Water-based paint for walls and recommendations for its application
From this article, you can find out what a water-based paint for walls is and what capabilities it has. The text contains information about all types of water-based finishing materials, their technical characteristics and application features.
Water-based paint for walls: basic information about a group of compositions
Water-based paints are an extensive category of materials intended for finishing various surfaces. To study these mixtures in a narrower sense, you should pay attention to their components, purpose and method of production. In the composition of water-based dyes, you can notice complex names of chemicals, but in simple language, most of them sound like silicone, PVA glue, chalk, etc. Each type of dye from this category has its own advantages and disadvantages, which depend on the components.
The basis for these dyes is water, which contains tiny particles of polymer substances. The type of paint depends on the nature of these substances. In addition, the composition contains additional components. Manufacturers use these elements to endow the finishing material with useful properties and improve its characteristics.
The following components may be present in the composition of water – based dyes:
- antiseptic agents;
- fungicidal substances;
- antifreeze substances.
Proportions of components in the composition of water-based paints for interior work
An emulsifier or film-forming agent is the main constituent component of water-based dyes. The field of application of the finishing material depends on the type of emulsifier.
It is used as emulsifiers:
- styrene butadiene;
- polyvinyl acetate or, in other words, PVA;
The marking of the dye directly depends on the type of film-forming agent. Additionally, the compositions are filled with mica, chalk, talc, barite. Each of these components can be present in the composition independently or together with others in a different proportional ratio. Carboxymethylcellulose is used as a thickener. This component also has a second name – the adhesive composition of CMC.
Useful advice! Experts recommend buying a spray gun for high-quality and uniform coating when working with water-based paint.
Percentage ratio of components of water-based paint:
|Component||Percentage content in the dye, %|
|Polymer in aqueous solution (dispersion)||50-60|
|Coloring pigments and fillers||35-40|
|Thickeners and plasticizers||5-8|
White water-based paint is obtained by adding a white pigment to the composition, for example, zinc oxide or titanium dioxide. All existing types of water-based dyes are labeled depending on the type of emulsifier.
The following types of materials are distinguished:
Many buyers are interested in how acrylic paints differ from water-based compositions. The usual water-based mixture is completely unsuitable for finishing metal surfaces. For these purposes, it is better to take an acrylic material that has thermal and water resistance.
The main markings of water-based paints, GOST
In stores you can find an extensive selection of paints and varnishes from different companies. Therefore, before buying a water-based paint, it is necessary to carefully study the technical characteristics and markings. These marks allow you to get an idea of what components the mixture includes, what are its properties and scope of application.
The first value is marked with the type of composition:
Next, the manufacturer places information about the type of polymer substance used as the basis for the production of the dye.
According to the type of polymer , the following types of markings on the package are distinguished:
- KCH (styrene butadiene);
- VA (polyvinyl acetate);
- AK (acrylate or styrene-acrylate);
- VS (polyvinyl alcohol).
The number “1” marks facade water-based paints, the price of which is much higher than for conventional formulations. These mixtures are resistant to all atmospheric phenomena: precipitation, low temperatures, climatic changes, the influence of ultraviolet light and microorganisms. The average cost per volume of 2.7 liters on the example of Tikkuril products is 770 rubles.
The number “2” indicates the composition intended for internal use. Thus, interior water-based paints for the ceiling and walls are marked. A similar volume of Tikkuril mixture for internal use costs about 450 rubles.
When choosing a dye, regulatory documents are also important. According to GOST No. 281960-89, a dye manufactured in full compliance with its requirements is considered to be of high quality.
Important! Standards for technical specifications have been significantly reduced. Therefore, a dye made in accordance with its norms cannot be considered high-quality.
Technical characteristics of water-based paint VEAK 1180
This type of dye is popular with consumers. The mark “VE” indicates that the composition is based on an aqueous emulsion. Acrylic or substances that are its derivatives act as a polymer emulsifier responsible for film formation. This is evidenced by the marking “AK”.
Technical indicators of water-based paint VEAK 1180:
|Degree of frost resistance, number of cycles||4-5|
|The index of conditional viscosity, with||20-42|
|Drying rate of the coating, h||15|
|Amount of non-volatile substances, %||60|
|The amount of water-based paint consumption per 1 m2, g||160|
Such indicators are more applicable to the performance of interior painting work on the decoration of the ceiling and walls. The dye fits perfectly on a pre-prepared base.
This composition allows the treatment of the following types of surfaces:
- plastered base;
- metal (subject to prior application of the primer).
The basic color base of the VEAK 1180 is white. If desired, the buyer can add coloring pigments to the composition to obtain any desired color. The average cost of 1 kg of dye is about 500 rubles.
Application of water-based paint: consumption, tinting, tools
There are two variants of coloring pigments in stores: natural and artificial. When using natural pigment, the result will be more saturated, however, there is a possibility that the shade of the coating will quickly burn out under the influence of ultraviolet light. For this reason, the use of natural color will be advisable in rooms where direct sunlight does not penetrate. Artificial pigments are not so bright, but they show high resistance to ultraviolet light.
It is very difficult to achieve the necessary shade at home, so it is better to seek help from specialists. By choosing the shade you like according to the palette that is available in each store, you can perform tinting using a special machine.
Recommendations for the use of color for water-based paint
If desired, the tinting of the composition can be performed independently. Most often, this procedure is resorted to in order to save money. The cost of white paint and a set of pigments is much lower than the price of tinted composition. Experimenting at home, you can achieve the necessary color depth. In addition, in the photo, the color of the color for water-based paint will not always correspond to what will result from mixing in the car.
In order not to overdo it, you should introduce coloring pigments into the composition gradually until the color becomes homogeneous. At the same time, the mixture needs to be stirred all the time.
Useful advice! It is extremely difficult to achieve the same shade again, so it is recommended to calculate in advance the estimated volume of consumption of water-based paint with a small margin and prepare the necessary portion at a time.
It is possible to carry out a trial tinting on a small volume in order to study the properties of the color. After that, testing is performed on an inconspicuous section of the wall. You should wait until the composition is completely dry so that the color appears. It takes 1-2 days to do this.
For small rooms, it is recommended to select shades of light colors. They can visually expand the space. If the walls in the room are dark and the ceiling is light, the room, on the contrary, will seem narrower. This method is resorted to when you need to visually raise the height of the ceilings. It is better if no more than three colors are present in the design. This will help to avoid variegation. The exception is white and black, as well as shades of the same color.
Calculation of the required volume of water-based paint, consumption per 1m2
The dye consumption rate is usually indicated by the manufacturer on the packaging. These data help to determine approximately how much composition will be required to finish a certain area.
General consumption rates of water-based dyes:
|Type of water-based emulsion dye||Consumption during initial application, g/m2||Consumption on the second layer,
Additional factors may also affect the consumption of water-based paint per 1 m2. For example, the structure of the treated surface. For painting smooth plaster, 10-20% less dye will be required than for processing textured material. When calculating, the indicators for the first and second layers are summed up. In addition, it is necessary to take into account the method of applying the composition and the features of the tool to be used.
Climatic conditions can also affect the consumption and the quality of the result. In the heat, the water from the composition evaporates quickly, so the coating may turn out to be uneven. In this case, you will need to level the surface, and sometimes tint the spots. Wallpaper for painting will require an increase in the norm by about 20%. The paper has a porous structure, so it will absorb part of the composition. About 5% of the paint is lost when processing the ceiling, flowing down to the floor.
How to properly paint walls with a roller: recommendations
It is not recommended to use a brush for painting surfaces with water-based paint. Using this tool will lead to an increase in consumption. Most often, a roller with a tray is taken for such work. In this case, the consumption of the dye, as well as the decorative characteristics of the coating, will depend on the material and the coat of the tool. A roller with a long pile is better used for finishing stucco and rough surfaces. To color a smooth base, you need to take a tool with short fibers.
Useful advice! The use of a spray gun for water-based paint will significantly reduce the consumption of the composition. This tool is considered the most economical and suitable for this type of work.
Recommendations for painting walls with a roller:
- the size of the tray should be selected so that the tool fits freely in it;
- the roller should be immersed no more than a quarter in the paint;
- during coloring, you need to press the roller with the same force, passing over the entire surface to exclude streaks and streaks;
- to dilute the thick paint, you can add water, but not more than 10%;
- do not dip the roller often, the coating should be thin and smooth;
- you do not need to try to apply a thick layer of dye to reduce the work, this will lead to overspending and cracks on the coating;
- between the layers, it is necessary to take breaks (at least 2 hours) so that the dye dries.
Is it possible to glue wallpaper on water-based paint
Water–based paint is a universal type of material that is combined with different types of surfaces. It is often necessary to change the design of a previously painted room, for example, to paste wallpaper. This option of replacing the finish is possible, but subject to preliminary preparation of the base. To do this, the wall surface is treated with a solution consisting of glue and soil. The components are mixed in a 1:1 ratio.
Wallpaper can be pasted on top of a water-based dye, provided that the previous coating is made with a high-quality composition and without violating the technology.
Pay attention! Before you start gluing wallpaper, you should check the adhesive properties of the dye (the reliability of fixing the coating). To do this, an ordinary newspaper is glued to the wall and after drying it comes off the wall. If it is difficult to detach it, it means that the coating is held firmly enough to withstand the weight of the wallpaper.
Is it possible to paint with water-based paint on enamel
Sometimes there is an old coating on the wall, usually in the form of oil paint. These compositions used to be very popular, so they were almost universally used in homes as decoration. Since these materials are incompatible, you will need to remove the old coating.
How to remove old paint from walls:
It’s much easier with enamel. In order for the water-based paint to lay on top of the enamel, matting should be performed or a primer should be applied. The matting effect is achieved by applying drying oil, although this method has a drawback – an unpleasant pungent smell.
Paint for walls in an apartment: properties, types and recommendations for use
Advantages and disadvantages of this type of coating, varieties and features of compositions, prices. Recommendations on the choice of a dye and the optimal color scheme.
Alternatively, you can apply mechanical surface treatment with fine-grained sandpaper. This will increase the degree of adhesion. A primer performs a similar function.
Is it possible to paint the ceiling with water-based paint using old paint
In order to determine the possibility of painting with water-based paint over the old coating, it is necessary to assess its condition and prepare the surface. The dye will not be able to hide all the defects, especially if the defects are present on an outdated paint layer. All irregularities and damage, on the contrary, will become visible and catchy. As a result, all the work, like the money spent on the purchase of paint, will be wasted.
If the surface is smooth and has no serious flaws, it is recommended to apply a primer before painting. If the old coating peels off, the base should be well cleaned in problem areas. It is not allowed to apply a water-based dye over old lime whitewash. In this case, you need to remove the coating and rinse the base with an alkaline solution of water.
Water–based compositions are the most convenient to use and practical types of dyes. Thanks to the extensive assortment, buyers have no problems with the choice of finishing material for interior or exterior work.