Facade paint on decorative plaster. Facade paint on plaster - characteristics, types, features
If the facade of the house is finished with plaster, it not only looks beautiful, but also protects the walls from external atmospheric and biological phenomena. For the durability of such protection, it is necessary to properly process the coating of facade walls. With the help of facade paint on plaster, you can simultaneously give the surface an aesthetic appearance and practicality.
Competent selection of paint for the facade
As you know, the exterior decoration of the house is influenced by various natural phenomena, which include rain, snow, frost, humidity and even ultraviolet rays of the sun.
In this case, it is necessary to take into account the temperature of the air flow that constantly affects the surface of the facade, not to mention the dust and dirt that remains on the walls. Speaking of biological threats, it must be remembered that the surface of the walls of the house is exposed to moss, mold, fungus and harmful insects.
This is not all, but the most basic reasons for the adverse effect on the walls of the house from the outside. Therefore, it is necessary to choose the right facade paint for plaster and correctly cover the walls. Below is a list of how to paint the front surface of the house:
- roller;
- putty knife;
- paint sprayer;
- a set of brushes;
- solvent;
- sandpaper.
So, for reliable protection of facade walls, the paint must meet the following requirements: operational characteristics, technological foundations and decorative features.
Performance characteristics
First of all, a performance paint must be sufficiently resistant to external environmental influences, while not losing its properties under the influence of frost, heat, air flow and humidity, which manifests itself due to precipitation.
In this regard, facade paint is divided into 2 types: weather-resistant and partially resistant.
When purchasing a dye for, it is necessary to pay attention specifically to the weather resistance of the products offered, since this option is the only right choice that can provide reliable protection for the surface of the walls.
Weatherproof paints provide vapor permeability of the plastered walls of the house. This is necessary so that the condensate remaining on the surface of the facade can evaporate into the air, otherwise it will begin to collect under the impervious coating, which will lead to the appearance of bulges, and ultimately to external damage to the walls.
This property can be revealed by paying attention to the sponginess of the applied layer. It depends on the type of binder in the content of paints and varnishes.
In addition to the passage of steam, performance must include resistance to sunlight, which can damage the painted layer. In addition, such paint will not fade in the sun and will always look like freshly applied.
An important quality is the increased adhesion. This property makes it possible to ensure high-quality bonding of dye substances with facade plaster. With its help, swelling and bulges of uneven sections of plastered walls are prevented. But it is worth remembering that not a single paint will provide high-quality bonding with walls that are poorly prepared for its application.
This is how the paint applied to the facade looks like /
At the same time, exterior paint should be water-repellent so that the walls do not absorb moisture. This will protect the facade from the formation and development of moss, fungus, and harmful bacteria. It does not hurt to pay attention to the resistance to mechanical damage, that is, the dried paint should not crumble or scratch upon accidental contact.
Technological foundations
The technology of high-quality painting is based on the convenience of applying paintwork products. Painting facades requires the thinnest layer of coating, since it is common for a thick layer to chip off with the passage of a certain amount of time. Therefore, facade paint for the house should have the property not to be absorbed into the plaster and retain its colors even with light application. In addition, it will help save on paintwork materials and eliminate the problems with drops that can form due to streaks.
Facade paint acquires its protective characteristics only after it dries. Accordingly, it should have the quality of drying in a short period. This will allow you to paint the facade even at the most inopportune time of the year, for example, in the pre-winter period. As a result, the painting technology largely depends on the properties of the paint and varnish products themselves.
decorative features
The paint must be susceptible to changing its color with the help of special colors designed to match the desired color. Also, the painted facade of the house should have reflective properties, that is, the dried dye should repel the ultraviolet rays of the sun and prevent contamination of the facade coating. According to the decorative features, paints are conditionally divided into 3 types: glossy, semi-gloss and matte.
Glossy coloring is well suited for elements such as window openings, doors and facade details. This is due to the fact that under the rays of the sun, the glossy effect creates glare, due to which unevenly processed areas of the facade are visible. But at the same time, such paint is easier to wet cleaning and has increased resistance to atmospheric phenomena. However, glossy paint is not recommended for application to uniform areas of the exterior walls of the house. It is better to paint the facade area with matte paints, as they hide possible defects in the plaster coating.
Varieties of paint and varnish products for painting facades
Each type of paint intended for painting the facade contains an adhesive, color additives and a solvent. In addition to the mandatory components, manufacturers of paint and varnish products are trying to supplement the composition with something special in order to emphasize the originality of the product. Such an addition can be both a technology of convenience during application, and reliable protection from the external environment. In this case, the basic difference is the content of the adhesive substance in the composition.
Acrylic exterior paint
Paints and varnishes based on acrylic additives are the most common and popular types of dyes for the facade of the house. Such paints have a sticky substance called acrylic polymer. It allows you to protect the plastered walls from weather and natural influences. In addition, the color of acrylic-based products is easy to change, so you will not have a problem with tinting it.
With all the environmental advantages of acrylic paint, it is impossible for mold or fungus to form on it.
Acrylic-based facade paints for a house are either organic or solvent-based (water-dispersed, white spirit).
Organic paints are designed for use in cold seasons even at low temperatures, as they have the property of rapid polymerization. They come in both glossy and matte finishes.
Water-based paints have good adhesion to the plaster coating and do not have an unpleasant odor. In addition, they have a fairly low cost compared to other types of paints.
Silicate facade paint
This option is suitable if the facade is planned to be painted in light color shades and without a textured coating. The adhesive substance in silicate paint is liquefied glass, alkali-resistant additives and calcium borate. They are designed to penetrate the plaster and create an internal protection by gluing any cracks. But such tightness does not allow steam to pass through, which is a disadvantage. The application of such paint implies a good processing of the plastered surface. In addition, silicate-based paint does not have a wide range of colors, as it contains chemicals.
Silicone facade paint
Silicone-based paint is the most modern type of paint for facade coating, which has absorbed the main advantages of other types of paint and varnish products. It contains silicone resins that create a reliable water-repellent coating on plaster, the consumption of which is well correlated with the technological properties of analog solutions.
Silicone paint has excellent adhesion even to rough surfaces, including chemical coatings. At the same time, the dried paint does not absorb moisture, but tends to let steam pass almost at the same level as that of silicate paints. Its elastic characteristics make it possible to glue even wide cracks that will never be glued under the influence of high temperature, unlike acrylic and latex counterparts.
Despite the high cost, silicone-based paint is in demand in the field of facade finishing. The reason for this is ease of application, lack of smell and safety for humans.
Other types of facade paints
Perchlorovinyl paint has also found its niche in the market due to its low cost. It has a fairly bright color palette. In addition, the painting of the facade with perchlorvinyl paintwork products can be carried out in the cold season. It protects the surface of the walls from corrosive attack and precipitation, showing high resistance to biological and chemical threats.
The disadvantage is that it is highly flammable due to its chemical base, it is quite toxic and has an unpleasant odor. In addition, perchlorovinyl dye is short-lived, with a maximum lifespan of 4 years.
To give the facade an additional decorative effect, many use structural paints for facades, since they have a thick consistency due to the presence of plasticizers in the composition. This type of paint is used as an alternative that replaces decorative plaster.
Paints are divided into a large number of types, so the choice must be made based on material capabilities and taste preferences.
Plaster is one of the most popular finishing methods both indoors and outdoors, but often it needs finishing to give aesthetics and protect the leveling layer from the effects of an external aggressive environment.
In this article, we will review which is the best facade paint for plaster for outdoor use, and which composition should be used for interior decoration. We will analyze the main stages of the technology for painting plaster layers of different compositions, talk about the manual and mixed methods of coating surfaces and analyze the consumption of materials.
Paint on plaster for outdoor work - the main tasks
Here the question is relevant: why is facade paint on plaster for outdoor work allocated to a separate category? The answer lies in the plane of difficult operating conditions. So, the materials for painting the plaster of the facades of buildings must be resistant to the effects of external aggressive environments:
For a high-quality result, well-prepared wall plaster for painting is required.
Types of paints for exterior plaster work
The market of finishing materials is replete with offers of paints, it is important to understand here that they have a different base, and depending on the composition, they have their own characteristics. Let's deal with the components and on this basis we can conclude which of the paints for plaster for outdoor work most fully meets the requirements stated above.
silicate based
Silicate paint for the facade on plaster is a base of silicate glue (liquid glass), to which mineral pigments and fillers are added. The composition guarantees a durable and durable coating on the street, inert to ultraviolet and chemical impurities in precipitation, does not lose its attractiveness for about two decades. It has excellent vapor-permeable characteristics, the facade will breathe, ventilate, and as a result, it does not threaten to become damp. vapor-permeable: under the painted layer, the wall will not dampen. Disadvantages of paint on a silicate base on plaster - low resistance to mechanical stress, abrasion, it is not elastic, which leads to cracking.
Structure of silicone paint formed by different tools
Lime
The basis of lime-based paint is slaked lime. This is the most budgetary option for finishing the plaster on the outside and this plays an important role when choosing. But having saved on the purchase, significant financial injections will be required in the future, the fact is that the paint gets dirty, washed off by rain, you will have to renew the walls once a year. Although this material cannot be called practical, it has bactericidal properties and a high degree of vapor permeability, with the right facade finishing technology, mold and fungus will not form on it. The color scheme is limited to white shades and pastel tones, of course, bright pigments can also be added, but such a paint for the facade of a house on plaster will quickly fade in the sun, the finish will lose its visual appeal.
cement base
Painting the facade on plaster with cement paint has the same features as lime material. The mineral base is white Portland cement; for the palette, different colors are added to it. In relation to lime competitors, cement paint for exterior plaster work is weatherproof, but does not have bactericidal qualities. Despite the very low price of the material, it is used very rarely in individual construction.
Acrylic facade paints for plaster
Acrylic paints for plaster are at the peak of popularity, today this is the best combination of high quality and a pleasant price. But here, too, pitfalls lie, the acrylic composition has poor vapor permeability, but this disadvantage is more than offset by low hygroscopicity, resistance to mechanical damage. Acrylic paints are divided into two types: water-based and organic solvent-based, the latter are an excellent solution for complex work, including painting exterior walls on plaster with high wear. Consumption 0.5-0.7 l per m 2.
Acrylic lays down smoothly, without pronounced texture
Silicone
At the moment, silicone-based paints are recognized as the best of the entire range of proposals. The plaster layer acquires hydrophobicity, does not absorb precipitation and dew, but at the same time high vapor permeability rates remain, the walls breathe and do not become damp. Silicone paint for plaster has good adhesion and hiding power, it does not fade with UV rays, is not afraid of frost and heat, and does not attract dust. Usually, these are water-based compositions, they are somewhat inferior to acrylic in terms of abrasion resistance and elasticity. Consumption of facade paint per 1 m 2 for plaster 0.1-0.15 liters.
There are also structured latex paints, in which plasticizers are added, thick, after being applied in appearance - this is a textured finish, a good alternative to decorative plasters, according to the method of application such as a fur coat.
The technology of painting plaster on facades
It is better to paint large areas mechanically, using an airbrush, you can get by with a roller on a long stick, but the work will take much longer. You will also need:
- the woods;
- a brush to rub influxes and paint over hard-to-reach places;
- tray for paint with corrugated surface for squeezing brushes and rollers.
Training
If the surfaces were previously painted, peel off weak layers, putty potholes. It is also necessary to check the compatibility of the existing layer and the new material.
Compatibility table
The next stage is to treat the surfaces with an impregnating, antiseptic primer, then covering it, this will increase the adhesion of the paint to the surface. The walls should be smooth, even, swipe your hand, there should be no grains and dust in the palm of your hand.
Good to know: Opaque gray primer is suitable for all types of paint. For white and pastel colors - light, for bright colors - dark.Painting exterior walls on lime-cement plaster requires additional putty. It is recommended to make a putty layer with fiberglass reinforcement, nylon mesh. After drying, the layer is sanded, cleaned of dust, primed and you can start painting.
We paint the plastered facade with our own hands
We mix the paint, it is better to do this with a mixer. To save material, you can mix the paint for the first layer with a priming gel. If the plaster is smooth, the paint is applied in even strokes, it is well rubbed along the edges slightly diagonally, the next strokes are performed with a call to the previous ones, which will avoid more saturated stripes at the joints. The second layer is applied only after the first has completely dried. It is recommended to use thick paint, for greater hiding power. Almost all paints, except water-dispersion, are designed for 2 layers of application. But if you are not satisfied with the result, dilute the paint to a liquid consistency and apply a 3rd coat.
Painting decorative plaster with a pronounced texture, such as rain, begins with the study of all recesses with a brush. And only after that the main layer is applied. If the relief plaster is started to be painted in a continuous layer, repainting cannot be avoided, and additional strokes in the protrusions will noticeably differ in color.
Interior plaster paint
Acrylic, silicate, silicone, water-dispersion, lime and even oil paints are used to finish indoor plaster - the whole range of bases, as well as for outdoor work, but other additives are added to them. But such painting of decorative plaster with your own hands is good if the texture does not require additional touches. The rating is headed by materials based on acrylic, then water-based, in bathrooms - silicate and silicone. Often, it looks simple, without chic, the interior seems faceless.
Blurring is a great way to visually change the geometry of a room.
Manufacturers have responded to the needs of modern design, and today you can buy decorative paint with various effects - this is a great opportunity to apply a structural pattern to smooth, even walls and ceilings.
Let's talk about the most popular:
- Multi-effect - various plastic, color additives are added to white paint, the compositions are applied alternately, through masking tape.
- Antique walls (aging) - first the base is applied, then the patina is rubbed.
Coating plaster with the effect of aging - relevant for modern interiors
- Craquelure - two-component mixtures, the first layer is the background, the second is decorative, cracking is achieved due to hardeners.
- Metallized coatings are an ideal solution for modern styles: gold, bronze, flat, silver, etc., used for accents in combination with conventional paints, applied with a semi-dry sponge.
Various metallic effects on smooth plaster
- Natural, natural surfaces - painting walls after plastering with compositions with small inclusions: sand, stone dust, fragments of shells, fibers.
- The effects of northern lights, mother-of-pearl, pearls, chameleon are achieved by applying a protective layer of varnish with special components to the paint.
Important: Material consumption depends on the degree of covering power and color, as well as on the thoroughness of surface preparation, for example, the consumption of oil paint per 1m 2 on plaster can vary significantly: 1 kg of white is enough for 7-10 m 2, and black or bright for 15 m 2. Specify the data in the instructions on the package.
Technique for applying paint to plaster indoors
We clean surfaces from dust, grease stains, dirt. If necessary, putty, grease. Apply a deep penetration primer, let dry. Paint for decorative plaster is usually applied in 2, sometimes 3 layers. First, you need to paint over all the relief places with a long-haired roller or brush, then you can apply the main covering layer.
If a few tones darker paint is applied to the protruding parts of the relief using a dry brush technique, the wall will visually become more voluminous. To reduce contrasts and smooth out the borders, the upper dark layer should be rubbed with a rubber roller or a regular glove.
Decorative, textured paint with the effect of Venetian plaster
Metallic effects are best applied with a sponge. A roller with a short, hard pile achieves the effect of a bark beetle over a thick layer of paint. To get the blur effect, you must first apply a light tone, then a darker one, wait for it to dry and, as it were, rub it with a damp cloth.
Exterior decoration is an important component of construction, and every owner wants to get a beautiful and tidy house, but at the same time save money on finishing materials. Facade painting on plaster is the cheapest and easiest way to ennoble the exterior of a building. Even a person inexperienced in painting science can cope with such work, and in today's article you will learn how to choose facade paint and apply it to the walls.
Not any paint is suitable for painting facades. Before deciding on the color and cost of the material, it is necessary to understand that there is building paint for interior and exterior use. In our case, compositions for outdoor work are needed, since any others are not able to withstand specific operating conditions: temperature and humidity changes, exposure to ultraviolet radiation, etc. Ordinary paint will simply peel off after the first rain or crack with the onset of frost, and work will have to be started all over again.
So, we need paint for outdoor work, but there are some nuances here. For example, different compositions may differ in the range of temperature stability. So, if you live in the south, where the summers are very dry and hot, it is better to choose a paint that can withstand high temperatures and not fade in direct sunlight. If we are talking about a house in the northern region, frost-resistant paint is needed.
You should also make a choice based on the material of the walls. For example, to paint the facade of a house made of foam blocks without plaster, you will need a good moisture-resistant paint that can mask bumps and minor cracks on the surface. For concrete walls, another paint is needed. Usually professional builders follow one simple rule - what plaster, such paint. This means that if the plaster is based on silicone, then silicone paint is also needed for it, and if acrylic plaster was used for the facade, then acrylic paint must also be taken. Otherwise, materials that are different in nature may conflict, leading to premature failure of the building.
For a better understanding of the specifics of the choice of paints for the facade on plaster, we propose to consider the properties of various compositions:
Most often, builders choose facade paint for acrylic-based plaster, because it is inexpensive, durable and easy to use.
Calculation of the amount of paint
So, if you have decided on the type of paint for plaster, it's time to calculate how much it will be needed for the entire facade. To do this, pay attention to the packaging of the selected paint - it always indicates the consumption in liters per square meter of surface in one layer. In some cases, it can be written the other way around - how many square meters of surface can be covered with a liter of this paint.
Often, manufacturers write the consumption of the composition in a certain range, like 0.1-0.25 l / m². A lower consumption figure here means painting smooth surfaces, and a larger one means rough or unprimed walls.
To save your time, you can go to the website of the manufacturer of the selected paint and look for an online calculator there to calculate the number of cans depending on the area of \u200b\u200bthe facade. Usually there you need to enter data about the type of surface and its quadrature, after which the calculator will automatically calculate the amount of paint.
To find out the amount of paint yourself, you need to multiply the area of the surface to be painted in square meters by the paint consumption, then multiply the resulting number by 2, since you need to apply two layers and add a safety factor of 1.1. When buying any building materials, you need to take a little more than the calculated amount, just in case.
It is clear that painting wooden facades, brick or concrete walls will take a lot of time, and therefore the paint needs to be stored somewhere. To do this, choose a shady and dry place. Packages should not be exposed to direct sunlight, they should be protected from frost (temperature can vary from +5C to +27C, see detailed storage conditions on the packaging). If you opened a new can and saw that the paint had exfoliated, that is, there was a transparent liquid on the surface, and the pigment had settled a little lower, mix it thoroughly with a stick or a construction mixer. This is quite normal and well mixed paint will fully meet the declared characteristics.
Paint application
The durability and quality of the exterior finish is directly affected by the thoroughness of the preparation of the base before painting. The facade plaster for painting must match the pigment used and vice versa. This will provide better adhesion and wear resistance. Any plaster should be primed first. The primer in this case will serve as additional protection against dampness and seal the base.
If you are working on an old wall, check the condition of its plaster layer. Heavily cracked plaster should be removed and cleaned. This can be done with strong water pressure or by hand with a stiff metal brush and spatula. If you notice areas of moss or mold accumulation, clean them and treat with an antiseptic. If you do not do this and just paint the wall with fresh paint, after a while the mold or moss will grow again and destroy the finish from the inside. All cracks, holes and chips in the wall should be sealed with putty. The same applies to places with peeling plaster.
To determine how strong the wall of the house is, and whether it needs strengthening and new plastering, stick a piece of ordinary transparent adhesive tape on the surface, smooth it well and rip it off with a sharp movement. If pieces of the wall remain on the adhesive tape, then the base is fragile, and it needs to be strengthened - peel off the old plaster and apply a new one. If the adhesive tape remains relatively clean, you can proceed to the primer and paint.
The technology for painting the facade plaster is as follows:
- A freshly plastered facade should be left to dry for 30-60 days (the period depends on weather conditions, the thickness of the plaster layer and the characteristics of the plaster itself).
- Apply primer. If you are working with an unplastered sand-lime brick house, its walls can be coated with a colorless protective primer, and only then painted. However, regardless of whether there is plaster on the facade or not, it must be primed.
- Facade painting.
The only material that is better not to paint is facing ceramic bricks. But this is not because the paint will not stick to it - just such a material in itself is quite beautiful and self-sufficient. If you are working on a new baked brick house, it is best to plaster and paint the facade as quickly as possible so that efflorescence does not appear on the surface of the brick wall.
Wall priming
Many people do not understand or underestimate the importance of priming before painting a wall. The primer composition works as follows: it penetrates a few centimeters deep into the wall and freezes there, filling microcracks and forming a protective film on the surface. Thus, the material of the wall becomes denser, stronger and better adheres to the paint. Since all cracks and pores of the wall material are filled with a primer, the surface becomes smoother and absorbs less moisture. Moisture is found in any paint, and if the base is too porous, it will quickly absorb, and you will need several times more paint.
The primer significantly reduces the consumption of facade paint by blocking the pores and cracks in the plaster and the wall. Its cost is much lower than that of the cheapest facade paint. The primer should be chosen depending on the coloring composition used. Usually this information is indicated on the packaging. Ideally, you should use primer and paint from the same manufacturer.
Helpful Hint: To improve the quality of the painting, use a primer in the same tone as the color of the facade paint. In some cases, instead of a primer, you can use the exterior paint itself, diluted with water in a 1: 1 ratio.
After priming the surface, leave it to dry for 1-2 days.
Tool selection
As you understand, facade painting is a very laborious undertaking, and a narrow paint brush is clearly not enough here. However, the choice of tool for applying primer and paint depends on the consistency (viscosity) of the composition, as well as the characteristics of the surface texture and your skills in this area.
The most common tools are brushes and a roller. If you are working with fairly smooth walls, choose tools with a short nap. The roller in this regard is much more convenient and will allow you to finish the job faster with less paint consumption. A brush may be needed for painting hard-to-reach places, for example, near doorways, behind pipes, near a windowsill, etc. If you are working with textured plaster, use a wide, long-bristled paint brush.
A few words about spray guns. These devices allow you to quickly cover large areas with paint, but at the same time the consumption of the dye increases significantly. It is convenient to work with spray guns on relief surfaces, but this will require a little practice. There is nothing complicated in the work, it is only important to understand how to control air pressure and learn how to handle the tool. This will take an hour of your time and some paint. Here it is important to choose the right viscosity of the paint and the diameter of the spray nozzle - if the paint is too thick and the nozzle is too small, it will simply clog.
Coloring technology
When you have prepared the paint on the plaster for the facade of the house, the primer and tools, you can get to work. If you are painting the walls of a low house, you will need a ladder. However, constantly rearranging the ladder is very inconvenient and tiring, so ideally it is necessary to build scaffolding (made from boards or rented from a specialized company). For houses of 3 floors and above, equipment for high-altitude work is already needed. This is associated with a certain risk, and therefore it makes sense to entrust the work to specialists. Alternatively, you can paint the first two floors yourself, and entrust work at height to an employee.
Painting technology:
- The day before work, check the weather forecast - on the day of painting and a couple of days after it, there should be dry and moderately warm weather. If wind is planned, cooling down to + 5C and below. Rain or fog, exterior decoration is better to postpone.
- Remove dust and dirt from the surface with a wire brush.
- Apply primer and let it dry completely.
- Cover all parts of the facade that should not be painted (windows, slopes, blind area, etc.) with polyethylene or masking tape.
- Apply the first coat of paint to the wall, being careful not to take long breaks in work. Here it is better to work in several hands so that there is no difference in color shades and stains.
- Apply the second coat of paint after the first has completely dried. Drying time depends on the composition of the paint and is indicated by the manufacturer on the packaging.
Useful advice: In order not to wash the brush or roller from paint every time during work breaks, wrap them in a plastic bag - so the paint does not dry out.
Painting facades with plaster is not only one of the cheapest and easiest ways to get a beautiful and original home. Properly selected and high-quality applied paint will provide additional protection against moisture and extend the life of the walls of the house.
Plaster is an integral part of any facade, and it also remains in construction. However, with all its functional qualities, outwardly it looks rather unattractive, remaining a gray and ugly mass. And to correct this defect, painting the facades on plaster will help, which will immediately give the whole building a bright and interesting appearance.
All about paints
Interestingly, speaking of facade painting materials, one can emphasize not only the change in color that they bring to the exterior, but also positive practical aspects for the walls of any building.
After all, high-quality paint for facade plastering allows you to preserve and increase all the positive aspects of the plaster layer, and these include:
- Strengthening the moisture resistance of the walls, which always has a positive effect on the duration of the operation of the building.
- Hygroscopicity. The material does not close the pores of the base of the walls of the house, therefore, steam removal from the premises to the outside functions normally.
- The paint coating gives additional durability to the finish and resists weathering.
- Enhances the tolerance of the finish to temperature changes, increasing the frost resistance.
- Counteracting the spread of fungus and microorganisms on the surface of the facade.
Important! The colors of facade paint on plaster, thanks to a special color manufacturing technology, do not fade in sunlight, and the exterior design will be presented with bright colors for a long time of operation.
Types
All main types of facade paint can be divided into three types:
- Silicone.
- Acrylic.
- silicate.
And each type has its own distinctive advantages.
So, for example, for acrylic and silicone paints, one can note:
- The almost complete absence of pungent odors because the basis of the material is just water.
- Painting can be carried out in already functioning premises, and not only at the time of completion of construction and finishing works.
- The service life of acrylic paint for outdoor use is about 10 years, and silicone paint is 2.5 times longer.
Important! Silicate paint is based on liquid glass, so it is recommended to work with it with more care. But the silicate base of the material does an excellent job with the appearance of small cracks on the walls.
From the point of view of appearance after application, the bark beetle facade paint on plaster looks interesting. It turns out in the form of corroded tree bark, from which its name comes, but in practice there is simply a small grain in the paintwork material, which is responsible for the effect of the bark beetle.
Application
Naturally, the instruction for painting external walls always assumes the complete completion of the main construction and installation work at the facility. That is, the roof must already be mounted, windows and doors installed, slopes and window sills made, all necessary communications carried out.
There are also requirements for weather conditions and they must be met:
- The air temperature must be consistently positive.
- The average daily temperature at the time of work should not be lower than 10 C.
- Do not apply paint during or after rain.
- The wall surface must be completely dry.
- It is not recommended to apply paint in hot weather, especially when exposed to direct sunlight.
Training
Preparation can begin by calculating the required amount of material. It must be understood that only a careful attitude to the material and the correct calculation of the area can “interfere” with increasing the consumption of facade paint on plaster.
On average, 1m2 of plaster can take up to 300 grams of paint, respectively, 1 liter is enough for an average of 3-5 square meters. Here we must immediately make an important clarification, we are talking about the consumption when applying one layer! Accordingly, with the second or third layer, the flow rate will increase.
Naturally, paint is always purchased with a margin. The price of the entire facade increases from this, but the moment of hitting the color is important here, because if the paint runs out at the wrong time, then it will be quite difficult to get into the color and it will be too clearly visible on the facade.
After calculating the estimate, you can begin to prepare the surface. To do this, the plaster is cleaned of dirt and dust. If there are oil stains on the walls, they must be removed without fail. Over time, oil necessarily penetrates through any finish.
If there are obvious defects, they can be corrected with your own hands with cement mortar or glue, after all, the paint will not hide everything.
As soon as all the primer coats are dry, which is several hours, the paintwork can be applied.
Paint application
The technology of painting the facade on plaster involves three options for applying the material to the surface of the walls:
- Simple brush. The method is suitable for a small area, plus scaffolding is required if we are talking about a private two-story house.
- roller. The most common method.
- Spray gun. With this method, the paint is simply sprayed in a thin layer over the surface.
This is not to say that there is a technique that is best or most suitable, each method has its own advantages.
In terms of coloring rules, the following can be noted:
- All material is recommended to be applied at one time and without long interruptions.
- Staining goes from top to bottom to eliminate drops and streaks on an already finished surface.
- The bark beetle paint is applied, and the grains in the material are responsible for the "corroded bark" effect.
Conclusion
Everything is good in facade paint, from practical use to appearance. A huge plus is the incredible ease of application ().
All the positive qualities of the material will be shown by the video in this article, and along with the qualities it will be possible to “spy” on the practical use of paint.
