How to remove old paint - the best ways to remove a layer of paint from walls, ceiling and floor (75 photos). Effective methods for removing old paint from walls How to clean the surface of paint

Often a person faces the need to remove paint from metal. Any coloring composition becomes unusable over time, rust can appear through it.

Sometimes paint spots appear on the surface of the product by accident. To cope with the task, you need to act carefully, following the advice of professionals.

From this article you will learn how you can remove the old one from metal at home.

Before you get started, you need to properly prepare. This complex includes:

When all preparatory stages completed, work can begin.

How to clean old paint off a metal surface?

There are three main ways to remove paint from metal:

1. Mechanical. The composition is cleaned by the application of physical force.
2. Thermal. The coating is softened using high temperatures, after which it is removed with improvised means (most often with a spatula).
3. Chemical. Use special washes and solvents.

Sometimes a combination of several methods is required.

How can it be removed mechanically?

The tools that are used to remove paint from metal surfaces are:

• drill;
• Bulgarian;
• grinder machine;
• putty knife.

The most important point is the choice of the correct attachment for the power tool. The priority is abrasive coatings.

Drill cord options:

1. Radial. They are used to remove paint in hard-to-reach places, such as inside a pipe.
2. Cylindrical. They are narrow, it is convenient to clean off the paint between the elements of heating radiators in the apartment.
3. Disk. They are suitable for cleaning flat surfaces.
4. Cup. They are used for rough work when a thick layer needs to be removed.

Wheel options for grinders and grinders:

1. petal circle. It is used when, together with the paint, it is necessary to additionally remove a layer of metal.
2. Cleaning circles from nonwoven fabric CD. They are suitable for gentle removal of the coating. The resulting scratches are easy to cover with a subsequent coat of paint.
3. Cibo cleaning wheels. These tips feature a smaller abrasive grain and thin nylon thread, so they work more delicately. It is these circles that are used if you only need to remove upper layer paint, without damaging the metal surface.

Using a grinder or grinder, you can remove paint from flat surfaces that are not difficult to access.

For working on corners, curves and fine details without manual labor not enough. To do this, resort to the help of sandpaper and a metal spatula.

Mode of application:

Mechanical cleaning is accompanied by the appearance a large number dust and chips. Therefore, it is imperative to protect your eyes with plastic goggles that will fit snugly to your face.

Heat treatment at home

The principle of this method is the removal of the coating by high temperatures. Under their influence, it begins to melt, making it easy to remove with a spatula or spatula.

Tools that can be used:

1. Building hair dryer. It is he who should be given priority when carrying out work.
2. Blowtorch. It is a source of open flame. Under its influence, the paint burns out. It remains only to clean it with a brush.
3. Iron. They heat the surface of the metal through some material, for example, through foil. In this way, it will be possible to work out only small surfaces. The method is considered the most time-consuming and inefficient.

Paint removal method:

After cleaning is completed, paint may still remain on the metal surface. It is removed with a solvent. It can be applied only after the product has completely cooled down.

It is impossible to thermally remove paint from cast iron, brass and aluminum radiators. It is forbidden to glow decorative thin-sheet elements, especially those that make up a composition with other materials.

How to quickly clean with chemicals?

What else to wash off the paint? The use of professional washes allows you to quickly get rid of the coloring composition, regardless of its type.

In practice, various solvents are used, among which:

1. Aerosol KUDO. The cost of 520 ml is 230 rubles.
2. Aerosol Veslee Remover. The cost of a composition with a volume of 450 ml is 180 rubles.
3. Wash Syntirol. For 1 kg of funds you will need to pay 470 rubles.

Mode of application:

All washes have a pungent odor, so you need to work with them on outdoors or in rooms with good ventilation.

How to remove from the gate?

To peel paint off metal gates, you need to perform the following algorithm of actions:

• remove all contaminants from the metal surface;
• walk through the gate with a grinder - the nozzle must be selected depending on the number of layers of paint;
• work out hard-to-reach places(joints, welds, loops) with a metal bristle brush;
• apply a solvent to the surface of the gate - this will get rid of the remnants of the coloring matter and degrease the metal.

After such cleaning, the gate will be completely ready for further processing.

If it was decided to remove the coating with a wash, then a thick composition is chosen: gel or aerosol. The gates are located vertically, so liquid products will drain from them and will not have the desired effect.

You need to clean the paint on a sunny day. Rain can cause work to stop.

Peculiarities of removing different types of paint and varnish products

Any paint can be removed mechanically, thermally or chemically, but sometimes some methods are more preferable.

paint type	Removal method
oily	A thin layer can be removed with any wash, for example, using acetone. A thick old layer requires mechanical cleaning. Most difficult sections burn out.
Acrylic	The paint responds well to solvents and washes. To improve the efficiency of work, the surface should be cleaned.
Powder	The most effective way to remove paint is to burn it out. If such a method cannot be applied to the product, then they resort to chemical means, for example, Fail-4 or Remover.
Aerosol (from a can)	You can get rid of such paint with sandpaper or a wire brush. For high-quality removal of the composition, the surface is treated with a solvent.

The most common mistakes

When removing paint from a metal surface the following mistakes should be avoided:

In order to avoid mistakes when performing work, you need to know what kind of metal the product is made of and what type of paint it is coated with.

Removing paint from metal you need to use the following guidelines:

1. Observe safety precautions. Hands, respiratory organs and eyes need protection.
2. Take care of cleanliness. Less dust will be generated if mechanical cleaning sprinkle the surface with water.
3. Do not overheat the paint so that it does not catch fire. It is possible to start applying a metal remover or solvent only after it has cooled down. Such liquids are flammable.
4. In order not to damage the surrounding surfaces, they are covered with matter.

You can enhance the wash effect if you create a steam effect. After applying the composition, the surface is protected with polyethylene. However, cellophane and wash should not come into contact.

Related videos

Video removal tips old paint and rust from metal surfaces:

Conclusion

To get rid of the paint on the metal, you have to make an effort. It is important to take into account the features of the product, its thickness, as well as the type of coloring composition..

Most often, you have to resort to a combination of several methods. This is the only way to completely clean the coating of old paint.

Making repairs in an apartment or house, sometimes it becomes necessary to remove the old paint. The coating, despite its age, keeps firmly and firmly. Exist different ways withdrawals.

How to remove oil paint from walls

They have great durability. Even the swollen paint, which is about to fall off, holds on tight. The choice of stripping method depends on several factors. So, how to remove from the walls oil paint?

When you need to remove oil paint from the walls

The need to remove the old coating arises when you need to level the walls with plaster, putty, paint, wallpaper or veneer ceramic tiles. This is necessary for the new coating to hold firmly. If the work is done on an old paint layer, the result may not last long.

Methods for removing oil paint

Methods for dismantling oil paint:

• Mechanical.
• Chemical.
• Thermal.

The best mechanical way

The mechanical method does not require financial costs but involves physical labor. Requires an ax to complete.

The method is suitable if, after removing the coating:

• you will level the walls with plaster;
• tiling.

This is due to the fact that the plaster and adhesive mortar have adhesion to a rough surface. Cleaning is chopping off the oil solution from the wall.

Operation instruction:

1. On the surface to be cleaned, notches are made with a sharp axe.
2. After that, the wall must be moistened with water using a spray bottle or a rag.
3. As it dries, the coating is peeled off with an ax. The tool needs to work at an acute angle.
4. After that, the surface is cleaned with sandpaper.

If work takes place in a room without ventilation, then the respiratory organs are protected with a gauze bandage.

The coating is also removed using a grinder or a drill with a special nozzle:

• With a wide abrasive wheel or a round metal brush - for a grinder.
• Brick crown - for a drill.

Thermal option: how to quickly remove a layer of paint

softens under high temperature. If the paint is heated, then it is easily removed with a spatula.

Instruction:

1. For heating, a building hair dryer is used. The desired area is heated.
2. The paint is removed with a spatula.

If you don't have a hair dryer, an iron will do. It is only necessary to heat the surface through the foil.

It is necessary to use this method in ventilated rooms, because when heated, harmful substances. In addition, despite the cleanliness of the method and speed, there are nuances: it cannot be used near electrical wiring and on surfaces that are afraid of heating.

In no case should a gas burner, blowtorch or other source of open flame be used as a heater - this is dangerous.

Chemical Remover: The Best Paint Remover

Designed for removing oil coatings special agent- wash. The composition includes chemicals and solvents. Under the influence of the wash, the paint softens and is taken in with a staple or spatula.

Chemical washer must be handled with extreme care because it contains harsh chemicals.

Instruction:

1. The wash is applied to the surface with a brush or roller in one direction.
2. After a certain period of time (which is indicated in the instructions for the product), the surface is cleaned with a tool.
3. If necessary, repeat the procedure. This usually needs to be done if the paint is applied in several layers.
4. When the work is finished, the mixture of paint and thinner must be disposed of.

Washing has a big drawback: there is a danger of chemical poisoning. Application of the product is possible only in a well-ventilated area or with a powerful hood.

The solution has a persistent odor, so until it completely disappears, it is not recommended to live in the room where the wash was used.

In addition to the above, the wash has a high price. Therefore, this method will significantly hit the wallet.

Safety regulations

When cleaning the surface of the paint and varnish material, you must follow the safety rules:

• It is necessary to ventilate the room, especially when using a chemical wash.
• Use personal protective equipment - a gauze bandage to exclude damage to the respiratory organs and mucous membranes. Protect your eyes from dust and paint particles. Use special gloves for hands.
• At thermal way carefully choose the surface, do not heat flammable surfaces and with electrical wiring.
• When working with a wash, strictly follow the instructions.
• Be careful with tools.
• If there is an open electrical wiring in the room where the work takes place, then the room must be de-energized.
• When using a ladder or stepladder, it is better to put rubber tips on the lower ends so that it does not slip.
• Clothing should be comfortable.
• Remove hair so as not to interfere.
• The room should be well lit.
• In the room where heating devices are used, it is forbidden to smoke and use open fire.

When it is impossible to remove oil paint from the walls

has durability. but is removable. If the paint is laid in several layers, then the procedure must be repeated until the coating is completely removed. Especially time-consuming process of getting rid of oil paint from concrete surfaces. The coating can be removed from any surface, you only need to stock up on strength and patience.

Special Moments

The chemical and thermal methods differ in speed from the mechanical ones. But, despite the laborious process with an ax, this method is one of the safest. By cleaning the surface in this way, no harmful and toxic substances remain.

In the event that you plan to refresh the paint, then removing it from the surface is not always necessary.

Removing the oil coating is a laborious process. Carefully consider the choice of method and follow the safety rules.

Useful video

Repairs in Soviet-style apartments often involve the removal of old paint, mostly oil paint. Yes, and it can be very difficult to remove a water emulsion that has been diligently kept for years. Plus, the surface is different, because, in Soviet time absolutely everything was painted - concrete, wood, plaster and even tiles ...

Why remove old paint

Whether or not to remove the old paint depends on what kind of finish is planned for this surface. If the owners want to paint the wall or stick wallpaper, lay ceramic tiles or apply decorative plaster, then the layer of old paintwork must be removed. Otherwise, the fine finish will simply begin to fall off over time. And if the walls are, for example, sheathed with plastic or drywall using lathing, then there is no need to remove the old paint.

Why remove old paint from the wall if, for example, plaster is to be applied? After all, it is possible to cover the wall with a primer and plaster? But everything is not so simple: the old paint does not have adhesion (adhesion to the applied material), which means that no coating applied to the painted surface will be durable. And if you also take into account that bacteria and fungus have accumulated on the surface over the years, and it is planned to live indoors with children or the elderly, then you definitely cannot do without removing the old paint.

How to remove paint: the choice of method and tool

In the world of repair, there is no specific and universal way removing old paint: the choice will depend on many factors:

• What specific surface was painted (wood, concrete or plaster walls);
• Type of paint - acrylic, oil, water-based or water-dispersion;
• Planned financial and time costs;
• Available tool (and growing hands correctly).

So, what kind of paint should be removed? If you do not take into account modern materials, for example, based on acrylic or latex, then most often you have to deal with the following types of coatings:

• paint based vegetable oils or drying oils (oil);
• Water emulsion;
• Water-dispersion.

Depending on the type of paint and choose a method and tool. If the type of coating cannot be determined, then you will have to experiment with different methods, which will take a lot of time.

How to remove old oil paint

Different surfaces are subject to coloring, which have different properties, most often it is:

• Concrete base (walls or floors);
• Metal;
• Wooden surfaces;
• Plaster;
• Drywall.

Oil paint does not have any adhesion to any mixtures and glue, so it is recommended to remove it in any case. Concrete bases are the most difficult to clean from oil paint. But with the tools and skillful hands everything's possible!

We will consider the following methods for removing old paint:

1. Mechanical - not the easiest, but more or less safe.
2. Thermal - for it you will need a special construction tool.
3. Chemical - the most unsafe in terms of the chemicals used.

What might be needed to remove old oil-based paint from a concrete base?

Perhaps it belongs to the most budgetary and affordable for any method of cleaning a concrete surface from paint, but also to the most time-consuming. The paintwork is scraped off the surface either with a spatula or other sharp tool (such as an ax or chisel). To facilitate the task, small notches are made on the concrete surface, and then everything is wetted with water. When the concrete base is a little wet, you can start scraping off the paint.

It is worth noting that since this method does not use any chemicals, it is the safest for health, however, you still have to wear goggles and a respirator.

Mechanical paint removal is perfect for small walls and for unventilated rooms. And here is the processing large surfaces will take a lot of time, and it may be worth paying attention to one more mechanical way- sandblasting with fine abrasive. Suitable for old walls and wooden surfaces. The paintwork is knocked off with a jet of air and fine-grained sand (or soda). The method is not cheap, it requires professional approach and the availability of special equipment, so our craftsmen rarely use it.

Often, a grinder with a special nozzle is also used, with which the surface with paint is processed. However, this method is the dustiest and dirtiest of all, and the effectiveness is controversial.

Removing oil paint using thermal treatment

For this method, you will need a special tool - a building hair dryer, which, by the way, is not available in every home. The difference between a building hair dryer and a regular hair dryer is that the blown air flow is much stronger and hotter. It is under the action of high temperature that the paint begins to “melt” and move away from the base. After softening the paint, it can be scraped off with the same spatula or scraper.

By the way, you can also remove old paint with a building hair dryer from wooden surfaces, for example, from old interior doors Soviet sample.

Another thermal method from Russian craftsmen: cover the wall with foil and “pass” with a hot iron.

The thermal method of removing paint has its own “contraindications”: it cannot be used if there are elements that can melt (for example, plastic) or electrical wiring. In addition, the pungent odor released when the oil paint is heated makes it necessary to use these methods in well-ventilated areas.

Chemical way to remove old paint

The name of this removal method speaks for itself: the old coating is removed from the surface using a special chemical agent either store-bought or homemade.

Attention! This is the healthiest way to remove paintwork, since all chemicals are poisonous and should only be used in a well-ventilated area and with tools personal protection.

It should also be noted that this method is one of the most effective, but expensive, and the removed paint will have to be disposed of in a special way.

To remove old oil paint, a special agent is applied to the surface in several layers with a brush or roller, and then removed with a spatula or scraper.

Paint remover can be purchased at a hardware store, but other "home" methods can also be used:

1. A solution of water, lime and potassium carbonate. Mix 2 parts lime and 1/3 part soda ash, dilute them in a small amount of water so that a paste-like consistency is obtained. Then a similar solution is applied in a thick layer on the surface for at least 12 hours, after which the softened paint is removed quite easily.
2. Treating a wooden floor with baking soda. This method is only suitable for an old wooden floor: wet the surface, pour a layer of soda ash, cover with burlap and moisten again with plenty of water. Leave in this form for a day, during this time periodically wetting the burlap. The swollen paint is then removed either with a scraper or a spatula.
3. Surface treatment liquid glass. The method is also not cheap: liquid glass is simply applied to the wall, and after drying it forms a film that is removed along with the paint. But you need to purchase such a tool in the store and it removes only one layer.

Whichever method you choose, do not forget about personal protective equipment: rubber gloves, a protective suit, a respirator (or gas mask), goggles.

Removal of water-based paint

Water emulsion is one of the few types of paint that are perfectly washed off with water, of course, not without effort.

In order for the paint to “leave” well from the wall, the surface is first wetted with water and left for 10 minutes. When the coating absorbs all the moisture, the old water-based emulsion is easily removed with a metal spatula.

At first glance, it can be difficult to determine that the wall is painted. water-based paint, but it is worth wiping it with a damp sponge, as traces of paint will speak for themselves.

How to remove water-dispersion paint

The water-dispersion composition is more resistant to moisture, and, therefore, it is more difficult to rub off with ordinary water. But even in this difficult matter, there are three ways to remove water emulsion from the walls:

• With water and a sponge;
• mechanically;
• With the help of pasting with newspapers.

With the help of water and draft

This method cannot be classified as effective, it all depends on the quality of the paint itself, and most manufacturers of paint and varnish coatings claim resistance to wet cleaning. But, nevertheless, it is worth trying to soak the water-dispersion paint on the wall.

To do this, warm water is abundantly applied to the surface, after 10 minutes the procedure is repeated. After the water is completely absorbed, you need to open all windows and doors to organize a good draft. By the way, you can also use a fan by directing a forced stream of air to the surface. Blisted paint can be removed either with a roller or with a brush.

Mechanical method and with the help of newspapers

One of the old but very effective ways removing water-dispersion paint is pasting the wall with newspapers. After the glue dries, the newspapers are removed, often along with a layer of paint. And unyielding places are easily processed with a spatula or sandpaper with a large grain.

The mechanical method is much more dusty and sometimes turns out to be ineffective - this is the use of a grinder with a wide range. However, this method is the dirtiest and dustiest, and after literally a minute of work, you will have to wait another half hour for the dust to settle. You can also clean the surface of the old water-based emulsion using a perforator with special abrasive nozzles.

How to remove acrylic paint?

Acrylic paint - modern paint material based on acrylic, which is easy to apply to the walls, dries quickly and practically does not smell. The paint is considered one of the modern ones and is easier to remove than oil or resistant water-dispersion paint. For removal acrylic paint you can use coarse sandpaper or a wire brush. If the paint is good and resistant, then you can resort to the methods described above for oil paint. However, if the painted surface is again covered with acrylic paint, then there is no need to clean it: good adhesion of acrylic paint to a similar one is one of the advantages of this decorative product.

Whatever type of paint stripping you choose, remember to wear personal protective equipment and do not work in poorly ventilated areas. Always follow the instructions on the packaging of the product or tool being used.

Removing oil paint from walls is a long and laborious job.

Anyone who has ever tried to clean walls from old paintwork knows how difficult it is to remove oil paint. Even if in some places it is swollen and falls off by itself, in some areas it holds so tightly that it cannot be affected by a scraper or an iron brush.

However, there are several ways to remove old oil paint from walls, and their choice depends on the further intended finish, your willingness to spend time or money.

And is it always necessary to do this? The question is very simple, as is the answer.

Let's start with - where can you find such a coating on the walls now? Unless in old apartments, in which the “Soviet” finish is still preserved: walls painted from below dark color and light (or whitewashed) on top. But it's not that important.

What is important is what you are going to do with them next:

• If leveled with plaster (see Aligning walls with plaster according to all the rules), puttying, tiling, painting or wallpapering, then it is imperative to clean off the coating, because building mixtures and adhesives will not “stick” to it, or the adhesion will turn out to be very unreliable. The result may be flaking of the new coating.
• If it is supposed to finish with drywall, clapboard, wall panels or any other materials attached to the batten, there is no need to remove the paint.

Therefore, it is advisable to make a decision on further finishing in advance, before removing the oil paint from the walls, spending a lot of time and effort. And even if it is necessary, the method of dismantling the old coating is also often selected depending on the type of new coating.

What tools are useful

The tool for removing paint from the walls is used very different. That is, everyone can find what will ideally fit his budget and the situation as a whole.

Depending on the type of paint and how it is removed, the following materials and tools may be needed:

• Building hair dryer - they are useful for thermal method;
• Electric drill;
• A spatula or scraper is a universal tool;
• Water;
• Personal protective equipment such as gloves, respirator.
• The liquid with which the varnish is removed, well, brushes or a roller to it. With such a tool, you need to be extremely careful, as it can be toxic and cause allergies.

Methods for removing oil paint

Each method described below has both advantages and disadvantages, including one common one: in any case, you will need a lot of time and effort.

Mechanical

Physically, this method is the most time-consuming and long, but it does not require financial costs and does not harm health. The main tool of labor is an ordinary ax, which will have to be wielded with your own hands. This requires considerable physical strength.

This method is ideal if:

• After cleaning, you will level the walls with plaster;
• Or tile it.

Both plaster and adhesive solutions they adhere best to a rough surface, and after processing with an ax it becomes just that. The essence of cleaning the wall from the oil coating is that it is literally cut down from the surface.

It is done like this:

• First, frequent notches are made with a sharp ax over the entire area to be cleaned.;

• Then the wall is abundantly wetted with water using a spray bottle or a wet rag;
• When the water is absorbed, the coating should be cleaned off with the same ax or hammer and chisel., holding the tool no longer at a straight line, but at an acute angle to the surface.

Advice. It is better to wet and clean small areas so that the water does not have time to dry.

This method is also chosen if the work is performed in a room without ventilation, which cannot be actively ventilated. Quite a lot of dust is formed, but a regular gauze bandage will help protect the respiratory organs from it.

Chemical

Removing paint from walls is physically much easier than chopping it down (see How to Remove Paint Effortlessly). And faster. And this is quite feasible, since there is a special tool for removing oil paint from walls, and more than one. It is often referred to as a flush.

In its composition, it contains acids, solvents and other chemicals that soften the coating, which is then easily removed with a spatula or metal scraper.

As you already understood, the washing process is not at all like removing dirt from the surface with water and a rag, since the solution is very aggressive, and you need to work with it strictly following the technology:

• The solution is applied to the surface with a roller or brush in one direction;
• After the specified time, when the coating becomes soft, it is removed along with the applied product with any convenient tool;

It is very convenient to work with a metal spatula

• The procedure sometimes has to be repeated in order to achieve the desired result. As a rule, repeated washing is necessary if the paint is applied in several layers;
• At the end of the work, the paint-solvent mixture must be disposed of, preventing it from entering the ground or domestic sewage.

The biggest drawback of this method is the danger of poisoning with volatile substances or getting a serious burn of the skin and mucous membranes. Therefore, it can only be used in rooms with a powerful hood or with the possibility of good ventilation. But even in this case, the smell can last for quite a long time, so you can’t live or just stay indoors for a long time during the repair. Especially for children and people with health problems.

Advice. To protect yourself, work should be done in a respirator, protecting your eyes with special goggles, and your hands with gloves. It is also desirable to be dressed in a suit with long sleeves and trousers.

The second serious disadvantage is the high price of the product, which significantly affects the wallet if a large area is to be processed. In addition to ready-made chemicals you can use less dangerous substances: lime, soda ash, liquid glass.

Their use for walls is difficult, but oil paint can be removed from the floor without problems:

• It must be moistened with plenty of water, covered with a continuous layer of soda and covered with sackcloth for a day, constantly wetting it during this time. The next day, the swollen paint will be easily removed with a spatula.
• Quicklime, which is mixed with soda ash in a ratio of 3: 1, will help speed up the process. a thick gruel is also applied to the surface and kept for 12 hours.
• But the walls can be smeared with liquid glass and let it dry. When this happens, the resulting silicate film will be removed from the surface along with the old paint.

Thermal

Oil paint softens not only under the influence of chemical reagents, but also under the influence of high temperature. If the coating is well heated, it can be scraped off with a spatula. You can do this with a hair dryer.

The work in this case is carried out simultaneously: a small area is heated and immediately freed from the paint until it hardens again.

Cleaning with a hair dryer

In the absence of a special tool, you can use an ordinary iron, heating the painted surface through the foil.

It is important. The method cannot be used in areas with electrical wiring, as well as on surfaces that are afraid of heating (plastic, PVC).

The heating method could be considered the cleanest and safest if the paint did not release toxic substances when heated. Therefore, as in the case of the wash, the instructions allow its use only in ventilated areas and subject to the use of respiratory protection.

But you can’t use a blowtorch, gas burner or any other source of open fire to soften the paint - this is a fire hazard. Especially if the base under the coating is wooden.

Mechanized

Mechanized methods speed up the process, but create a lot of dust and dirt. Therefore, here it is worth recalling the need to use a respirator or gauze bandage on the face.

As the main tools, a grinder or a drill with special nozzles is used:

• Nozzles for grinders - a wide abrasive wheel or a round metal brush. To reduce the amount of dust, it is recommended to take an assistant with a vacuum cleaner if it is not possible to use a specialized tool with a built-in vacuum cleaner.

• On a drill or puncher, you can fix a crown on a brick.

• Another tool for removing paint is a paint stripper chain, also attached to a drill. If it was not possible to find it, you can use any chain with thick links (at least 5 mm in cross section). There should be an odd number of links: 11, 13 or 15, so that after fixing the central link, the length of the chain on both sides is the same - for balance. For the same reason, if the links are damaged on one side, they are removed from the other, until there are three of them left on each side. In this case, the chain changes to a new one, since working with a short one will be inconvenient and traumatic.

Note. If you are right-handed, the drill with the chain should turn to the left, if you are left-handed, to the right.

Conclusion

Thermal and chemical methods Cleaning is less laborious, moreover, they avoid serious damage to the surface of the base and save later on leveling solutions. But they are also the most dangerous to health. Therefore, think carefully before choosing any of the proposed methods.

Perhaps the video in this article will help you with this.

ABOUT one of the most "sore" issues that arise during cosmetic and overhauls- how and with what to remove or remove old paint. The task is not easy, because when creating new types of paints, their manufacture, the task of the developers is exactly the opposite - how to make the paint more stable and durable. However, there are ways to clean old paint from surfaces, and we will talk about many of them below.

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Video version of the article

Let's start with removal, removal from various surfaces coatings from oil (alkyd) paints. There are three ways in which this problem is solved: thermal, mechanical and chemical, as well as their various combinations. The most common of these methods is thermal, with partial use of mechanical cleaning.

Thermal method of removing old paint (by heating)

This process is carried out as follows: the old paintwork is heated to a softening temperature and in this state it is scraped off with a steel spatula. The coating is heated using blowtorch, gas burner or industrial hair dryer.

The thermal method is simple, effective, but has its drawbacks and limitations. For example - it will not be possible to remove paint from plastic, since most plastics begin to deform already at two hundred degrees Celsius. In addition, the use of devices that create a jet of hot fire is not always safe. In enclosed spaces, another factor comes into play that limits the use of the thermal method - the release of toxic substances from paints when heated.

A big disadvantage of the thermal method of cleaning old paint is also the fact that it can be used to clean far from any surface, even heat-resistant. It is not very effective when cleaning massive metal surfaces.

If the question arises of how to remove old paint from wood, then heating is indispensable, especially when wooden product covered with paint long time, layer by layer. When heated, such a thick layer swells with bubbles and is easily peeled off, leaving a clean surface suitable for a new painting without any additional preparation.

The technology for applying thermal cleaning of paint is simple: with one hand they hold a heating device, directing a flame or hot air to the surface, moving the jet as the paint softens, and with the other hand, along the way, they clean off the softened paint with a spatula. The skill of working simultaneously with both hands is developed literally in ten to fifteen minutes.

There are also attachments made of metal chains, often homemade, for removing paint with a drill - this method is crude, but often convenient.

In addition to these tools, there are more specialized devices - surface grinders and cleaning mills. The latter are effective in removing paint from plastered, stone, concrete and other similar surfaces, but are unsuitable for metal.

Surface grinders for cleaning oil compositions are ineffective, because sandpaper quickly becomes unusable, clogged with paint, but sometimes, especially if high-quality processing of small areas is necessary, they are not replaceable. In addition, they are well removed most water-based compositions.

The technology for cleaning old paint with a power tool is even simpler than with a thermal method: working part the tool is pressed against the surface to be treated and, as the desired degree of cleaning is reached, it gradually moves.

Another tool that will help in removing old paint is a perforator. With the help of a wide nozzle-shovel, often homemade, you can remove old paint from concrete foundations, knocking it down with a perforator. Flaw this method The fact is that along with the paint, the base itself can be damaged, so this method is more suitable for removing paints from durable concrete. Together with paint, putty and plaster are well removed in this way, with → .

Sandblasting method of removing, removing old paint

Another common method of mechanical cleaning of old paint is sandblasting. The principle of sandblasting is that a jet of air or water is directed to the surface to be cleaned under high pressure, into which abrasive particles are added (most often ordinary sand). Sand grains, hitting the surface at high speed, perfectly clean it not only from paint, but also from rust, from various other persistent contaminants.

The disadvantages of the sandblasting method include the relatively high cost of equipment and the need for certain skills to maintain the fixtures and produce the work itself.