How to remove old paint with a building hair dryer. How to remove old paint: proven ways to quickly remove paint (95 photos). All dismantling methods

Many, once in their lives, have removed old paint from various surfaces and can say that this procedure is not so simple in its essence. First of all, this requires a lot of patience and work from a person.

But, fortunately, this problem is practically solved now. A construction tool such as a construction hair dryer has appeared, which you can purchase by visiting the Master Tool online store. It does an excellent job of removing old paint and other evaluation tasks.

Let's talk about the advantages of this device and how to use it. The article will also reveal little secrets of working with a building hair dryer.

Construction hair dryers are used in numerous ways in the production of construction work. For example, you can simply dry the wallpaper with it, or even use a hair dryer to solder non-refractory types of metals.

Let us dwell on the procedure for removing paint from the surface using a building hair dryer. This tool is perfect for this kind of work.

The paint easily begins to be removed after passing a jet of hot air from a building hair dryer over its surface. The use of the latter not only speeds up the process, but also guarantees the quality of the result.

As for the very process of using a building hair dryer, it is not so difficult and within the power of any novice builder.

If you have ever held and used an ordinary household hair dryer in your hands, then you will not feel any difference in the use of a building one. These two species differ only in the temperature of the air that comes from them.

Accordingly, this indicator is very high for a building hair dryer, so before starting work, you need to carefully protect your hands so as not to get burned. For this, ordinary cotton construction gloves are suitable.

When removing old paint, you need to use a hair dryer in conjunction with a spatula or some kind of scraper. To make the paint move away from the surface faster, adjust the temperature of the hair dryer.

It should be high if the paint layer is thick and vice versa. Warm up the surface with paint directly in front of the scraper, moving a little further and faster than it all the time.

If you are removing paint from a surface inside a building or room, try to take breaks every half hour and ventilate the room. You can just get chemical poisoning from the fumes that form from heated paint.

But there are some secrets even when removing old paint with a hair dryer. If you use a spatula with it, then use only its sides to remove paint. Since it is the side of the spatula that is the most blunt, which means it will remove the paint qualitatively and better.

Also, do not try to heat the surface very much. This will greatly soften the paint and make it difficult to peel off. It will start to stick to the surface. It is necessary to evenly clean off the already soft layers of paint, while making progressive and consistent movements with a spatula.

Removing old paintwork The process is long and tedious, but necessary. Thick layers of paint on frames and jambs eventually cause windows and doors to stop closing properly. If you paint walls, floors, ceilings directly on top of old paint, you can never be sure that the decorative coating will last long enough. Old paint tends to peel off, which means it negates all repairs. Therefore, you need to remove the old paint!

There are two main ways to do this:

chemical- with the help of special compounds;
thermal- using heated air.

Regardless of which paint removal method you choose, remember to follow safety precautions. Work with toxic materials and paints in gloves and a respirator.

Removing paint with washes and exterminators

To remove fresh paint, a solvent is most often used that matches the type of paint - acetone, white spirit, solvent, etc. But in order to cope with outdated and completely dried paint, they are not enough, in this case complex solvents are useful - paint removers and destroyers .

washes- These are special chemical compounds designed to remove old paintwork, hardened fillers, sealants and other materials. The wash is absorbed into the paint and destroys it - the paint swells and softens, after which it can be quite simply removed with a spatula, stiff brush, chisel or wooden scraper.

Choose an old paint remover according to the type of paint you want to remove and the base material on which this paint has been applied. Instructions for use are indicated on the packaging - read them carefully! Washes contain aggressive chemicals in their composition - acids and organic solvents that interact with the paint, but do not destroy wood, metal or other materials. Washes are toxic, so try not to lean over the surface to be treated, the room must be regularly ventilated during work. Most exterminators are not washed off with water. When opening a jar, remember the main rule of a chemist - keep it with the neck away from you so as not to accidentally inhale the accumulated vapors.

You can apply the remover or destroyer with a regular brush with natural bristles. It is desirable that the brush does not have plastic parts. When working with exterminating compounds, plastic spatulas and other tools should not be used at all. Many washes have a thick gel-like consistency, which allows them to be applied in a fairly thick layer even on vertical surfaces. After the wash is applied, wait for the time required for the reaction, but do not allow it to dry completely, otherwise the whole work will have to start over. If it is not possible to remove the coating completely at one time, then the procedure should be repeated. Minor residues of paint can be cleaned with sandpaper.

Remember that you need to work with the wash very carefully. If the composition gets on other items, it can ruin them. Plastic or painted surfaces must be protected from accidental contact with washer and paint residues. Don't forget to cover the floor too.

If you have leftover wash, then it can be useful for cleaning and preserving brushes.

Removing paint with a blow dryer

The second way to get rid of old paint is to treat the surfaces with hot air using building hair dryer (thermal gun). A building hair dryer is designed in the same way as a regular hair dryer. Inside its case is a filament coil and a fan. A building hair dryer is inexpensive, and in addition to fighting old paint, it can be used for drying, and for local heating, and even for welding plastic (a set of special nozzles is often included in the kit). Temperature and air flow rate are adjustable. So buying a building hair dryer in many cases can be a much more profitable purchase than using washes. Especially if you are renovating an old house or apartment.

Direct a jet of hot air at the paint. When it begins to swell, peel off and soften to the consistency of plasticine, remove it with a spatula or chisel. You will have to work directly in a stream of hot air, otherwise the paint cools quickly and loses its plastic properties.

Hot air treatment is good for wooden surfaces. The main thing is not to overdo it, so as not to bring the tree to charring. Extreme care must be taken when working with plastic surfaces, as plastic can be overheated and irreparably damaged. The tool should also not have plastic parts (use metal spatulas with a wooden handle). A hair dryer is also not suitable for removing paint from metal, since metal has a high thermal conductivity and removes heat from the paint, preventing it from heating up to the required temperature.

Special care should be taken when working with a building dryer near wires, furniture, glass, wallpaper and other flammable materials. You can protect surrounding objects from heating with a sheet of plywood or thick cardboard. It is recommended to remove the glass from the windows, as they are very sensitive to temperature changes and can easily crack. Keep in mind that hot air rises, do not lean over the work area, keep your head at or below the hair dryer. If the hair dryer nozzle becomes very hot, use stands and do not leave the hair dryer on unattended.

When heated, toxic fumes evaporate from the paint, so ventilate the room from time to time. If you are removing paint from furniture or, for example, from doors that can be removed from their hinges, then it is best to do this outside.

After the old paint is cleaned, the surface can be puttied, dried, processed

Different paints are removed in different ways: some are easier, others sometimes baffle even experienced builders. It all depends on the type of paint and the surface on which it is applied. In order not to waste time searching for information and various experiments, study this article carefully. In it, we will look at all possible ways to remove paint, describe their advantages and disadvantages, do not forget about security measures, and also mention ways that a smart person should not use at all.

Remove or leave?

Painting the walls of kitchens and bathrooms was very common in interior design during the Soviet period. Therefore, many of us are still faced with the need to remove paint from walls, floors and ceilings, for example, before leveling them or before laying ceramic tiles. Should it be removed or can the floor and walls be restored over the painted surface?

It all depends on what you plan to do next. If you decide to sew up the wall with drywall, you can leave the paint on the wall. But in most cases, you still have to remove old paint from walls and ceilings, since the painted surface has almost zero adhesion (adhesion) to tile adhesives, cement plasters and any building mixtures. So if you decide to apply plaster on top of the paintwork - the joy of the repair you have made will not last long.

How to choose a paint removal method?

How to choose the best way to remove paint?

Four factors influence the choice of one or another method:

the surface on which the paintwork is applied, and what you plan to do with it next;
type of paint, number of layers and strength of its adhesion to the surface;
tool available;
the budget you have.

The paint itself can be of several types: water-based, acrylic and oil. The most difficult thing is to remove oil paint from concrete surfaces. Therefore, we will take a detailed look below on how to remove old oil paint.

Of course, you may not know what kind of paint is on the walls of your home. In this case, you still have to experiment a little with removal methods on a small section of the wall. Try the least time-consuming, gentle ways first.

The paint can be applied to metal, wood, drywall or concrete. The most difficult thing is to remove oil paint from bare, unplastered concrete from the ceiling.

What do you need?

Depending on the removal method you choose, you may need the following tools and materials:

spatula, iron scraper or wide chisel;
chemical paint remover, brush or roller;
ax for notches;
building hair dryer;
electric drill with a special nozzle;
grinder with a wide nozzle;
water;
respirator, goggles, gloves, other personal protective equipment.

Description of removal methods. How to remove oil paint?

It is especially difficult to remove oil paint from walls and ceilings unless they have been previously plastered. In general, there are not so many ways to remove oil paint. To come up with something new, completely harmless, fast and not requiring much effort, unfortunately, science has not yet succeeded. Therefore, we consider all possible options with their pros and cons.

In general, all existing paint removal methods can be divided into three groups:

chemical;
thermal;
mechanical.

chemical method

The essence of the method: prepare a chemical solution for removing paint according to the instructions, apply it to the surface with a brush (it is better to move in one direction) or with a paint roller, give time to soften the paint and remove the paint with a remover with a spatula, a metal scraper or a brush with a metal bristle. This method is the fastest, but the smell can remain for a long time. Also note: if the paint has been applied in several layers, the use of a wash does not guarantee perfect removal immediately. It may need to be applied in two or three steps.

Removing paint with chemicals is a method that has a lot of disadvantages. Firstly, it is highly toxic and has a sharp specific persistent odor, secondly, it can cause burns if it comes into contact with the skin, thirdly, it requires special disposal (in no case into the sewer), and fourthly, it is not cheap.

If you still decide to use chemistry, be sure to follow the safety rules. Work with reagents only in well-ventilated areas using personal protective equipment (respirator, goggles, gloves), pregnant women and children should not be in the room. It is necessary to completely protect all parts of the body from chemicals. this mixture of acids and solvents is very aggressive and contact with it will lead to disastrous consequences.

You can also try the following methods. To remove paint from a plank floor, moisten the boards thoroughly with water and cover with a thick layer of soda ash. Cover it all with damp burlap and leave for a day without letting the burlap dry. A day later, you can easily clean the paint swollen from dampness with a spatula.

You can also remove old paint with a mixture of potassium carbonate and lime. Mix in water 1.2 kg of quicklime and 400 g of potassium carbonate (or soda ash) until thick. Apply the mixture to the surface and keep it for 12 hours. After that, the old paint will be removed easily.

Another option is to remove oil paint with liquid glass. Lubricate, let dry well. The silicate film should begin to peel off along with the paint. Repeat the procedure several times.

thermal method

Removing paint with a building dryer is a method that has been known for a long time. Heat the painted surface with a building hair dryer until the paint softens and with a spatula (another scraper) clean off the soft paint from the wall, doors or floor. If there is no hair dryer, take a wide sheet of foil and heat the paint through the foil with an iron.

The method is not applicable in places where electrical wiring passes or there is a decorative coating that can be damaged by high temperatures (for example, plastic).

But this method is ideal for removing paint in places where vibration and shock are unacceptable (for example, glazed doors, window frames, etc.). But a very significant drawback of heat treatment is the pungent smell of paint and the release of toxic substances when it is heated. Therefore, it is necessary to reliably protect the respiratory system and use this method only in well-ventilated areas.

mechanical method

Taking into account the physical properties of the paint, which releases strong toxic substances during chemical and thermal removal, the most optimal is the use of a mechanical removal method.

The well-known old grandfather method - laborious, slow, but cheap, non-traumatic and least harmful - notching the walls with an ax. To remove the paint, you will need, in fact, an ax, water and muscles. First, make notches with an ax, then sprinkle the wall well with water, wait a few minutes until it is absorbed, and clean off the paint with an ax. To work faster and more efficiently, you need to choose the right angle of inclination of the ax.

Most often, this method is used if further wall cladding with ceramic tiles is planned, since the adhesion of tiles to a non-smooth surface is the most ideal. Although laborious and slow, the method is quite acceptable when you need to process a small area, and is almost ideal in poorly ventilated areas.

Mechanized mechanical methods

To speed up the mechanical removal of paint from a concrete wall, make your work easier and increase its productivity, we recommend using mechanized methods.

You can use a grinder with a wide range. With such cleaning, the dust will be very, very much: after a minute of work, you will have to wait twenty minutes until the dust settles. But today there is already excellent new equipment with a built-in vacuum cleaner that allows you to remove paint from the wall as cleanly as possible. Watch video:

There are two more ways with nozzles for a puncher.

The first method is to use a chain as a nozzle on a drill. This is a fairly effective and cheap method for removing paint and rust from concrete, wood and metal surfaces.

It is possible to use chains of two configurations. The nozzle of the first configuration, the so-called paint remover, is shown in the photo and in the video below.

The nozzle of the second configuration is a chain of 13 links with a link thickness of 5 mm. The center link rotates 6 links on each side. A 6 mm bolt is used as the basis. Put on the chain and press it well with the nut. The drill turns on by turning to the left.

If the extreme link flies off on one side, it is necessary to remove it from the other side for balance. You can remove the paint until there are at least three links on each side. Unlike a brush, which produces a lot of fine dust, the chain beats off the paint in pieces. You must be protected from mechanical damage.

The second method of removing paint from a concrete wall is to use a brick crown as a nozzle for a puncher.

How to remove acrylic paint?

Acrylic paint can be removed with a good metal brush or even coarse-grained sandpaper. This is handmade, so don't forget the gloves. If the paint is good, it will not come off well. In such a case, you can use the removal methods described above for oil paint. Keep in mind that if you plan to cover the surface again with acrylic, it will fit well on any acrylic paint even without cleaning.

The Worst Ways to Remove Paint

Ways not to remove old paint:

Thermal method using open fire. It is highly flammable;
Chemical washing in unventilated areas.

And remember. Whatever method you choose to remove the paint, be sure to use personal protective equipment. This is especially true for the respiratory and eye organs. After all, when cleaning surfaces of old paint, you are exposed to several hazards at the same time: dust, toxic chemicals and small particles of paint flying off the wall.

Everyone who has ever encountered a problem knows how laborious it is to prepare the surface for subsequent finishing. It is especially difficult to remove the coating if the paint was applied in a thin layer, a quality material was used. As a rule, this stage takes place in the most protracted mode, since the dismantling of the old one does not make fundamental changes in the room and is difficult to perceive as a repair.

One of the most common questions asked when performing cosmetic repairs is what and how best to remove the paint. There are many techniques to choose from based on what paint was used, what surface it was applied to, and what kind of finish will be applied to the treated surface.

If the next step after processing is to cover the surface again with paint, then you should decide. Should it be removed in whole or in part.

Previously, the main paint for repairs was oil. If with such a paint composition the wall surface remains even, has no chips or cracks with bubbles, the next coat of paint can be applied over the old one. If there is damage to the surface in the form of a peeled off old layer, then partially, where the paint began to fly around, it must be removed.

Although all modern paints, regardless of what basis they are produced on, whether it is water-based or acrylic or silicone, have a high adhesion. But for any composition, an important condition is the presence of a flat surface. Therefore, if the wall is not even and is to be puttied, the old paint must be removed completely.

This is due to the fact that the putty has a low adhesion to paints and varnishes and can come off with subsequent layers. Oil-based paints are the hardest to peel off. The fewer layers were applied, the more difficult it is to get rid of it. A thick layer clears faster.

Tools

To carry out paint removal work, you may need the following tools and tools:

protective equipment for the skin of hands, face, eyes. It can be rubber gloves, construction glasses, a face mask;
knife, pointed spatula or chisel;
building hair dryer or blowtorch;
liquid with a special chemical composition for removing paint;
brush;
perforator or drill;

Paint removal methods

When choosing the most optimal method for removing paint, you should first of all consider from which surface it will be removed. For example, the thermal method is ineffective if the paint has been applied to putty or concrete.

There are three methods for removing paintwork. These are mechanical, thermal and chemical methods. It is possible to use each of them independently, without resorting to the services of specialists. In the photo you can see how to remove the old paint, depending on the method chosen.

mechanical method

The advantage of this method is the absence of toxicity during processing. It is good to use in closed spaces that are difficult to ventilate. For example, in the bathroom, kitchen. It can be used if there are children, pregnant women, pensioners in the apartment during the repair.

When choosing this method, you must first decide on the tools available at home. If special power tools are not available, then work can be done using conventional tools.

One of the most common and proven over the years manual processing methods is the method using an ax and water. This method is suitable for removing old paint with your own hands from walls, door jambs, doors.

With an ax, serifs are made in the course of applying the paint. Further, the wall is abundantly wetted with water. Within 10 minutes, water soaks into the space formed after the serifs, forming a small porosity for air to penetrate under the paint, to facilitate its removal.

At the end, with quick movements from top to bottom, it is cleaned off with an ax. The chisel is suitable in narrow areas or those requiring the greatest care, for example, in the area of \u200b\u200bwiring, sockets.

Work can be done with a hammer and chisel. The scheme consists of hammer blows on a chisel, which is attached to the wall.

The mechanical method is the most economical and spends the greatest amount of physical effort and time.

To remove paint from the surface of the walls, for example, in the bathroom, you can use a drill or grinder. For these works it is better to have special nozzles. If they are not, then it is worth preparing for the fact that the whole room will be instantly covered in dust in the air. The most convenient nozzle is considered a grinding wheel.

Paint is best removed from concrete with a drill. For her, special nozzles are supplied for such work. The best paint remover is considered to be in the form of several interconnected chains.

chemical method

The chemical method will help to quickly remove the paint. A special solvent is used to carry out the work. It must be applied to the surface and allowed to soak for 15-20 minutes. After this time, repeat the procedure several times.

As a result, the paint will soften and can be easily removed with a few strokes of the spatula. The chemical method is more suitable for a surface that was painted no more than two years ago.

It should be remembered that the area of penetration of evaporation from the solvent is very large. Such a method may not be harmless not only for the workers themselves, but also for the residents of neighboring apartments.

thermal method

This method is ideal for removing paint from floors. To carry out the work, a building hair dryer will be needed. This method is most effective for removing old paint from wood.

The technology is very simple. It is necessary to direct a hot stream of air to the surface area to be treated and wait until the paint begins to swell. Finally, clean the resulting mass with a conventional spatula.

Old paint does not make it possible to qualitatively update the interior. It cannot be freshly coated except on drywall and paneling. Most often, repairs involve wallpapering, applying new paint or decorative plaster. In this case, the removal of the coating is mandatory. How to remove old paint from walls? There are three main methods of removal: chemical, thermal and mechanical.

Materials and tools: solvents, rubber gloves, respirator, goggles, spatula.

To use this method, you need special substances - washes, which can be purchased at a hardware store. As a rule, such substances have a name containing the words "remove", "anti" and "wash". Available in cans or aerosols. The composition contains organic or alkaline solvents. Manufacturers announce the products as low-toxic, but it is better to work with the use of protective equipment and with open windows.

Before using the alkaline composition, the surface is treated with white spirit. In the absence of special substances, the wall should simply be washed with water.

The wash is applied to the wall with a brush or roller, left for a certain time according to the instructions. Usually the time does not exceed two hours. It is important to prevent the wash from drying on the surface. After that, the softened paint can be easily removed with a spatula.

You can not buy a finished product, but cook it yourself. To remove oil paint, you need to take potassium carbonate and lime. Recipe: a kilogram of quicklime and 300 grams of potassium carbonate must be dissolved in five liters of water. The mixture is applied with a roller for 12 hours, then removed with a spatula.

Some craftsmen use liquid glass, which is applied to old paint with a roller. Leave for adhesion for two hours. Glass attracts paint and falls off with it.

The removal rate depends on the number of layers of paint. Washing can be reapplied. When removing enamel or oil paint, the operation will have to be repeated several times. And not the fact that it will be possible to remove it completely. Then you have to use mechanical means.

Advantages:

ease of use;
does not require physical effort;
lack of noise and dust.

Flaws:

toxicity;
inability to use for allergies;
the wall after applying chemicals must be washed several times;
high cost when using special tools.

thermal method

Materials and tools: blowtorch or building hair dryer, goggles, gloves, spatula.

The easiest way to thermally remove paint is to use a blowtorch. Limitations of the method: risk of paint ignition, toxicity.

There is also a "grandfather" way - the use of an iron. The wall is ironed with a hot iron through a layer of foil.

A building hair dryer is much more efficient and allows you to carry out the operation much faster. The heating temperature of about 700 degrees allows you to remove old layers of paint quickly enough.

Under the influence of high temperature, the coating swells and peels off the walls. Then we remove it with a regular or figured spatula. It is important to remove the paint immediately after heating, otherwise it will cool down and will not peel off.

Before applying the method, you need to test on a small area. Some types of paint from heating, on the contrary, tightly adhere to the surface of the wall.

Advantages:

the use of an iron does not require special knowledge and money;
speed when using a building hair dryer.

Flaws:

temperature-induced toxicity;
accidental melting of sockets, switches;
electrical wiring damage;
fire risk.

mechanical method

Materials and tools: goggles, gloves, tool for mechanical cleaning.

There are several ways:

the use of an ax and water;
grinder with a grinding wheel;
drill with a nozzle;
metal brush and spatula.

The use of an ax and water is one of the simplest methods. An ax makes frequent notches on the old paint. The roughness is applied with the edge of the metal sheet at a slight angle to the surface.

Warm water is sprayed from the spray gun, which penetrates the created cracks and softens the paint. After some time, the surface is cleaned with a spatula. If the paint is not completely removed, the procedure will have to be repeated.

You can not use an ax, but simply soften the paint with a special solution and remove with a spatula. It is recommended to prepare a solution of iodine and warm water (a bottle of iodine in a bucket), apply to the walls and wait for softening.

It takes a long time to clean the old coating with a hammer and chisel, but it is environmentally safe. A chisel is used to pry off or specially peel off a piece of paint, then by tapping with a hammer, the paint is peeled off the walls. Small pieces are scraped off with a spatula. In this way, cleaning the wall is physically difficult and takes a long time.

The use of a grinder with a special circle significantly speeds up the work. Instead of a grinder, you can use a drill with a nozzle in the form of a brush for metal. There are three types of nozzles:

Chain paint remover. This is a nozzle in the form of three chains, each of which has 13 links. Removal of paint occurs quickly and in small areas. There is practically no dust. The plaster is not damaged. The downside is the quick wear of the chain nozzle.
Crown nozzle. Cleaning is fast, but very dusty.
Korshchetka. It also generates a lot of dust at high stripping speeds.

Using a tool, the paint is quickly peeled off, but the method is very noisy and a lot of dust suspension is formed.

If the paint is already peeling off, then it is better to simply remove it with a spatula and scrape it off with a metal brush in difficult places. The method is labor intensive and time consuming. But absolutely not dusty.

Advantages:

speed when using a special tool;
ease of operation using conventional mechanical means;
cheapness.

Flaws:

strong noise from the grinder and drill;
dustiness of the room.

Criteria for choosing a method for removing old paint from walls

The presence of a special tool (grinder, drill, building hair dryer, blowtorch).
Terms of work.
Time for work.
Type of old paint.
Type of surface on which the paint is applied.
"Old age" coverage.
Availability of protective equipment.

If it is necessary to carry out work in a residential area, then the time for their implementation is sharply reduced, and safety requirements are increased. In this case, it is better to use a mechanical method (without a special tool) or a chemical method with a wash.

If no one lives in the room, any methods can be used, since the level of noise, dust and toxicity is not so critical.

The absence of a tool automatically removes the problem of choice and the paint will have to be removed with a spatula, chisel or ax.

In the absence of a respirator and goggles, one should not take on thermal, chemical and mechanical methods using a drill and a grinder.

If the old paint on the walls is waterproof, then it can only be removed thermally, mechanically without the use of water and chemically.

If the paint was applied more than two years ago, then the chemical method may not work.

Acrylic paint cannot be removed chemically and thermally, only a mechanical method is suitable for it.

Never use a blowtorch on wooden walls because of the risk of fire. The use of mechanical methods is also limited - the tree can be damaged. It is better to use a building hair dryer or washes.

Safety regulations

The room should be ventilated during work and after them during the day. Windows are best kept open.
It is forbidden to work without protective equipment.
You cannot smoke indoors.
Do not use chemicals for allergies.
Mechanical methods using a tool are not suitable for asthmatics.
When using the thermal method, there must be a fire extinguisher in the room.
It is necessary to prepare a first aid kit, since the use of any tools increases the risk of injury. At hand should be iodine, hydrogen peroxide, plaster and bandage.
The room should not be children and animals.
It is better to wear special clothes that cover the whole body.

The choice of how to remove old paint from the walls depends on the tools, readiness for time and money, and safety requirements. In any case, it is better to prefer the least toxic and non-dusty methods.