A hot air gun as a paint cleaner

So, the first thing that was tried in this direction was a technical hairdryer. I have an inexpensive MAKITA hair dryer, model HG5012K 230V. Industrial hair dryers differ mainly in the level of heating.

This is what a technical hair dryer looks like. very similar to the usual one with which you dry your hair, but don't do it :)

This cleaning method proved to be very time consuming and laborious. In addition, you cannot remove the old putty with a hairdryer. If you need to remove paint from an entire wall, for example, 4 squares, then this operation with the help of a technical hair dryer becomes really difficult. After several attempts, I abandoned this venture and realized that it is possible to use a technical hair dryer to remove paint only in small volumes on areas within a few square centimeters. I tried various attachments - it did not bring tangible results.

Hairdryer attachments included.

Using a hand scraper to clean the paint

Another affordable option- this is the use of a hand scraper, but it is not always possible to scrape off an old, no joke fifty-year-old paint with an oil putty. Some part of the paint, a very small area, was scraped off with a scraper. After a couple of hours of poking around, it became clear that this was also not effective method removing old paint. A scraper can effectively remove lime and even putty, but cleaning hardened Soviet paint becomes just torture.

The green scraper with replaceable blades sucks. The one with wooden handle turned out to be much better. With this scraper, the ceiling in one of the rooms was cleaned of putty, but not the paint.

Angle grinder or grinder as a tool for cleaning paint

For those who have a grinder or as it is called angle grinder, they can try to remove the paint using various attachments and grinding the required surface.

Here is a brush cut from hard steel wires. At 10 thousand revolutions, it begins to spark and scatter fragments of hot metal.

When using such a nozzle, everything flies to the sides. Do not try to take too large - you will break the grinder. If you have already decided, then it is better to take a nozzle with a small diameter. So you will protect yourself and the grinder will not get out of your hands. As a result, the nozzle was not effective for me, or I do not know how to use this brush.

A special grinding wheel equipped with 80 sandpaper. When used, it heats up to the point of fire, but removes the paint soundly.

The only thing: when buying such a circle, pay attention to the graininess of the skin. I do not advise taking less than 40, it will wear off quickly, but clean slowly. Personally, I have not found such circles with a grain of P40, so I tried it with what I have. Another negative point- a lot of dust. Prepare a respirator and safety goggles.

Another type of abrasive. The nozzle has a rough surface, on which round-shaped emery sheets are attached with Velcro.

Sheets are erased quickly, and after one, as you can see, the nozzle is erased. You will not notice in time that the circle has worn off, the nozzle itself goes into battle :) It is unlikely that it will be possible to quickly grind the paint with such a device. If you buy abrasive sheets for it or just sandpaper, then buy the maximum thickness.

The wall was sanded, but it turned out to be difficult to remove the paint with such a thing. In some places it can be seen that the abrasive has penetrated to the concrete.

And this is my battle grinder angle grinder Metabo. It helps a lot when cutting strobes in walls for wiring, cutting metal and in general in life.

Using a drill or puncher to remove paint from the walls.

If you have a powerful drill, you can try the paint remover for the drill.

Drill attachment for attaching abrasive sheets. Fixation is due to the Velcro. To be honest, this is complete nonsense and in fact such a nozzle turns out to be useless. Never buy one.

You can try this brush. The removal process turns out to be quite effective and of high quality. The surface cleans well, but don't think that you can clean even a quarter of a square meter in an hour with such a brush. Suitable for those who have a lot of time.

Hammer drill owners are more fortunate than their neighbors. Thanks to a specially designed spatula nozzle, you can quite successfully beat off a layer of old paint along with a layer of putty and plaster and concrete :). A square meter per hour is quite real. I think the neighbors hated me because I hammered for 2 hours on Saturday.

The attachments were purchased immediately after purchasing the hammer drill. Such pribluda are inexpensive, 100-200 rubles each.

I tortured my neighbors with this attachment and tested their patience, but no one seemed to come running to complain. All reacted with understanding.

I note that the wall after using the punch becomes very impartial, but it completely removes the paint, and then you can re-plaster and putty.

On the wall, grooves were previously made for sockets and switches. As a result, the wall generally turned into a terrible concrete mess. In one of the next posts I will show you how I plastered it.

Alternative ways to remove old paint

And now about alternative ways cleaning walls from old paint. Found on YouTube videos of another "Kulibin". The man made chains in the form of chains. With the help of such a nozzle, he beats off the paint and it looks like it turns out quite effectively. See for yourself:

By the way, this paint was purchased and tested.

In the following video, you can watch other types of old paint removal.

And this is a milling machine.

That's all. Good luck with the renovation.

Getting rid of unnecessary paint on the walls is a difficult task. You have to deal with it often, since for a long time in our country it was a favorite (due to its cheapness and availability in stores) finishing material... Most of all problems are caused by She is very persistent and difficult to remove. In this article we will try to figure out how to remove old paint from the walls, and what compounds are best used in this case.

What determines the complexity of the job?

The severity and duration of the process will depend on:

• paint composition;
• the number of layers applied;
• the surface on which it was applied.

Oddly enough, it is easiest to produce and remove paint at home if it is applied in several layers. The most difficult option is a coloring agent on a surface that has not been previously plastered or applied to concrete.

Ways to get rid of old paint: safe and not so

For each surface, a different product is suitable. Today there are several options for how to remove old paint from the walls:

Method of chemical action;

Mechanical;

Heat treatment;

Electromechanical method.

How to use chemical action to get rid of old paint on the walls?

This method is to cover the surface with removable paint special composition... Wait for the recommended time and clean the wall. There are various types of paint stripper. For example, liquid glass, quicklime and even soda ash.

On the one hand, everything is simple: apply the product, wait and clean. But this method has several not very pleasant properties. This is, first of all, high toxicity. chemical compositions... This method is not very effective with a thick layer of paint, besides, such compositions work well with powder paints, oil paints may not succumb.

The surface treated in this way requires mandatory washing, and more than once. When working, it is imperative to use special protective clothing, to protect the face and hands from the harmful chemical composition, since the paint remover is very aggressive against the skin and mucous membranes. While working with such means, it is necessary to remove people who are not engaged in repairs, flowers, animals from the premises. The room in which the work is carried out must be constantly ventilated.

When cured on the paint, it forms a silicate film, which can be easily removed together with old paint.

And they will help get rid of the paint when minimal costs time and effort. 400 grams of baking soda should be mixed well with 1400 grams of lime and applied to the wall. After twelve hours, the wall will be easily cleaned.

How to remove old paint from walls using high temperatures?

Heat treatment consists in heating the old paint blowtorch, an iron or a hair dryer. Under influence high temperatures the paint composition softens and is quite easy to remove. The main thing is to warm up the surface well enough.

In the case when not or you can use the iron. You need to warm up the paint through a sheet of foil or a tin plate. The loosened layer can be removed with a spatula. Experts, despite the simplicity of the work, do not recommend using this method, because:

There will be a strong smell in the room (you can get poisoning);

You can melt decorative elements (plinths, panels, polyurethane stucco molding etc.);

There is a possibility of damage to the electrical wiring.

The method is far from the best. You can use it if the room is small or you need to remove the paint from small area walls or ceiling. As in the previous method, you need professional tools protection.

Mechanical method

This processing option is considered the safest and most affordable. Although it is quite laborious, it justifies itself in this case. Especially if it is wooden wall, the paint is old oily, and the room is poorly ventilated.

The main tools that will be required to clean the walls: scraper, putty knife, cutting tool, water or a special non-toxic composition. The initial stage of work is the application of incisions. Then the surface is moistened with water, a non-toxic paint remover is also suitable for wall paint so that it is well absorbed. When the surface of the substance to be removed has cracked, you can take a scraper or spatula and start removing the paint.

The work is progressing slowly and difficult, but safe. That is why this method is very popular.

How to remove old paint from walls using electrical appliances?

A method for machining painted walls. Cleaning is done using a grinder with a special attachment or drill. An excellent result can be obtained with a wide circle or a nozzle with stiff bristles on a grinder or hammer drill.

The method has only two drawbacks: noise and dust, or rather, its immense amount. Many repair crews use this particular method to clean walls from stained substances. Although it should be noted that during indoor areas this method is rarely used. It is more suitable for outdoor use or for partial surface treatment. Today there are devices with built-in vacuum cleaners that capture up to 95% of flying dust. A drill or grinder requires personal protective equipment, especially a respirator and special glasses.

Features of the removal of different paint formulations

Water-based paint is best removed with a spatula, no matter if it is a wooden wall or concrete. The solution will help the process: dilute 10 ml of iodine in a liter of water. Mix well and apply to the wall.

You can use a metal brush. It will leave microcracks on the paint, which, if moistened, warm water, will help to easily remove the paint in 15-20 minutes.

There is, so to speak, folk remedies... For example, stick newspapers on the walls. It is believed that when they dry, they will easily come off along with the paint. Those who tried this method say that they had to rip off newspapers, and then only paint ...

Acrylic paint with wooden surfaces can be easily removed with sharp devices: a spatula, chisel or knife. It can be removed from glass or plastic with a hot soap solution(you can add a few drops of alcohol).

Oil paint is removed either with a spatula or with a special paint scraper. You can use sandpaper... It will help in small areas.

There are many ways to remove paint. You just need to choose the right one and you can act! It doesn't matter what it will be - old grandfather's method using serifs and water, or using the latest tools and chemicals. The main thing is not to forget about personal protective equipment and the rules for performing such repair work.

Sometimes there comes a time when you realize that the time has finally come for changes and creative solutions. And now we have almost decided on redecorating... And it would also be nice to paint window frame in country house and refresh the walls with a new color.

But here, on the threshold of a new life, the most "painful" question of all repair undertakings arises - "how to remove the old paint." After all competent preparation surfaces are 90% of success.

This is not an easy task, since paint developers have exactly the opposite goal - how to make it as sustainable as possible. Therefore, so that seven sweats do not go away when removing the worn-out layers of paint, it will be useful to familiarize yourself with this article.

To remove or not to remove - that is the question!

Before proceeding to the action, it is necessary to answer a trivial question - is it worth removing the paint at all or is it possible to restore the surface on top of the painted layer?

It all depends on what you plan to do next. If you need to sew up the wall with drywall, the paint can be left on the wall. In all other cases, you still have to remove it, otherwise the joy of the repair done will not last long.

Now about the main thing ...

There are three main ways to remove paint: heat, chemical solvent, or mechanical action. Be prepared for a lot of physical effort and a lot of patience.

Removing paint by heating

A building hair dryer is widely used to remove old paint or varnish. It can be replaced with an iron (in this case, you need to warm it up through foil).

Once the paint has softened, you can easily remove it with a spatula. This method is most effective if the surface is wooden. It is also good for applications where gentle vibration-free cleaning is required, such as furniture or window frames.

However, in a number of situations, the use of a hair dryer is either impractical or impossible:

• if there is an electrical wiring nearby;
• if the paint is applied to concrete or plaster;
• if on the surface there is decorative coating, unstable to high temperatures.

When the paint is heated, harmful compounds are released. This means that you will need to take care of protective equipment and ventilate the area well.

Application of chemical solutions

Alternatively, you can apply chemical wash... First, the composition is applied to the old coating and kept for some time. After that, the surface is cleaned with a scraper or washed with water (if the paint has dissolved).

This method has one obvious drawback - high toxicity. In addition, you need to remember about a number of features:

• select a solvent depending on the type of paint and surface;
• strictly follow the instructions;
• if the paint is applied in several layers, each of the layers will have to be removed separately.

Mechanical stripping

Mechanical paint removal can be accelerated with a power tool. Of course, no one bothers to use a spatula, scraper, sandpaper or ax, but these methods are very time and effort consuming.

Further we will consider possible options... Each has its own pros and cons. The grinder removes paint well, but it is very dusty. LShM is effective for water-based paints, but copes worse with oil. The final choice is yours.

Safety first

Whichever method you use, do not forget about protective equipment (glasses, gloves, respirator or gas mask). Toxic emissions from heated paint, chemicals and abrasive dust can be very damaging to your health.

After the paint has been successfully removed, you can safely proceed to puttying, priming or painting surfaces.

Removing paint from walls or metal surfaces, as well as removing rust, takes a lot of effort and time. Therefore, it is sometimes impossible to do without the use of a power tool. As a device to facilitate the process, you can use a corner grinder(grinder) with special cleaning nozzles.

Old paint most often has to be removed from either walls or metal surfaces. In each case, apply different types grinder attachments.

From metal surfaces

For roughing work on metal, whether it is removing a layer of old paint or removing rust, craftsmen use corsets... They look like a brush made of twisted or non-twisted metal wire inserted into a metal glass, or a disc made of the same wire.

Craftsmen who have used brushes for roughing metal work can hear complaints that small pieces of wire are flying off the nozzle and digging into clothes.

Depending on what kind of roughing work you want to carry out, the thickness and rigidity of the brushes are selected. It should be borne in mind that the metal wire used in brushes leaves scratches on the surface to be treated. Therefore, for removing paint, for example, from a car body, it is better not to use them. They can only be useful for removing rust and paintwork from hard-to-reach places.

For metal-friendly roughing it is better to use special discs made of silicone carbide fibers (XCS) - they are usually black. Also for these purposes, Clean and Strip discs, which are more resistant to wear, are used. They are blue, have a similar structure, but are composed of nylon threads.

This grinding wheel is available in 2 versions: for a drill and for a grinder. Distinctive feature it from other types of nozzles for removing paint from metal in that it does not clog and does not damage the metal in the form of scratches. They also successfully remove welding spatter, rust, various sealants and anti-corrosion coatings.

Clean and Strip discs have good wear resistance and can be used until completely wiped off.

Often they use petal nozzles for the grinder. They represent a disk with sandpaper in the form of petals glued to its plane.

For rough surface treatment, use nozzles with large size grains. For finishing works it is necessary to select a grinding wheel with fine sandpaper. Although this sanding disc wears out quickly and becomes clogged with residues removed paint, it can be restored quite simply. How this is done can be understood from this video.

From the walls

First of all, in order to remove paint from the wall, craftsmen try to use brushes with thick twisted wire (discussed above). This method is quite effective, but when roughing a lot of dust is generated... Therefore, it is necessary to use protective equipment (goggles, respirator). It is also recommended to use a vacuum cleaner with special nozzle completely hiding the corset.

In addition to removing paint from the walls, using angle grinders, you can remove a layer of old plaster, primer or putty

To remove paint from concrete walls also apply bowl nozzles... The grinder must be held at such an angle that the paint layer is removed, but the tool does not deepen into the wall.

In addition to roughing work, this nozzle is also used for leveling surfaces, removing various sagging on the wall, for removing plaster, putty, etc.

Sharpening discs

This category of discs is intended for rough work for metal... The sharpening disc can be used for stripping welds, chamfering cut metal parts, as well as for sharpening tools (drills, chisels, etc.) if there is no grinding machine nearby.

It is worth knowing that when installing such a disc, the revolutions on the grinder must be set to the minimum or not exceeding the values ​​indicated on the abrasive wheel.

As a rule, grinding wheels are more often used on small grinders, since they are more convenient to use for cleaning metal.

The grinding wheel can be distinguished from the cut-off wheel by its thickness (at least 5 mm) and by the presence of a recess in the center for more convenient use of the plane of the wheel for sharpening the tool.

Mechanical cleaning of the surface from paint is the simplest and most technically affordable way removing the old coating. A wide arsenal can be used to remove paint technical means... For example, you can work with a paint scraper. Faster and effective method paint removal consists of the use of electrical equipment.

Features of mechanical cleaning

It is not always necessary to delete old layer paint before applying a new one. Much depends on the properties of both the old and the new paint and varnish composition. If adhesion can be achieved without removing the coating, there is no need to spend effort on mechanical processing material. The best adhesive qualities are possessed by water-based compositions that can adhere to almost any surface.

If reliable adhesion of materials cannot be ensured, removal of the old coating cannot be avoided. You will also have to remove the old paint if you plan to level the surface, since the leveling mixtures practically do not stick to the painted materials.

It is not difficult to establish a type of old paint: just try to pick off a piece of the coating. Water-based paints and varnishes are split off quite simply. Oil paint will be more difficult to remove.

In terms of labor costs and the choice of the right tool, great importance has a definition of the material from which the base is made. For example, removing paint from sandy plaster is an easy task, but removing the coating from concrete is much more difficult.

Surface preparation

Before starting to remove paint, it is necessary to prepare workplace... The nearby space will be heavily littered during work, so we do the following:

1. We remove all furniture from the room;
2. If some items are too large and cannot be taken out, cover them with polyethylene;
3. Covering the floor plastic wrap, but not just lay it out on the surface, but attach it to the baseboards with tape.
4. We put on a respirator, goggles, rubber gloves and an apron.

Types of tools

Mechanical cleaning can be carried out by two types of tools: manual and electric.

TO hand tools relate:

• scraper;
• putty knife;
• axe;
• a hammer;
• chisel;
• chisel.

Applied electric tool:

• grinder with a corresponding nozzle;
• puncher;
• construction hair dryer;
• electric drill.

The greatest effect is obtained by using a power tool, especially a grinder (grinder) or a hammer drill. Both tools can be equipped with several types of attachments, including:

• wire brush;
• grinding wheel;
• abrasive;
• scapula;

Below we will talk in more detail about the features of the use of some types of tools.

Hand tool

The following types of tools are most commonly used to remove paint:

1. Axe. This well-sharpened tool creates notches on the paintwork. Then the formed depressions are abundantly moistened with water, which, penetrating into the coating, softens it. Swollen, flaking paint can be easily removed with the same ax.
2. Hammer and chisel. The easiest, but also the most time consuming way to remove the old coating.
3. Scraper. This is manual fixture often used to remove paint. However, if there are several layers or we are talking about an old thick coating based on oil paint, the scraper will not help, and more advanced methods will have to be used.

Electric tool

The use of electrical equipment significantly reduces labor costs and time spent on work.

angle grinder

LBM (colloquial name - Bulgarian) allows you to remove the paintwork through the use of special nozzles. The attachment is a brush with very hard metal wires. In working order, the grinder circle develops a speed of up to 10 thousand revolutions, which ensures high-quality paint and varnish removal.

Advice! Do not take too large a nozzle, as there is a risk of breakage of the grinder. In addition, it is not safe to work with a large attachment. Better to get a small attachment.

You can also opt for grinding wheel with emery. The abrasive is attached to the nozzle using special velcro. The optimum grain size of the skins is 80, but not less than 40, since fine-grained emery is quickly erased. The abrasive allows you to remove paint even with concrete surfaces... However, working with emery is fraught with ignition of this abrasive material.

Note! When working with a grinder, it is imperative to use protective glasses, since pieces of the removed paint and varnish material fly around at high speed at high speed.

Perforator

This type of electrical equipment does an excellent job with mechanical removal old or fat paints and varnishes, but has a very important drawback in some situations - high noise.

The device is equipped with a special nozzle - a spatula that allows you to beat off not only paint, but also a layer of plaster. Moreover, if you work carelessly, then you can damage the base - even silicate brick or concrete. The performance of the hammer drill depends on the complexity of the site, but on average, approximately square meter or one and a half hourly.

Electric drill

To clean the surface of paint, you can use an electric drill with an abrasive attached to it. Emery sheets are attached with Velcro. However, the method is not efficient enough.

Building hair dryer

In this case, the principle of operation is based on heating the coating, as a result of which adhesion is disrupted and the paint begins to flake off. Moreover, it is necessary to remove the paint and varnish layer immediately (with a spatula or scraper), without waiting for it to cool, otherwise it will be even more difficult to remove the paint in the future.

Note! When working with a hairdryer, you need to keep in mind the following circumstance: you need to know exactly where the wiring is located so as not to heat such places.

Working with a hairdryer is a very laborious process. Yes, and a layer of old putty cannot be removed that way. Building hair dryer- this solution is more likely for a small area, but on large spaces it is better to work with a punch or grinder.

Mechanical cleaning is used both as an independent method and as an auxiliary one. Even in the case of using chemicals, a spatula is used, and if the paint is too old, then an electric tool may well be needed.