How to remove old paint from walls?

Different types of coloring materials are removed from the walls in different ways: one - more or less easily, others - are able to confound even a painter with experience. Much depends on the surface on which the color composition is applied, and on the variety of the paint. This article is devoted to different ways to remove paint coating from walls, their advantages and disadvantages, as well as safety measures at work. So, how to remove the old paint from the walls?

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Remove the paint from the wall or still leave it?

Staining of walls in the kitchen and in the bathroom using oil compositions was common during the Soviet period. Many are faced with the problem of removing the old coating from the walls, for example, before installing ceramic tiles. Do I need to remove the coating or can I mount above the painted surface?

Much depends on the chosen work technology:

1. If you planned to use drywall sheets to sew the wall - the painting layer on the wall does not hurt.
2. Completely different in the case of ceramic tiles. The painted surface has almost zero adhesion to cement plaster or tile adhesive. Therefore, you have to remove the paint.

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Choosing the optimal method of removal

The following factors influence the choice of this or that method:

• The type of the painted surface. For example, the task of "how to remove paint from a concrete wall" is considered one of the most difficult.
• The type of paint, the number of layers and the strength of its adhesion to the surface.
• Financial opportunities.
• Availability of tools.

Important! There are three main types of paints that are used in construction work: oil, acrylic and water-emulsion. The most difficult, as practice shows, is removing oil paint from concrete.

What tools do you need?

Depending on which paint removal method you have chosen, you may need a set of materials and tools:

• Spatula, wide chisel or scraper made of metal.
• Roller, brush.
• This type of paint removal fluid.
• Ax.
• Electric drill with nozzles.
• Construction hair dryer.
• Bulgarian.
• Water.
• Personal protective equipment: tight gloves, respirator, safety glasses.

All methods of cleaning surfaces from paint are divided into 3 categories.

• Chemical.
• Thermal.
• Mechanical.

Consider each of the methods in more detail.

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Chemical method

So, how to remove paint from the wall, using chemical agents?- There is nothing complicated in this process:

1. Using the instruction, prepare a chemical compound to remove the coating.
2. Using a paintbrush, apply it to the surface - it is advisable to move in one direction. You can also use a paint roller.
3. Then you need to wait a little, so that the paint softens.
4. It only remains to remove it with a spatula, a metal brush or a metal scraper.

Important! The method is fast enough, but the unpleasant odor remains for a long time. Difficulties can arise if the staining was performed in several layers. In this case it is necessary to smear the walls with a solution 2-3 times.

Cons

This method has a number of drawbacks:

• High toxicity.
• Presence of persistent unpleasant odor.
• If a solution gets on the skin, a chemical burn may occur.
• Big financial costs.
• The need for special disposal of the solution. Pour it into the sewerage in no case it is impossible.

Precautions

If you prefer this particular method, do not forget about the safety rules:

1. Use chemical reagents only in a room that is well ventilated.
2. Work only in personal protective equipment.
3. Make sure that pregnant women, pets and children are not in the room.

Important! There are also several national recipes that are also suitable to remove the old paint from the walls, and no less effective than the modern expensive washings:

• To remove the color coating use a mixture of lime and potassium carbonate( 1200 grams of quicklime, 400 grams of potassium carbonate(calcined soda) Dissolve the ingredients with water until a thick mass is produced Apply the compound to the walls and soak for half a day
• If you are thinking how to remove the paint from the wall in the kitchen or in the bathroom withth oil paint can be removed with liquid glass. The surface is lubricated and allowed to dry completely. The silicate film exfoliates together with the pieces of coating

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Thermal method

This method of removing paint from the walls involves the use of a construction hair dryer. The surface is heated and the painting layercan be cleaned with a scraper or spatula

If there is no hair dryer, you can iron the wall with a hot iron through a sheet of foil.

Important! The method can not be used in places where electrical wiring passes. The thermal method is ideal wherever vibrations and shocks are unacceptable.

An essential disadvantage of the method is an unpleasant "chemical" odor when heated. In addition, toxic substances are released into the air. For this reason, the room should be carefully ventilated and do not forget about the use of personal protective equipment.

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Mechanical method

Its advantage is the absence of toxic substances. The mechanical method is rather slow, it is very labor intensive, but it is safe and does not involve large monetary costs. In order to remove the old paint from the walls, you need an ax, water and muscular strength.

The procedure is as follows:

1. Make a notch on the wall with an ax.
2. Drizzle the wall with water.
3. Wait for the water to soak, and start cleaning the paint again with an ax blade.

Important! For faster and more efficient work, experiment a little, choose the optimal slope of the blade.

Mechanical removal of paint from the walls is used if the walls are to be tiled with tiles, as the adhesion of tiles with a nonsmooth surface is best.

Important! Despite the high laboriousness of the method, it is fully acceptable for small areas and premises that are poorly ventilated.

Mechanized mechanical method

To reduce the laboriousness of work, and consequently - to increase its productivity, you can use a bulgarian with a wide range. The drawback of this method is that a huge amount of dust is formed during operation. The problem can be solved if you use a modern device equipped with a built-in vacuum cleaner.

There is a way of relatively easy removal of old paint from concrete - use chains as attachments to a drill. However, work must be done carefully, protecting yourself from mechanical damage. Dusting with chains is minimal, as the paint flies off.

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How to remove different paints from the walls?

All of the above methods will help to cope in the most difficult case - removing old oil paint from concrete. But along with such paint and varnish materials, lighter solutions are used.

Features of removing acrylic paint

For removing acrylic coating, you can use a metal brush or even a skin with a large grain size. The work is completely manual, so do not forget about gloves.

Important! If the paint is of high quality, then removing it from the surface will not be so easy. Therefore, you can try the already described in this article means for removing paint from the walls. If you plan to cover the wall with acrylic paint, then removing the old cover is not worth it. A new layer will lie perfectly on the painted surface.

Water-based paint

Removal of this coating is the simplest task. It is enough to moisten the surface with water( preferably from a nebulizer) and leave it for 15-20 minutes for the paint to soak. After that, it is easily removed with a spatula or scraper. If in some areas the water-emulsion is not removed, you need to moisten them with water again, and then remove the coating.

Now you have an idea of ​​all the possible ways to remove the old paint from the walls. Choose more comfortable for yourself, given the initial conditions of the room, such as paint, the required speed and ease of the process, and apply, if necessary, to update the interior.