is that it dries pretty quickly.
Therefore, you need to work quickly and efficiently. Experts recommend a little practice in applying acrylic mixes before proceeding with the main volume of finishing work.
When applying the pigment, it must be borne in mind that the acrylic plaster mixture after drying loses its color saturation, like any other water-based composition (for example, water-based paint). You need to be prepared for this and add a slightly larger amount of tinting pastes to the mixture than is required for other types of plaster compositions.
Adding color to the bucket
To obtain the desired color, add color
There are color selection programs that allow you to see the result of mixing a certain amount of color and plaster on the monitor screen.
This is the most convenient way to select the proportion of dyes for a large volume of work that requires the use of several containers with acrylic plaster. The exact dosage of the pigment will allow you to get the same color for all mixes. This software is available at all points of sale of building finishing materials.
Using the tinting program
Not all plasters are ideal for tinting with different pigments, so there is a certain risk when buying a finishing material for the facade. always, except in those cases in which you purchase a ready-made pigmented composition.
For example, one of the leaders of the modern market of colored plasters is the plaster from the "Farbe" plant. The manufacturer announced the availability of 2,500 different shades of this facing material, among which you will surely find the right one. It is worth paying attention to other important characteristics of this acrylic plaster.
Acrylic plaster is available in a wide variety of colors.
"Farbe" offers not only a wide selection of plaster shades, but also a technology for their long-term preservation. Due to the fact that the material is made on the basis of acrylic resins, its bright shade is protected from burning out in the sun.
The manufacturer promises a solid service life not only of the coating itself, but also of its color, averaging 10 years from the date of application.
Resistance to mechanical stress and environmental influences. Another impressive advantage of the "Farbe" acrylic composition is its high resistance to such external factors as:
A person can also influence the finishing material, for example, by accidentally hitting a stone on the wall of a house. In both cases, the plaster in question will retain its original integrity.
Samples of Farbe plasters
Environmentally friendly. The considered facing material from the "Farbe" factory is versatile, as it is suitable for work:
The possibility of a comprehensive use of the composition is due to its complete environmental safety: the entire period of service, including at the time of application, it does not emit toxic substances.
The texture of acrylic plaster "Lamb" with a grain of 2 mm
Efficiency. Acrylic plaster "Lamb" for 1 m² takes about 2.7 - 3, 1 kilogram. It is difficult to find a composition on the market of facing materials that would offer an equally modest consumption.
The manufacturer has diversified the composition of acrylic plasters with various functional additives that have given the material valuable properties.
The use of acrylic plaster from the "Farbe" factory is especially important in regions with a sharply continental climate, however, it is also suitable for mild weather conditions.
Acrylic plaster additional properties can be added to help protect walls from moisture and insects. For this purpose, various antiseptics and water repellents are used.
If the facade is made of concrete, you can use "Kartotsid-compound".
This antiseptic is an effective means of protecting against biological damage. It can be applied to dry and wet building mixtures."Kartotsid-compound" is water-based, so there are no obstacles for its use with acrylic plaster. To give the mixture of protective properties, it is enough to add 5% antiseptic to it based on the total volume of the finishing composition.
Then the plaster is mixed with a drill equipped with a metal mixer.
It is best to stir the solution with a drill or a construction mixer
Antiseptics for outdoor use
To enhance the adhesion of the plaster to the bearing surface, priming is performed. It consists in applying special solutions to the walls that improve the quality of the finishing layer.
Priming the walls
In order to get the maximum effect from the use of a primer, choose compositions (primer and plaster) from one manufacturer. In this case, you can be sure that all the components of these materials will be ideally matched to achieve the best result.
Farbe deep penetration primer
Ceresit deep penetration facade primer
There are no special primers for acrylic plasters. Use those that are suitable for processing external walls of a particular type of material. If the facade is brick, you will need a compound for working with brick, if it is wooden - with wood. The purpose and properties of the primer can be found in the information posted by the manufacturer on the container with the product.
Primer for decorative plasters
But the following primers are recommended for work with acrylic plaster mixes: "Facade-primer", "Proacryl -primer "," Proacryl-Contact "," Acrylic-primer ".
Facade-Primer - aqueous acrylic primer for facades and walls
All these compounds can be applied to walls with a paint brush, roller or spray.
Pneumatic airbrushes, spray guns, texture guns
There is such a category of acrylic plasters as thin-layer. These mixes are designed for hand-crafting decorative cladding surfaces. Thin-layer formulations have unsurpassed plasticity, easy and quick application. To obtain thicker layers, machine application is used.
In this case, dry mixtures are needed, which are diluted with water in the right proportion.
Three types of machines are popular in Russia and neighboring countries: PFT, Putzmeister and Kaleta. These units can be equipped with bunkers of different capacities: from 50 to 280 kg. The package includes a compressor, hoses for supplying the mixture, working guns.There are multifunctional devices that can work with different types of mixtures, regardless of the size of the filler included in their composition.
But the use of specialized machines does not exclude the need for manual labor. After spraying a layer of plaster on the walls, it is leveled with a trowel or spatula. If necessary, use tools to obtain a textured surface.
Machine application of plaster
Facade decoration - a significant amount of work. Therefore, it is rational to use special equipment to decorate large buildings.
This approach will help to complete the finishing work much faster than with the manual method of facing the facade.
The first thing to do is choose the right plaster mix. Its composition must necessarily include special hardeners and additives that provide crack resistance and layer strength. Among such components:
When using a machine method of application, it is necessary to know the rules for preparing a mixture and working with equipment.
Therefore, when choosing this method of facade decoration, a team of specialists is traditionally invited who are familiar with all the nuances of this facing technique. But if you have the desire and the necessary equipment, you can complete this task with your own hands.
Plastering by machine
First of all, you need to remember a few rules.
Before starting the finishing work, prepare the facade.
If there are cracks, they are cleaned of dirt and dust, all small particles are removed.
Repair of cracks
Junction points of different materials (for example, brick and concrete) are reinforced and protected by the method of reinforcement with a construction mesh with a mesh section 1x1 mm. The mesh is fixed using a cement-sand or adhesive construction mixture.
Installation of fiberglass mesh on the surface
The canvases are overlapped
Next, proceed to priming the walls. They choose the most convenient tool for work: a roller, a paint brush or a spray (spray gun).
The priming process is simple and unpretentious: the wall is covered with a layer of mortar, trying to fill all the pores and cracks with it.If the surface is difficult, apply a second coat of primer. This is done after the first layer has completely dried. The required time interval can be found in the manufacturer's instructions.
Application of the primer with a roller
Then proceed to the application of the plaster layer.
Deep penetration primer
Step 1. The plastering machine is connected to the water intake point. If there is no possibility of connecting to a centralized network, use a large container with water.
Electrical cable connection
Water hose connection
Pressure gauge connection
Mortar hose connection
Hose connection to compressor
Important point: the water must be clean. The use of technical fluids is undesirable, as this will worsen the appearance of the plastered surfaces.
If there are various salts and chemicals in the water, they can react with the substances that make up the dry mix. This can lead to the loss of plaster compositions of their properties: plasticity, frost resistance, crack resistance.
Step 2. Pour the required amount of the mixture into the hopper (this information is in the manufacturer's instructions).
Pour in the required amount of water, turn on the apparatus and prepare a solution.
Step 4. Hold the gun at a distance of 20-30 cm from the wall surface, turn on the device.
Turning on the machine
Step 5. Aim at the wall and move the gun along the work area.
Application of the solution
Step 6. After one strip of plaster layer has been applied, proceed to applying the second. Thus, the entire area of the wall is plastered.
Mechanized plaster saves mortar, since it requires much less
Step 7. After the plaster is almost completely set, trim irregularities and sagging.
This is done with a rule or a spatula with a wide metal blade. The tool is pressed against the wall and, pressing on it, is lowered down.
Leveling the plaster layer
Step 8. Wet the surface with water and grout the leveled layer. To do this, use a spatula or trowel.
You can smooth the wall with a paint brush with elastic bristles. Regularly wetting the surface, with circular movements of the hand, they perform the finishing leveling of the walls.
All works are performed at positive air temperature (not lower than + 5 ° FROM).
Preparing the walls.
The result of poor surface preparation before plastering
If there is an old finishing coating on the facade, it is removed. The walls should be clean enough, free from efflorescence, moss, mold. If there are stains from oils or flammable liquids, make a wash with water, to which special substances are added: detergents.
If there is mold on the walls, the facade is treated with means that prevent mold formation.
An excellent choice is the antifungal agent SEPTOBUD 1008. Before applying it, take a stiff brush or scraper and clean the wall. Then thoroughly rinse it with a stream of water from a hose.
A bactericidal preparation with a broad spectrum of action
If there are cracks on the walls, they are sealed with a cement-sand or putty-repair solution. If the bearing surface is fragile and there are wide cracks, a glass cloth mesh is embedded.
For shallow and narrow cracks, putty-leveling compounds can be used.
Step 2. After the repair layer has dried, proceed to priming the surfaces.
Step 3. After the primer has dried, plaster is performed.
The composition is applied to the wall with a spatula or stainless steel float. If acrylic plaster is filled with filler, the layer thickness should not exceed two times the grain section. If the filler is small, the layer thickness should not exceed 8-10 mm.
In order to avoid differences in color and structure on the surfaces, do not interrupt work for more than 10 minutes. If the area of the facade is large, it is divided into several fragments, which are plastered in turn.
In order for the mass to be homogeneous and have one color shade, new portions are regularly added to the bucket with the mixture, which are thoroughly mixed with the rest.
During work, they try to prevent the mixture from getting into the eyes and respiratory organs. Wear protective goggles if necessary.
To give surfaces a certain pattern, textured rollers, stencils, brushes with stiff bristles are suitable.
Applying the relief with a trowel
Drawing on the embossed plaster
One of the easiest ways to decorate a facade is to make a relief in the form of waves on the walls with wave-like movements of the hand.
Many acrylic plasters are textured, that is, they create a decorative surface by themselves. To obtain it, it is enough to apply and level the composition correctly.
Using masking tape, you can create interesting compositions
Plastering by hand ...
The surface to be rubbed is moistened.
Example of applied acrylic plaster
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