Norms of consumption of acrylic paints per m2 for different surfaces and examples
It is recommended to calculate the consumption of water-dispersion acrylic paint before painting. After all, before starting repairs, you need to purchase all the materials. Properly calculated volume of acrylic dispersion will save time and nerves, and also help to avoid downtime due to lack of paint and varnish products. Just calculate the area of the painted surface in square meters.
Composition and characteristics of acrylic paint
Usually, an aqueous dispersion based on polyacrylates (polymers) is purchased for repairs. Such a composition is used for both interior and exterior work. It is diluted with water, does not have an unpleasant odor and toxic substances. The dispersion has a white color, a creamy consistency, with the addition of pigment it can be tinted in any shade. On the base (dry and prepared) it is applied in a liquid or pasty state.
Painted surfaces dry very quickly (3-4 hours). Acrylic does not form cracks, does not require fixers or varnishes.Water evaporates, a polymer base (elastic and durable film) remains on the painted surface, which is not washed off with water, does not fade in the sun, does not wear for a long time and has a luster mast.
Acrylic paint can be applied to plastered walls, non-woven wallpaper, wooden floors, concrete surfaces, furniture, doors. Acrylic adheres well to brick, wood, plastic, glass, metal, ceramic. Fresh dispersion can be easily wiped off with a cloth, but after drying, a special solvent will be needed to remove stains.
Before using acrylic, the surface must be cleaned of dirt, dust and grease. It is recommended to level the irregularities with plaster. For better adhesion, it is advisable to treat the base with a primer (also acrylic). Too thick a composition can be diluted with clean water. The dispersion is applied to the wall in 1-3 layers using a brush, roller, foam sponge, spray gun, spray. It is recommended to paint at a temperature not lower than 10 degrees Celsius.
How to correctly calculate the area
Before buying a composition with acrylic, you need to calculate the area of \u200b\u200bthe painted surface. To do this, you only need to know two quantities - length and width. To measure the surface to be painted, use a tape measure or tape measure (metal or plastic). The area is found as follows: the length is multiplied by the width (S = A * B). The calculation is made in square meters, since it is this value that is indicated on the banks.
If you need to paint a wall with openings for windows and doors, measure the total area and the area of each opening.Of course, it is recommended to correct (reduce) the consumption of acrylic for such a surface. It is done like this: the area of all openings is taken from the total area.
The consumption of an acrylic composition for painting architectural elements (columns, niches, protrusions) is calculated by measuring the length and width of each. Then the total area is calculated, consisting of the sum of the areas of the surfaces prepared for painting.
Consumption rate
Manufacturers of acrylic compositions indicate on the label the consumption of their products per square meter. The generally accepted standard is 150-250 grams (glass) per 1m2. True, most often the label indicates which area can be painted with a liter of acrylic dispersion. Usually 1 kg of paint is enough for 6-8 square meters.
Factors affecting the final calculation
In order to correctly calculate the consumption of the composition with acrylic, several important factors must be taken into account. After all, the paint is applied to a surface of different porosity, with different tools, moreover, not always in one layer. All these nuances should be taken into account before starting repairs.
Application method
The paint is applied to the walls using various tools: brush, roller, spray gun. The thinner the layer, the greater the composition savings with acrylic. The most economical is the spray method using a spray gun. If a roller is used, it is best to purchase a short nap tool. It is more economical in terms of acrylic consumption.
Base
The composition with acrylic can be painted over any surface. When painting a smooth, primed wall, the consumption is minimal.Most of the acrylic is spent painting a porous, rough, untreated surface with soil (brick, stone, cinder block).
Number of layers
The surfaces are usually painted with an acrylic dispersion in 2 coats. In rare cases, this value is equal to 3 or 5. The main thing is to remember that for each new layer, at least half of the established norm of paint is consumed. If for the first time to paint 1 sq.m. base meter used 250 grams of acrylic, then the second time you have to spend another 150 grams. Only 2 layers will take 400 grams.
How to calculate correctly
Before buying an acrylic dispersion, you need to calculate the area to be painted. Then it is recommended to assess the quality of the base. If the surface is smooth, even and primed, the minimum amount of paint specified in the instructions will be required.
It is important to decide how many layers of dispersion will be applied to the substrate. The final consumption of paint per 1 m2 depends on this value. When painting a wall in 2 layers, you need at least 400 grams of dispersion per square meter.
If the consumption rate on the label is indicated in liters per area of the room, then the size of the surface to be painted and the number of spots should be taken into account. It is also advisable to take into account the quality of the tool that will be used for painting. It is better to buy acrylic paint with a margin.
Calculation examples
The acrylic compound can be painted on any surface. Each base has its own consumption rate. Acrylic is least consumed on a smooth, primed wall.
For non-woven wallpaper
The pre-pasted non-woven wallpaper on the wall can be painted with acrylics. For tinting, a roller with short or medium nap is usually used (the optimal size of the villi is 5-10 mm). One square meter of surface will take 200-250 grams of dispersion.
For facade works
Exterior walls of the house can also be painted with acrylic dispersion. For this type of paint, they buy a composition where the label indicates "for facade work". Usually 180-200 grams of acrylic are used for one square meter of surface.
The surface to be painted must first be prepared, properly leveled and primed. Painting an unprepared brick wall will require more paint (200-250 grams per square meter). It is recommended to refresh the acrylic painted facade every 3-4 years. It is undesirable to buy paint in advance (in reserve). After all, the shelf life of acrylic dispersion does not exceed 2-3 years.
Acrylic-based textured paints
Textured (structural) compounds with acrylic help to create a relief or textured surface. Of course, the consumption of such material will be large. After all, the technology of applying the texture composition is not simple. First, the structural material itself is applied to the wall, and then, with the help of tools, a decorative relief is created. Usually 1 m². area meter is consumed 0.5-1.2 kg of textured mixture.
Tips & Tricks
Before buying a dispersion, you should carefully read the instructions or recommendations on the label. Usually, manufacturers indicate the consumption of their products in one liter or one kilogram for a certain area.
If it is written that 1 liter is enough for 8 m². meters, then in fact this volume of acrylic is enough for only 5-6 square meters. meters.
You also need to remember that the rate of dispersion consumption is indicated for painting the surface, as a rule, in one layer. If you plan to paint the wall two or three times, then you need to purchase a coloring composition 2 or 3 times more. Surface painting is usually carried out in 2-3 layers.
When buying paint, you should immediately buy a primer. Acrylic is also desirable. The primer will help reduce the consumption of acrylic, prevent the appearance of colored stains, and also protect the walls from the development of mold. The soil consumption rate is also indicated on the label. All you need to know is the surface to be painted.
Ordinary water will help reduce acrylic dispersion consumption. Preferably clean, at room temperature. True, it is not recommended to dilute the composition too much. Generally add no more than 5 percent water based on the total volume of the dispersion. If the paint is made in several layers, you must wait 3-4 hours before applying a new one so that the previous acrylic layer dries.
If an acrylic emulsion is used for repairs, the consumption of the composition is approximately the same as for the dispersion - 180-250 grams per 1 m². metre. In addition, when applying the second coat, only 150 g of paint will remain for the same yardage. A little more silicone emulsion is needed. The consumption of silicone paint is 300 grams per square meter of surface. To paint the same footage with a second coat, you will only need 150 g of emulsion.
There is also paint with the addition of silicates. It is an emulsion containing liquid glass.The consumption of such paint is higher than that of acrylic dispersion. For 1 square meter sq.m. leaves 400 grams of emulsion. In addition, for the second layer for exactly the same yardage, up to 350 g of composition will be required.
The thicker the coloring matter, the greater its consumption. Water-dispersion acrylic paint is advantageous in that it is relatively inexpensive, diluted with ordinary water, and is also very economically consumed. The thinnest layer gives the aerosol formulation. It is an acrylic spray paint.