Consumption of water-based paint per 1m2, norm, advice

The consumption rate of facade paint per 1m2

The starting point for determining the size of the purchase is the consumption of material per square meter of area. There is no single formula for calculating, since the volume of solution required for uniform coverage depends on several factors:

The number of layers;
The structure of the painted surface;
Complexity of work;
The tool used;
The type and color of the toning composition;
Preliminary surface preparation.

With the number of layers, everything is relatively clear - the higher the number required for a dense, uniform coating, the more volume of the mixture will be required for this. It should be noted that with each subsequent application, the consumption will decrease, and if for the first application the consumption of facade paint per 1 m2 is 300 g, then in the second the same amount will be enough for the area 2-2.5 times more.

The structure of the building material on which the mortar is to be applied also matters. Textured, embossed coatings have a large surface per unit area, and require an increase in the calculated figures. Therefore, the consumption of facade paint per 1 m2 for plaster with a relief surface exceeds the same indicator for smooth coatings. In particular, the consumption of facade paint for the bark beetle will be 15-20% higher. If porous bases are to be finished, then part of the composition will penetrate into their structure, increasing costs by 8-10%.

The complexity of the work means a large number of protruding elements, joints and corners, as well as a combination of different colors and shades. Coating that requires clear lines or in hard-to-reach places is usually done with a brush and requires the use of an additional amount of dye solution.

The tool used by the painter determines not only the convenience and speed of manipulation, but also the economy of using building materials:

From a cost point of view, the best application method is a spray gun (spray gun), which allows the composition to be applied as thinly as possible.
Average consumption can be obtained using paint rollers. A convenient option for the facade would be a roller with a telescopic handle, which allows painting at a considerable distance from the painter.
Brushing is the most labor-intensive and time-consuming process with the most material utilization. But you will still not be able to avoid using brushes in the corners and joints.

Technical characteristics of primer-enamel for rust 3 in 1

Sooner or later, any owner is faced with wear and tear and corrosion of favorite items of the external or internal interior. And so I want to give things a second life! What materials can help in this?

Appointment

Primer-enamel 3 in 1 is a universal composition for restoring the appearance of metal structures. It is a paint for metal that does not require pre-priming and has the following functions:

stopping foci of rust on the metal surface and preventing its further spread,
coating the product with a primer that promotes better adhesion to paint,
painting the surface of the structure with decorative enamel.

Thanks to the combination of functions in the primer-enamel, you do not have to apply several layers of various materials to the product and wait for them to dry completely before applying each subsequent one. This saves a lot of time and money, and also reduces the number of working tools.

Most often, primer-enamel is used to cover street structures: gratings, fences, gates, garages, doors and outdoor furniture. This is due to the fact that soil enamels are atmospheric resistant to moisture, cold and sun.But it is also possible to use the composition for decorative purposes - for coating various interior items.

It should be noted the widespread use of primer-enamel in car repairs, especially its internal parts. Hard-to-reach places, where there is constant contact with oil, steam or high temperatures, can be easily covered with one or more layers of primer-enamel. After that, the components of the car become resistant to aggressive influences.

In industry, these compounds also found their place due to chemical resistance to oils, aggressive media, water and steam. They are used to cover elements of industrial and building structures, hangars and warehouses.

Primer-enamel can be used not only for cast iron, steel and aluminum products. It is often used to coat wood, concrete, mineral and brick surfaces both indoors and outdoors.

Ease of use, good appearance of products and availability in stores make this coating an irreplaceable assistant in the household.

The versatility of the primer enamel provides the presence of several components in its base.

Alkyd urethane varnish. It is a fast drying alkyd resin composition combined with urethane components. It is the glue component.
Anti-corrosion materials. Two components should be distinguished here: anti-corrosion pigments, which prevent the formation of new foci of rust, and rust modifiers (or converters), which neutralize existing corrosion. These additives form a phosphate film on corrosive areas.

Technical characteristics of primer-enamel for rust 3 in 1 The main purpose and scope of the primer-enamel. What are its technical characteristics and consumption per m2? What are the main advantages of a primer enamel? What features should be considered before using the material? What is good about 3 in 1 rust primer? What feedback do customers leave about the use of this composition?

Varieties

The modern paint market is represented by a huge assortment; there was also a place for facade paints. The most common are such dye mixtures as acrylic, silicate, silicone, latex and textured.

Acrylic is the most popular and inexpensive option for painting outside walls. Interacts with almost all materials from which a building can be erected. After drying, it creates a durable protective film that protects against environmental influences. Does not fade, is abrasion resistant and does not form cracks. These paints are not suitable for lime plaster and sandstone walls.

For such surfaces, silicate paint is more suitable. It is produced on the basis of silicate glue, to which mineral pigments and fillers are added. The service life of this type of glue is 25 years. It is waterproof and provides a secure grip on the material to which it is applied. Resistant to any atmospheric influences. This mixture is suitable for use on concrete and brick. Its weak side is that it is susceptible to mechanical stress and is not elastic enough, therefore, it may crack after drying.

Silicone paints are considered one of the best for painting plastered facades. In terms of their characteristics in terms of elasticity, resistance to mechanical damage and prices, they lag behind acrylic compounds, and that is why they have not received such widespread use. After applying this type of paint, the plastered surface does not absorb moisture, but has a high level of vapor permeability and is resistant to temperature extremes. Once dry, the coating is dust-repellent and not exposed to sunlight.

Latex or water-dispersion mixtures are made on the basis of polymer components.The combination of latex and acrylic made it possible to increase the operational capabilities of the formulations and increase the scope of their application. They can be used for exterior and interior decoration, but the surface should be well primed before application to avoid further growth of mold and mildew. Any type of surface can be painted with this composition. It does not have a pungent smell, is environmentally friendly, air-permeable and fireproof. Water-based paints can be diluted with water. They dry quickly and are resistant to moisture. The only drawback is that there is no way to tint them in bright and saturated colors.

Textured or structural coloring compositions are suitable for creating decorative coatings not only on facades, but also on other elements of buildings. They do not require careful surface preparation and can be applied to cracks and chips at corners. The composition of the paints contains special plasticizers that help to create a unique protruding pattern. The composition is highly frost-resistant, resistant to ultraviolet rays, insensitive to moisture, dust and dirt-repellent properties. Does not crack due to its high ductility. It can be applied to any surface - both brick and wood.

Rules for calculating the amount of paint

The first step is to calculate the perimeter of the room, for this we multiply it by the height of the ceilings. Next, we subtract the area of windows, doors, etc. Thus, it turns out the number of square meters that need to be painted.

To find out how many liters are needed, you need to multiply the volume of the consumable composition (the indicated figure on the back of the can's instructions) by the wall area. Do not forget that this amount is under ideal (or close to ideal) conditions.

Surfaces

When painting the walls in an apartment, this issue may not be so relevant, however, in apartments there are decorative elements made of various materials. In addition, this example shows how much the consumption depends on the roughness of the walls.

Paint consumption per 1 sq.m. surfaces:

70-150g wood;
100-150g metal;
150-250g concrete, plaster.

These data are given for comparison of materials. Since it all depends on the depth of the irregularities, the base for painting, such as paint.

An extra layer of acrylic primer can increase the adhesion of the wall, level out minor defects and irregularities. The consumption of the coloring composition in this case is reduced by 13-18%.

When it is necessary to paint several layers

Painting in two or more layers is required in the following cases:

when working on a wooden surface treated for the first time;
if you want to achieve a deep saturation of a matte shade;
with a liquid consistency of the composition;
when applying bright shades;
when applying one layer vertically, the other horizontally.

Application method and consumption

A spray gun is considered an economical method, but when using it with a spray range, it is worth calculating the distance from windows and surfaces that should not be painted.

The best option is a roller, it is easy to use, the paint consumption is lower than when using a brush.

The brush, on the other hand, allows you to embody design delights, but has long become an outdated method.

The consumption of the composition for the most part depends on its texture, it is logical that the thick one will leave more.

Classification and properties of facade paints

Before answering the question of how to choose a facade paint for outdoor use, you need to consider the classification of tinting mixtures.

The first level of gradation is the type of solvent used:

Water;
Organic liquids (solvent, white spirit, xylene).

Water-borne facade paints are more popular with developers. Their assortment is much richer than that of tinting mixtures dissolved with organic liquids. The main motivations for choosing are the lower price and minimal toxicity of water-based paints.

The second, no less important classification factor is the type of binder that forms a protective film. The service life of the decorative coating depends on its mechanical strength, adhesion (strength of adhesion to the base), elasticity, resistance to frost and sun.

There are several types of binders used for facade paints:

Cement.
Lime.
Liquid glass (silicate).
Acrylic.
Latex (rubber).
Silicone.
Siloxane.

All types of facade paints have common criteria for evaluating operational and technical properties:

Water absorption (absorption capacity)

Facade paint should not absorb much moisture. Otherwise, the walls will get wet, creating conditions for the development of mold and mildew. In addition, on a damp wall, the process of the release of salts from the solution (efflorescence) is activated and the plaster does not adhere well.

The degree of absorption capacity of the facade paint is indicated by the coefficient of water absorption, denoted by the Latin letter W. Manufacturers indicate its value in digital form (kg / h / m2 hour 0.5). For high-quality colourants, this parameter should not exceed 0.05-0.1 kg / kg / h / m2 hour 0.5.

Vapor permeability

This indicator is of great importance for the comfort of living in the house. The paint should not block the exit from the premises to the street with water vapor.

To assess vapor permeability, three equivalent values are used:

The mass of water vapor (gram) passing through 1m2 of the painted wall during the day.
Vapor permeability coefficient, denoted by the symbol Sd.
Diffusion resistance coefficient (µ).

High-quality facade paints pass from 110 to 140 grams of water vapor through 1m2 per day.

The second parameter of vapor permeability Sd is calculated using complex formulas. For us, only its numerical expression, indicated in the technical description of the paint, matters (optimum 0.3-0.05).

If we focus on the third criterion, then the dye composition in which the coefficient µ is in the range from 1400 to 1500 is considered good.

If the facade paint does not allow steam to pass through well, then the plaster becomes damp and falls off

Solar UV resistance

It depends on it how quickly and intensely the coloring composition burns out under the influence of sunlight. This parameter has no numerical value. Laboratory tests can be considered the only objective criterion. According to their data, silicate (polysilicon), acrylic and acrylic silicone facade paints are the most resistant to the sun.

For frost resistance, manufacturers have not come up with a digital equivalent. This indicator can be indirectly judged by the declared service life of the painted coating.

Consumption

When deciding what paint to paint the facade of the house, you should pay attention to the consumption. This is the main economic parameter.

It depends not only on the quality of the paint, but also on the texture of the wall surface and the absorbency of its material. In this regard, the amount of consumption of facade paint varies in a wide range from 0.18 to 0.7 l / m2. Manufacturers indicate the average flow rate over a smooth, primed surface (application in 1 layer).

The amount of paint consumed per 1 m2 of the facade should not be confused with another indicator - hiding power. It shows the amount of decorating compound required for continuous and uniform coloring of 1 m2. This effect is achieved only when the paint is applied in 2 layers.

Drying time

Drying time (in hours) is important for multi-layer painting. Its manufacturers are designated by two numbers

The first indicates the time after which the next layer can be applied (2-5 hours). The second digit determines the time required to achieve operational readiness (at least 24 hours at an air temperature of + 20 - + 23C).

Abrasion resistance is important only for those areas of the painted surface on which people walk.This parameter is measured in cycles of friction that a paint layer can withstand until it is completely abraded.

Applications

The choice of acrylic paint should be considered
the scope of its application. Ease of use made the composition not in demand.
only from professional craftsmen of finishing works, but also from amateurs who
independently take care of the outer walls of buildings or residential buildings. Areas
various uses and are not directly limited to construction
sphere. The main direction is finishing work (final phase), but
also:

design in architecture (embodiment
ideas and projects of artistic orientation);
processing of ceilings and walls;
painting of metal structures;
processing of wooden elements (with
outside or inside);
finishing and
finishing and decorative works related to the facade of buildings.

There are composition options on sale,
which can be used on different types of surfaces: painting by
plaster (exterior and interior), wood for facades,
concrete processing or brick painting.

Coloring compositions are available for purchase,
intended for outdoor types of work on rust. Dye
produced on the basis of organic solvent or ordinary water. Second
the option is preferable to choose when the decoration will be carried out indoors,
since it is less resistant to negative temperature indicators and to
drops in humidity indicators.

Painting or restoration work
can be assigned to the time when temperatures cross zero s
negative value, then the optimal solution would be the choice in favor of the composition
based on organic matter. This type of coating fits well on the existing surface, dries quickly. Acrylic paint
on the water, it is recommended to take when the main work will be carried out in
premises. It is also used for painting foundations with porous
structure made of concrete, artificial stone or brick. Climate with
high humidity will not adversely affect the composition and its
specifications.

Overview of manufactured brands

Harmony creates a completely matte surface and is suitable for covering walls in a nursery, living room or bedroom. The paint evenly lays on the concrete, plaster and plastered surface. A matte shade is able to hide the imperfections of the wall.

Its composition belongs to the safe type M1, so there is no need to fear for the health of loved ones. Paint consumption on a poorly absorbent surface - 1 liter per 12 sq. M, on a highly absorbent surface - 1 liter per 7 sq. M.

The Joker paint is a popular model in the line of Tikkuril paints. It is an interior finish with a smooth, silky effect. Suitable for application on the walls of the living room, kitchen, children's rooms and corridors.

The paint belongs to hypoallergenic coatings, which confirms the "eco-label" that the brand is awarded with.

This type of paint has more than 20 thousand different shades.

When choosing a color, you need to pay attention to the marking "A" for light-colored surfaces and "C" - for darker shades .. Paint consumption for a highly absorbent surface - 1 liter per 7-9 sq. M.

For a "non-absorbent" plane - 1 liter per 10-12 sq. M.

Paint consumption for highly absorbent surfaces - 1 liter per 7-9 sq.m. For a "non-absorbent" plane - 1 liter for 10-12 sq.m.

In order to create the beauty of the walls and floor, you need to choose the paint "Euro12". It is semi-matte and suitable for frequent washing. And it is convenient in rooms with high exploitation (schools or hospitals).

In homes, it is suitable for plastered, concrete and brick surfaces. It can be used to coat a radiator for heating in a variety of colors and shades. Paint consumption: 10-11 sq. m will take 1 liter of the product. With an uneven surface - 1 liter per 5-7 sq.m.

Euro 2 is the best option for covering the ceiling space.Deep matt interior paint fits perfectly and, if necessary, is resistant to wet cleaning.

The smell from the coated surface is practically not felt. Low consumption absorption - 1 liter per 10 sq.... m. With strong absorption - 1 liter per 3 sq.m. But, unfortunately, at the moment "Euro 2" is out of production.

For surfaces with high humidity use Euro 20 paint. It is not subject to wear and tear in bathrooms.

This paint prevents mold growth. The coating is semi-matt, with a special resistance to the release of water vapor.

It is also used in dry rooms where daily cleaning is used. The paint dries in 4 hours and can be applied even to old paintwork. Consumption on a weakly absorbent surface - 1 liter per 12 sq. M, and with a strong absorption - 1 liter per 7 sq. M.

Tikkurila paint "Euro 3" semi-matt, to create a rich color in the interior. It is used in rooms with a moderate load. Withstands daily washing. Dries quickly and is odorless.

With its help, you can create a magnificent interior using any of 20 thousand shades. Such a coating is consumed with poor absorption: 1 liter per 12 sq. m, and with strong absorption - 1 liter per 7 sq.m.

Euro 7 paint is widely used for painting walls and ceilings. It is latex with a matte effect. Fits flat on concrete, brick and fiberboard surfaces. Used to create a unique indoor environment.

With poor absorption, the consumption of such a coating will be 1 liter per 12 square meters, with abundant absorption - 1 liter per 7 square meters.

Pesto 10 matt interior enamel is used to cover wood, iron and fiberboard surfaces. Resistant to frequent cleaning of walls and ceilings. It does not have a pungent odor and is absolutely safe in composition.

This is especially important if the family has small children. The consumption of such a coating with poor absorption is 1 liter per 12 sq.

m, with abundant - 1 liter per 10 sq.m.

Euro Sealing paint is highly opaque, and is suitable for creating a matte color in white tones. This paint is suitable for rooms with low traffic and mainly for the ceiling.

Suitable for concrete, brick and fiberboard surfaces. If there are defects on the surface, Euro Sealing will easily hide them. Paint consumption with poor absorption: 1 liter per 10 sq. M, and with strong absorption - 1 liter per 3 sq. M.

Coloring with Tikkuril's Luya will not only create a matte effect, but also protect against mold and mildew. Consumption with poor absorption: 1 liter per 8 square meters, with abundant absorption - 1 liter per 5 square meters. m.

Paint "Remontti-Yassya" - acrylic, for a design approach to the ceiling and walls. Suitable for frequent wet cleaning. Environmentally friendly for humans. Consumption for painting with poor absorption: 1L per 12 m2, with strong - 1 liter per 7 sq..m.

Paint consumption per m2 for walls and floors

When starting the repair, the builder must not only correctly determine the necessary materials, but also count their number. In this way, an unexpected finish of the staining can be avoided only halfway through the repair due to a lack of material.

When starting the repair, the builder must not only correctly determine the required materials, but also count their quantity.

What determines the consumption rate

To determine how much paint is needed per 1 square meter of the wall, 4 main parameters must be taken into account.

Opacity determines the ability to paint over an old paint of a different shade without leaving gaps. The higher the value of this parameter, the more economical the consumption will be. High-quality materials, subject to the dyeing rules, are able to cover the base color in just 1-2 layers, compared to cheaper counterparts. The indicator is calculated by the manufacturer and indicated on the packaging, but all figures are indicated for ideally prepared surfaces when applied in a thin layer

Thus, in a real situation, the consumption will be higher.

Prepared surface reduces paint consumption
That is why it is important to pay special attention to the preparatory stage. Also, the factor in question affects the final result and the aesthetic appearance of the surface as the repair is completed.
Walls, floors or ceilings are cleaned of old dirt, grease and dust

It is also important to remove old flaking paint. If the old paint adheres firmly and does not chip, then it is sanded to a matte state. It is advisable to cover the cleaned surface with a putty. Rough, porous surfaces absorb a fairly large amount of moisture, which explains the higher consumption, therefore, the walls are then covered with a primer. These materials are cheaper than paint, provide better adhesion of the layers, improve the quality of the paint, and also reduce material consumption. This rule applies to walls and ceilings. It is permissible to apply enamel-based paints without a primer, but at the same time they are diluted with a solvent and mixed thoroughly. Primer and putty are significantly less expensive than paint, so surface preparation significantly saves on budget.

Selected paint color and base color. When planning to change the old dark paint to a new lighter one, you need to prepare yourself for the fact that it is unlikely that you will be able to do this in one step. It is recommended to clean off old paint, or apply several layers of new light paint. However, the latter option increases the cost of expensive material.

The next point is to consider the application technique. The most economical option is to spray paint with a specialized spray gun. It distributes the material evenly over the surface in a thin layer. You cannot achieve a similar result with brushes or a roller. However, when buying, it is important to consider the manufacturer's recommendations, because some paints are not designed to work with a spray gun.

Is there a difference in flow rate between wall and floor

The flooring also needs regular renovation. Most often this applies to natural wood floors. Paints and varnishes will help preserve them for a long time and protect them from decay and mold.

When working with wood, it should be borne in mind that the fibers tend to actively absorb moisture, which means that the consumption will increase

It is also important here to carefully prepare the material. First of all, the floor is sanded and cleaned as much as possible, after which it is treated with oil, and painting with paint will be the last step.

For floors, paints on acrylic, alkyd resin, oil or polyurethane enamels are most suitable. They are applied with a roller, brushes or spray gun, starting from the manufacturer's recommendations, and the average consumption of floor paint is 300-400 g per 1 m2. At the same time, working with a brush is considered the most uneconomical.

For floors, paints on acrylic, alkyd resin, oil or polyurethane enamels are most suitable.

How to determine the consumption of different types of facade paints?

Before you paint the facade of your house, you should calculate the consumption of facade paint. It is necessary to calculate the amount that will allow you to carefully carry out all the work and paint the surface in several layers.

Calculation depending on the type of material

The most important parameter that must be taken into account when calculating the required paint and varnish composition for facade work is the type of paint. The paint and varnish material is selected depending on the features of your facade. In this case, the consumption for each type will be individual.

Water based paint

The basis for water-based paint is water, which contains an insoluble emulsion in the form of a pigment. After applying such a composition to any surface, the water evaporates and only the pigment base remains in the form of a colored layer.

If you decide to purchase a composition of this type, then you should know that for facade work it is applied in two layers. The time interval between painting two layers should be more than one and a half hours.

frost resistance;
low water permeability;
lack of reaction to exposure to ultraviolet rays;
acceptable cost.

Acrylic paint

Acrylic based paints and varnishes are ideal for facade work. Advantages of acrylic painting:

the duration of the preservation of the bright color and protective properties of the coating;
resistance to aggressive atmospheric factors such as high humidity, wind or direct sunlight;
ease of maintenance, for which conventional detergents are sufficient;
fire safety;
absolute safety for human health;
versatility that allows you to handle any surface of the facade, from brick or concrete to solid wood.

As a rule, the consumption of acrylic paint is less than water-based paint. Usually it is from 150 to 200 grams per 1 m2. A more accurate consumption of facade paint for 1m2 depends on how bright you want to make the painted coating. Finally, you can only decide when directly applying the composition to the surface.

If in one or two layers you get the required shade, then for 1 m2 you will need about 130-170 grams. If you need to get a more saturated color, you will have to count on 200 grams per 1 m2.

Oil paints and varnishes

The oil composition consists of drying oil, color pigments and all kinds of fillers. At the same time, fillers can be sold both as part of a paint and in the form of separate solutions. If you are dealing with thick-grated oil formulations, then they will have to be diluted a little before application.

The calculation of the consumption of oil paint, like acrylic, also depends on the desired color brightness. For example, if you apply a small amount of red compound to the surface of the facade walls, it will look pink. The standard consumption for painting on plaster is usually 150 grams per 1 m2 and may vary depending on the required color.

Alkyd paint

Alkyd paints and varnishes are based on alkyd resins, which are used in production. Its peculiarity lies in the fact that for facade work, the composition must be diluted with turpentine, kerosene or drying oil. When diluted with each of these components, there will be an individual consumption of material per 1 m2 of the painted surface. Therefore, in order to more accurately calculate the flow rate, you should take into account the amount of additional mixtures that are used to obtain a brighter shade.

Traditionally, the consumption of facade paint per 1 m2 of wall surface is small here and amounts to about 100 grams. That is, only a liter of paint will need to be spent on 10 m2. A distinctive feature of the alkyd composition is the creation of a stylish and original appearance. In addition, this paint will protect the facade surface from the appearance of fungi and mold.