How to paint the ceiling with water-based paint? The abundance of various finishing methods does not exclude the popularity of painting the ceiling today. This coating attracts with accessibility and the ability to do all the work with your own hands. However, not everyone knows how to properly paint a water-based ceiling.
The article talks about the nuances in preparing the base for applying paint, about the technology for painting the ceiling with water-based paint with your own hands.
What compositions are used to paint the ceiling
In the old days, the most popular ceiling coatings were chalk and lime mortars. The only advantage of such coatings is their low cost.
Now similar works are carried out with water-based paints:
- The most popular of this type of coatings are - acrylic paints. Their features:
- sufficiently good properties during operation;
- the use of different compositions depending on the type of premises where repairs are required.
Compared to other similar ones, their cost is slightly higher.
To paint the ceiling you will need:
- Spray gun (see Types of spray guns: how to choose the right one). The use of such a device is the most convenient, fairly fast and high-quality method of coating. But such a device costs quite serious money, which is often inaccessible to an ordinary lover to do repairs on his own. In this case, it is worth using cheaper tools, which are shown in the photo.
- paint roller- this is the main tool for finishing the ceiling.
Disputes about whether it is possible to apply water-based paint on a surface painted with the same composition arise with regular intervals. Indeed, any person who decides to do finishing work, in particular, repaint the walls or ceiling, may encounter such a problem. But the right choice is a guarantee that the end result will be of high quality and reliable.
There are certain theoretical ideas that most professional masters are ready to support. The fact is that the staining technology assumes good adhesion between the two materials. How to achieve this? The answer is simple: completely clean the surface before applying the paint and treat it with special compounds.
In practice, things are a little different. When the wall is treated with a composition similar to that which will be used, it is tempting to simplify the work a little. Both products have the same structure, which means that the grip should be pretty good. And if it is possible to apply water-based paint on the old coating, then the saved time and money can be directed to other needs.
When working on large areas, one involuntarily arises a desire to save time and effort on dismantling the old coating. It is at this stage that the desired meets reality. The prospect of excluding the dismantling of the old cladding layer from the process casts doubt even on the opinion of professionals. But it’s worth trying to figure out if it is possible to paint with water-based paint over a similar water-based paint?
Possible options
So, the same emulsion paint was chosen as the finishing composition, which was used during the previous staining. This is a very important point. Talking about the fact that water-based solutions with different bases will be used for work is a waste of time. The answer will be unequivocal: no, it is impossible to combine such materials.
Preparatory stage
It all starts with a correct assessment of subsequent actions, in such a situation it is worth avoiding haste and rash actions. If it turns out that the decision was made incorrectly, then the result will be disastrous: there will be a need to completely redo all the work, spending additional time and finances.
It is necessary to follow this scheme:
On a note! It should be borne in mind that a qualitative result while maintaining the old decorative layer is a lottery, it is impossible to give a 100% guarantee.
Perfect Surface
It happens that a painted wall or ceiling is almost perfect. That is, the surface meets the following requirements:
- The old layer does not have swellings and cracks, the coating is completely even.
- There are no noticeable changes in the planes, differences in height and width. This is checked with a level. It happens that the previous application occurred immediately after the construction of the house. Over time, shrinkage occurred, distortions occurred, but without damage to the decorative layer.
- The areas and corners adjacent between the wall and the ceiling do not have traces of fungus and mold. This is an important aspect, because if you skip even small formations of microorganisms, their growth will occur already on the newly treated surface.
- There are no voids, the paint does not peel off when tapped.
The level rarely shows defects in the paintwork, so special attention should be paid to visual inspection and tapping If all these factors are present, we can assume that the finish will not require the dismantling of the old layer of water-based composition. This situation is quite rare. Often this happens when only cosmetic repairs are required: the previous surface has faded or the shade does not match the interior design ideas.
Applying a new coat of paint over the old
It seems that a decision on the possibility of applying similar aqueous emulsion solutions has been found. But there is one important limitation: the new layer must be darker than the previous one. Failure to comply with this condition is a guarantee of a negative result.
If light paint is applied to a dark base, then fragmentary translucence is possible The presence of defects - the path to dismantling?
It happens that defects have a local location, without greatly affecting the general condition of the surface:
- delaminations or bubbles do not occupy more than ten percent of the total area;
- cracks with a width of not more than 0.5 mm;
- slight abrasion of the decorative layer is noticeable.
In this situation, it is advisable to make a decision especially carefully. If the previous option gave a guarantee of a qualitative result, then this case involves a risk.
The presence of obvious defects in the coating is a serious reason for dismantling the old water-based paint.
A new water-based paint is applied according to a certain scheme:
Thus, even surfaces with small defects can be painted. Of course, you will first have to perform a number of preparatory procedures.
When deciding whether water-based paint can be painted over paint with a similar composition, certain features must be taken into account. Staining will be justified only in the absence of serious flaws.
It happens that when painting the ceiling, the old paintwork is removed, but sometimes this step is skipped. If you do everything right, then in this situation the result will be surprisingly good. After reading the article, you will learn how staining is carried out on old paint.
Process Features
Painting the ceiling is not as difficult as it seems at first glance. As a rule, before this process, workers clean off the old finish layer. The fact is that a thick layer of old paint can shine through and spoil the appearance of the surface. If cracks appeared on the ceiling, then the matter is completely hopeless - no matter how you paint over them, they will still be visible. If the repair has not been carried out for a long time, then under a layer of old paint you can even find mold, which will nullify all your attempts to update the surface.
If there are no such serious problems, then you can easily apply a new layer of water-based emulsion, acrylic on the old paint. Take a close look at your ceiling. If its appearance suits you, and the pieces of paint do not fall off, you can leave everything as it is.
Professionals advise you to pay attention to the following: if you used to paint the ceiling with water-based paint, then you are in luck. She's better than whitewash. Even if this type of paint begins to flake off and fall off in pieces, it may not be completely removed. You can safely limit yourself to surface cleaning, removing loose pieces and cleaning the area around them. After this short work, you can safely apply a new coat of paint.
Paint selection
If you decide to paint the ceiling over an old layer of material, then you will have to face the issue of choosing the right option. For such works, different paints are used. Each type has its own advantages and some disadvantages.
Acrylic
Perhaps this type of paint is the most popular. It is good because it is highly resistant to all kinds of pollution and dries quickly. So you can safely use this material, for example, in the kitchen, where food handling is not always neat.
Such paint also withstands high humidity well. If there is any contamination on the painted surface, it can be safely removed with a damp cloth or napkin, without fear that the paint will crack.
Acrylic paint can be safely applied to a variety of surfaces. It fits well on metal, and on wood, and on plastic, and even on already plastered bases.
Acrylic painting is also good because it perfectly hides minor surface imperfections. Textured paint is able to mask small cracks or places where pieces of the coating have already fallen off.
It is also pleasant that such a coating dries quickly and retains its color for a long time. Even if you paint the ceiling in a room where the sun's rays constantly fall on it, the paint will fade and burn out far from immediately. However, there is one caveat: when choosing this type of paint, remember that the color of the coating applied to the ceiling will be slightly different from the one you see on the package, because the material immediately darkens. This cannot be called such a big drawback, because there are a lot of colors, and you can always find exactly the shade that will suit you in the end.
With all these positive aspects, it is worth noting that the paint is not so expensive. You can buy a kilogram of paint for about a thousand rubles. Yes, and it will be spent quite slowly - you will need less material packaging to paint the ceiling in a medium-sized room. About 100 g of paint is consumed per square meter.
Latex
There are several other types of paints that are suitable for ceilings. One of the most expensive options is latex. This paint is ideal for painting the ceiling over the old layer. The fact is that it perfectly masks defects, microcracks on any surface. The ceiling painted with this material you can safely wash or wipe with a brush.
silicate
Cracks (up to two millimeters) can also be masked by silicate paint. However, it is more expensive than most analogues.
In addition, it is important to remember that silicate paints are usually not used in residential areas.
water emulsion
Water-dispersion paint is also often used to paint ceilings. However, it should be used in dry rooms - for example, in living rooms or bedrooms. This type of coating does not tolerate high humidity and quickly becomes covered with cracks, dark spots (in the bathroom or even in the kitchen). The cost of water-dispersion paint is low, which just makes it popular. In addition, it can be both matte and glossy, which is convenient for those who decorate their room in a certain style and do not want to disturb the harmony in the room.
Of these basic types of paint for repainting the ceiling, you can choose any. It can be dense and structural, oily, very light - it all depends on what kind of ceiling you have, what are your financial capabilities.
Instruments
The next step is choosing the right tools. Most often, either a roller or wide brushes are used to paint the ceiling.
Tassels
Brushes of different sizes can be used both for painting the base, and for joints, finishing elements. When painting the main part of the ceiling, they are not very effective.
If you decide to paint such a large surface with brushes, then choose the widest ones. It is more convenient to paint over the joints with walls, stucco and other decorative details with brushes.
Roller
It is much more convenient to paint the ceiling with a roller. Foam tools are used to paint the ceiling. The second most popular option is a roller with a fabric base. The length of this ceiling painting tool can vary from five to thirty centimeters.
Airbrush
The most efficient way is to use a spray gun. However, not everyone prefers this option. The fact is that the spray gun is not only more expensive than all other devices, but also more difficult to use. If you are not a professional, then you will need to first adapt to the spray gun.
How to dilute and calculate the amount?
Having decided on the type of paint and tools, you can proceed to the preparatory work. First you will need to dilute the required amount of material.
Paint consumption depends on how big your room is., the area of \u200b\u200bthe ceiling is very important. As a rule, all the necessary information that will help you calculate the paint is on the package. Check out this information.
Having chosen a water-based paint, you will see on the packaging that you should not dilute it. If the product you bought has already thickened, you can slightly dilute it with water. Otherwise, just mix the paint, roll it with a roller on the pallet and start painting.
The preparation of other ceiling paints is not much different. You will also need to add a little water to the acrylic mixture. It is best to use the product immediately after you have stirred it. It should not be allowed to freeze.
Subtleties of application
Painting the ceiling without first removing the old layer of paint is a little different from the usual repair work. You will save some time, because you do not have to completely remove the old layer and putty or prime the ceiling again. It will be enough to work out the areas with cracks and remove pieces of paintwork material falling off. If the paint is flaking, this will need to be fixed, otherwise the ceiling surface will appear uneven and sloppy.
When you cope with the most noticeable shortcomings, you will need to move on to the main work. The diluted paint should be poured into the tray - it should not be too much so that the remnants do not dry out later or are not thrown away.
Painting the ceiling begins with the most inaccessible places. Go over them with a narrow brush so that there are no gaps. After that, you can paint the entire surface. It is most convenient to work with a roller. So you can quickly paint over the ceiling over the old layer and paint over cracks, stains.
It is recommended to paint the ceiling in this way in several stages. The first layer can be applied not very carefully, but the second one will need to be worked very well. It is worth starting work with the second layer only after the first one is completely dry.
One of the most difficult stages of home renovation that every home master faces is finishing the ceiling. Until recently, lime or chalk whitewashing, which was widely used until recently, is now used quite rarely. This is explained by the fact that the initially snow-white ceiling becomes dirty over time and becomes unsightly.
In addition, such a finish requires a significant amount of labor to prepare the surface for applying the finish coat. Painting the ceiling with acrylic paint retains an attractive appearance much longer; care for such a finish is not particularly difficult. Repairs are quick and easy, and painting can be done by hand.
A perfectly painted ceiling has an absolutely monotonous surfacePreparing to repair the ceiling
The beautifully painted ceiling is shown in the photo. To paint the ceiling without streaks, you need to properly prepare for the work. First of all, you should free the room as much as possible from interfering furnishings. Then you need to carefully remove the old finish from the ceiling surface.
After that, it must be qualitatively leveled, removing all significant elevation differences. At the final stage of preparation, a layer of primer is applied to the coating to improve the adhesion of the paint to the base and its more economical consumption. You will need the following materials and tools:
- stepladder and film for covering interior items;
- spatula and paint roller or wide brush;
- sanding machine and sandpaper;
- primer and putty;
- goggles, a respirator and a tight work suit;
- a water container and a flashlight.
Highlighting with a flashlight, you can easily identify the existing unevenness of the coating. It is most convenient to moisten the surface with a spray gun or a paint roller, apply a primer with a wide brush. The use of a stepladder makes the job much easier. An airbrush helps a lot to paint without streaks.
Painting the ceiling with your own hands will help reduce the cost of repair work.
Room preparation
Painting the surface of the ceiling with acrylic paint requires preparatory measures. The room should be prepared for the simply amazing amount of dirt and fine dust that occurs when the old coating is removed. Upholstered furniture can be hopelessly damaged by crumbling pieces of limestone and chalk dust moistened with dirty water. As a result, sofas, armchairs and other furniture must be taken out of the room.
It is very convenient to close the walls and furniture with a special film Sometimes, for some reason, this can be difficult to do, in which case you should cover all the remaining interior items in the room with a waterproof film. You can fix it with a wide adhesive tape, which is then easy to remove.
Chandeliers and other lighting fixtures are dismantled from the ceiling surface, to prevent a short circuit, the supply voltage is removed from the electrical wires, which is especially important in the bathroom. Careful preparation helps to paint without streaks.
Removing the old coating
The method of removing the old coating depends on which finishing material was used earlier. The easiest way to remove whitewash is with chalk: it is washed off with a soft sponge soaked in water. If difficulties arise in this process, it is necessary to scrape off the coating with a metal spatula.
To begin with, a kilogram of table salt is dissolved in a bucket of warm water, and the cleaned area of \u200b\u200bthe ceiling is moistened with a spray bottle, a wide brush or roller. After waiting until the whitewash gets wet, it is scraped off with a spatula, to which it is useful to fasten a scoop with a wire, where crumbling dirt will collect.
The most noticeable irregularities are cleaned with a spatula. In some cases, wallpaper or foam tiles are used to finish the ceiling. Wet wallpapers are easily separated from the base, foam tiles are also easily broken off. In the latter case, it is better to scrape off the remaining glue with a metal spatula; the use of chemicals can lead to injuries to the skin and visual organs. Soot spots on the surface are removed by washing with water mixed with soda, rust spots are treated with copper sulphate.
Puttying and leveling
After cleaning the surface of the ceiling, it is visually inspected in order to detect irregularities in the coating. Cracks of considerable size are closed with a reinforcing mesh, the cavities are filled with putty and smoothed out with a spatula, the protrusions are cut off.
The seams between concrete slabs and the joints of the ceiling with the walls are tapped in order to detect voids, which are also filled with putty. After carefully leveling the surface, a primer is applied to it with a brush-brush in two layers.
A composition with antiseptic properties is well suited, which prevents the further development of pathogenic microflora. For high-quality drying of the primer, it is important to maintain the correct regime of positive temperatures in the room from five to thirty degrees Celsius.
Leveling the ceiling with putty The final leveling of the surface before covering the ceiling with water-based paint is achieved by applying putty. Its first layer is located in the transverse direction of the primer coating, the second - transversely to the first. By illuminating the surface to be treated with a flashlight, it is easy to detect and eliminate even minor elevation changes that will obscure nearby areas.
After drying, the roughness of the coating is cleaned with sandpaper. In the bathroom, putty should be applied especially carefully. Painted concrete will last a long time if the foundation is properly prepared. In the bathroom, the painted ceiling is exposed to a rather aggressive effect.
When is a brush good and what is better than a roller
Both brushes and rollers are used for high-quality painting work. The brush is good for painting corners, joints of mating surfaces, radiators, pipeline networks and other similar elements. It is convenient to carry out lime whitewashing with a large brush-brush, it is somewhat difficult to use a roller when working with such material.
The roller is best used when working on large areas: the larger the surface, the more effective its use. This is true for even coatings; curvilinear objects of complex configuration cannot be painted with a roller.
Standard ceiling paint kit This tool can be used while standing in one place, making movements back and forth with a long handle, which is important when access to the treated coating is difficult. The paint is applied evenly, without visually noticeable strokes, and this is difficult to achieve when working with a brush. Painting the surface of the ceiling with a roller gives good results.
The choice of roller is a separate issue
Roller selection is an issue requiring separate consideration. This tool is available in a variety of sizes to handle various surface elements. There are also corner rollers that have a working coating on the end part, which is necessary when processing corners. A fur coat is called a coating of the working part, it is made of the following materials:
- felt or velor;
- foam rubber or mohair;
- natural fur or polymers.
When using a roller when working, it must be taken into account that the longer the pile of his fur coat, the greater the consumption of paint and varnish material.
It is much faster and easier to work with a roller, as it takes several times more paint than an ordinary brush. 
Rollers are very different in size and quality.
To cover the ceiling with acrylic paint, a roller with a fur coat made of synthetics is better suited, while the coating will turn out to be even and without streaks. You can work with oil-based paints with almost any type of this tool. It is undesirable to only use a foam rubber coat, as this material deteriorates under the influence of solvents that make up oil paints.
Which water-based paint is better
Before going to the store, you need to decide which paint is better to paint the ceiling. In the modern construction market there is a huge selection of paints based on water emulsion. They include pigment and polymer components dissolved in water. Depending on the active substance, the following types of water-based paints are distinguished:
- having in its composition liquid glass (silicate);
- highly resistant to moisture (acrylic);
- resistant to aggressive chemical environments (latex);
- characterized by versatility (silicone);
- inexpensive in cost (polyvinyl acetate).
Several representatives of paints for the ceiling It is possible to decide which water-based paint is better in each case by a comparative analysis of their technical characteristics. It should be based on the correspondence of price and quality of this type of paint and varnish products.
Acrylic paint color and tint
Acrylic paints are available in a standard color palette. To obtain the desired shade, their tinting is used. It is a procedure for mixing paint and coloring pigments to obtain the desired shade of paintwork material.
Tinting is used when cosmetic repairs are needed, if part of the coating is swollen or peeled off, in case of a lack of paint to complete the entire amount of work, or if it is necessary to create a color palette that is in harmony with the environment.
When tinting, the paint is thoroughly mixed. Coloring pigments are added to acrylic paint, the so-called colorants, made in the form of dry mixes, pastes or the same paint. Their basis can be of organic or inorganic origin, organics give more saturated colors, but they are unstable to ultraviolet radiation. Inorganic colorants have good resistance to aggressive environmental influences, but the colors formed with their help are less bright.
If we paint over whitewash
Previously, whitewashing was widely used to finish the surface of the ceiling. If it is necessary to apply paint over it, certain conditions must be met. Whitewashing should be applied in a thin layer, in which there is no cracking. Otherwise, whitewash particles may begin to flake off when painting.
Ceiling primer - it's like butter, which will not spoil the porridge The check is carried out by applying a deeply penetrating layer of primer to the whitewashed surface. After it dries, the control area is wetted with water, and if the coating does not peel off, paint can be applied over the whitewash.
Water-based paint will stay on the ceiling for a very long time if the layer of whitewash underneath has good adhesion to the surface, and there are no bumps and cracks.
Of course, the use of a primer is mandatory if the painting is not done with the material that was previously applied. In this case, the composition of the soil is determined by the choice of finishing coating.
How to paint with a roller
Qualitatively paint the ceiling with a roller will help the observance of some simple rules. Before you begin to perform the main amount of work, you should use a brush to paint over the corners and joints of ceilings and walls. Then a little paint is poured into the paint tray, a roller is dipped into it, the excess is removed from the fur coat on the ribbed part of the tray.
When painting the ceiling, it is important to sit on a comfortable staircase Start applying the first layer should be from the window opening in the direction perpendicular to the incidence of sunlight, and the second layer is applied after the first has dried in the transverse direction. Thus, it is possible to avoid the appearance of weakly stained areas, invisible at first glance, but which will appear over time. Work should be started early in the morning, as the sun's rays at this time highlight all the irregularities well. Small defects of the dried coating found during visual inspection are cleaned with fine-grained emery cloth.
Can be used with a spray gun
You can paint the ceiling using a spray gun. Its use makes the process much faster and easier than using a paint roller. When preparing the tool for use, the sprayer is directed to the side and, relieving excess pressure in the system, they ensure that the outgoing paint lays down in a uniform and thin layer.
When using a spray gun, it is easy to ensure a uniform color of the ceiling The surface of the ceiling is divided into several sections and their sequential painting is carried out, while the paint jet is directed strictly vertically. The sprayer is held at a distance of thirty to fifty centimeters from the surface, a meter segment is passed in approximately five seconds.
Maintain an even pace of work, delaying the nozzle at one point will result in too thick a layer of paint flowing down. The first layer is applied in the direction transverse to the incidence of sunlight, the second - in the longitudinal direction. For the formation of a qualitatively painted surface when working with an airbrush, three layers of paint and varnish material should be applied. Each subsequent layer is applied after the previous one has completely dried.
Little tricks
Little tricks in the work will help to qualitatively paint the ceiling. So, the finishing layer of the paintwork material is applied in the direction of incidence of the rays of natural light, this makes the joints of adjacent layers invisible.
If a local, incompletely painted area of the surface is found, it will have to be completely covered with a new layer of paint, attempts to paint over only a defective area will lead to the appearance of clearly distinguishable spots. Visual inspection from different angles helps to identify such areas.
The scheme of movements when painting the ceiling In no case should you try to neglect the application of a primer layer. Such attempts to save money will lead to the fact that the paint that has not adhered well to the base will simply crumble soon. You should not hesitate when applying paint, undue delays will lead to the fact that the dried material will begin to stick to the coat of the paint roller, and the work will have to be started again. An excessively thick layer of applied paint can be brought back to normal by running a dry roller over it, while the pile on its fur coat will absorb the excess.
The most common way to decorate a ceiling is to whitewash or paint it. And the most used paint for this is water-based. Painting the ceiling with water-based paint at first glance seems to be a simple matter, but there are many subtleties, ignorance of which leads to spots or stripes. How to avoid the appearance of such a nuisance, we will tell further.
Preparing for painting
In order for the independent painting of the ceiling with water-based paint to be of high quality and uniform, preliminary preparation of the ceiling is necessary. It is possible to achieve uniform coloring only on a flat, puttied surface. Therefore, before starting work, it is necessary to clean the ceiling from any previous coating (with the exception of a water-based emulsion, which holds very well).
How to remove whitewash
If you have whitewash on the ceiling - chalk or lime - you need to moisten the ceiling with water, and remove the coating with a spatula. Clean everything down to concrete. Even the smallest fragments must be removed. Sometimes it is very inconvenient to scrape small areas with a spatula, it is easier to do it with a wet rag.
In any case, after removing the whitewash, the ceiling should be washed with water and detergent. After complete drying, prime and putty with gypsum or cement (preferably white) putty to an even state, which is also called “under the egg”.
How to remove old water emulsion
If the ceiling has already been painted with a water-based emulsion, simply removing it will not work. The procedure depends on how the paint holds on the ceiling. If it just changed color and you need to update the ceiling, there are no swellings, cracks and other similar problems, you can get by with a little bloodshed. First - remove dust (with a cloth with water), dry, then primed. After the primer dries, you can paint. But once again we pay attention - this procedure is used only if the water emulsion is holding well and there are no defects.
Cleaning waterproof water-based emulsion from the ceiling is still a pleasure
If there are cracks, swellings on the surface of the water-based emulsion, it must be cleaned off. There are two ways - dry and wet. Dry is to clean with sandpaper (manually or using an angle grinder), wet is to wash off. This method has to be used for paint that is not afraid of water. But it is very difficult to clean off such paint. If the water-based paint holds well, no tricks help, but there are surface defects and putty is necessary, take coarse-grained sandpaper and make the surface rough. After that, you can putty. Further - according to technology: primer and then paint.
The ceiling painted with a water-based emulsion is washed off twice abundantly wetting with hot water. The water should be almost boiling water - about 70°C. After wetting part of the ceiling, wait 10 minutes, then again moisten the same area with hot water. After about five minutes, you can remove the paint with a spatula.
Removing old paint is a lengthy process
You can repeat this procedure several times, gradually removing lagging paint from the ceiling. Small residues can be cleaned with sandpaper, and then rinsed the ceiling, dried and primed. On the primer, it is already possible to putty, sand, leveling the imperfections.
Types of water-based paint
Water-based paint is a water-based emulsion that contains polymer particles undissolved in water. The composition also includes pigments and various additives that change the characteristics of the final product. After applying the paint, active evaporation of water occurs and a thin polymer film remains on the surface.
Painting the ceiling with water-based paint begins with the choice of composition. They use four types of polymers:
- Acrylic. Aqueous emulsion based on acrylic resins allows you to get a smooth surface, has good hiding power, hides small surface defects, up to cracks up to 1 mm wide. Its disadvantage is the high price, but it is easier to work with it. In its pure form, acrylic compounds are hygroscopic and can only be used for dry rooms, but they do not interfere with the passage of steam. To create a waterproof film, latex is added to the acrylic emulsion. The same additive increases the elasticity of the dried film. Such compositions can be used in wet areas.
Acrylic-based water emulsion - a smart choice
- silicates. This type of water-based paint is based on liquid glass. The coating is resistant to atmospheric precipitation and at the same time does not prevent the removal of vapors, has a long service life (10 years or more), and can be used for outdoor work.
Silicate paints are vapor-tight
- Minerals - lime or cement. Mineral water-based emulsions have good adhesion to any surface, but are quickly washed off. As a result, they are gradually losing popularity.
- Silicone. Silicone-based aqueous emulsions are the latest in industry. These compositions are good because they "tighten" cracks up to 2 mm thick. As a result, the surface painted by them, even without excellent preparation, is even and smooth. The film is dense, but vapor-permeable. Silicone water emulsion can be used to paint the ceiling in bathrooms and other wet areas. The disadvantage of this type of paint is the high price.
Latex may be added to any of the formulations. Latex water-based paint is water-repellent. It is not afraid of moisture, can be used in wet areas.
Based on the main characteristics of these compositions, you can choose the best type of water-based paint for yourself. Each case requires its own properties and the “best water emulsion” is different each time.
What primer to use
The primer is necessary for better adhesion (adhesion) of the paint to the surface to be painted. It allows you to avoid the appearance of cracks and swelling after the paint dries. If there is no primer, this can happen. Everything will have to be cleaned and re-puttyed. Because in order for the painting of the ceiling with water-based paint to be of high quality, it is necessary to prime the surface well.
The base of the primer must match the base paint. Under acrylic paint, a water-based emulsion requires the same primer, under silicone - based on silicones, etc. Moreover, it is advisable not to save: the quality of this composition depends on how smoothly the water emulsion will lie on the ceiling.
There is an economical way of priming: the main paint is diluted with water (1 to 2) and the surface is painted over with this composition a couple of times. It's certainly better than nothing, but the primer gives a more secure grip.
How to paint the ceiling with a water-based emulsion with your own hands
Each of the water-based paints on the bank has instructions for use. It describes how it works. Some formulations just need to be stirred well before work: undissolved polymers can settle at the bottom of the jar. Some formulations require dilution. The amount of water added is also prescribed in the instructions and depends on the method of application. Under spray guns, they are bred more strongly; when using a roller, thicker compositions are required.
When diluting the water emulsion with water, it must be added in small portions. After mixing thoroughly, test on a surface area. If the paint lays down evenly, almost completely paints over the base, you can paint.
It is more convenient to pour the paint into a special container with a tray and a ribbed platform. You can use an ordinary bowl and a clean piece of oilcloth spread nearby. It's not as convenient, but it's less expensive.
Which roller to choose
A roller for painting the ceiling with a water-based emulsion is needed with a dense short pile. You need to examine it carefully. The pile should “sit” firmly and in no case should it “climb out”, even if you pull on it. Then look at how the seam is made. In no case should it stand out. It must be hard to find. It is best if it is made obliquely.
Devote maximum attention to choosing a roller: the quality of painting - the absence of stripes on the ceiling - largely depends on how good you have chosen the tool. It is more convenient to whitewash the ceiling with a water-based emulsion not from a ladder, but from the floor. To do this, the roller is planted on a long handle and well fixed.
How to paint without streaks
To avoid streaks on the ceiling, painting the ceiling with water-based paint should be completed no later than 20 minutes. Immediately after application, water begins to actively absorb / evaporate, and stripes appear at the junction of the dried and “fresh” color. Therefore, it is desirable to prepare the room. It is necessary to turn off (wrap) the radiators, to prevent the appearance of a draft. It is also advisable to wash the floor immediately before whitewashing, even if you work during the day, turn on the lights, this will allow you to better control the quality of the painting. After that, you can get to work.
Ready-to-use water-based paint is poured into a container, a roller is dipped into it, then it is well rolled over the site, achieving uniform distribution over the entire surface. When the roller has a solid color, they begin to paint.
The corners are painted over with the first brush. After applying a little paint, take a small roller and roll it well. Then they begin to paint the main surface. The first layer is applied parallel to the window, the second - perpendicularly.
It is necessary to stand so as to look at the painted place at an angle. This will give you a good view of how evenly the paint has spread, as well as where you have already painted and where you haven't. Move systematically, without jumping from one piece to another.
The width of the strip to be painted at a time is slightly larger than the width of the roller. After wetting the roller, place it approximately in the middle of the strip. Roll the paint quickly in both directions from one wall to the other. Don't waste too much time, you don't have much. On average, the water emulsion dries up in 10-20 seconds. We didn’t have time to put a strip next to it before - the border will be clearly visible, from which you will not get rid of. Having distributed the paint more or less evenly over the strip, dip the roller into the paint, and again roll it from the middle of the ceiling. At the same time, go into the already painted strip by about 10 cm. All this at a good pace without stops and smoke breaks. The edges of the dyed strip should not dry out. In general, these are all the rules.
After applying the first coat of paint, some places may be less well painted over. It is necessary to wait for complete drying, and paint a second time. This should already be enough to get a flat surface. If even after the third layer of water-based paint you have stripes and stains on the ceiling, you will have to redo it again. It is necessary to level the surface with sandpaper, prime again and paint again.
Which color
The easiest way to achieve perfect evenness of color is when using "snow white" paint. All pigments clearly highlight even small irregularities, so the process should be given maximum attention or use an acrylic or silicone-based water-based emulsion.
