How to remove old paint

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Contents:
  • Where to start?
  • What is the paint on the walls?
  • How to remove old paint?
  • Removing paint with chemical solvents
  • Removing paint by heat treatment
  • Removing old paint mechanically
  • How to remove old paint from walls electromechanically?

During the repair, you face the old paint under the wallpaper, the layers of oil paint on the walls in the bathroom, especially the shock introduces the appearance of "tightly" painted concrete. The problem is how to remove the old paint, it seems, at first glance, insoluble, but do not rush to drop your hands - there are no unsolvable problems. In this article we will give several effective ways how to remove old paint from all kinds of surfaces.

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Where to start?

If you are planning not to waste time on the laborious process of removing paint - coat the walls with gypsum board or decorate with plastic panels. But to make a good and high-quality repairs and to clean the walls well from the old paint that has been layered over the years of dirt, we recommend that you work a little.

Before removing the old paint from the walls, set the course of your actions:

  1. Stock your personal protective equipment: gloves, goggles, respirator.
  2. Cover the floor with polyethylene film or old newspapers so that dirt does not spread through the room.
  3. Determine the type of surface with which you will remove the coating.
  4. Find out what type of paint was used, the approximate thickness of the layer and the degree of its strength.
  5. Choose you convenient tools and tools.
  6. Start with the most simple methods, go to more complex ones, if necessary, combine them.
  7. In the process of work, sharpen the tools to get the desired result of clean walls faster.
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What is the paint on the walls?

Three types of solutions are most commonly found:

  • oil;
  • water-based;
  • acrylic.

Important! The most difficult to remove is oil. In Soviet times, almost all surfaces were painted with oil paint - cheap and "angry", especially hard on unplastered concrete.

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How to remove old paint?

There are several effective ways to remove old paint. In general, there are three main ones:

  1. Chemical;
  2. Thermal;
  3. Mechanical.

Let's consider each method separately, its disadvantages and advantages.

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Removing paint with chemical solvents

The use of special solvents greatly simplifies the task of removing unnecessary coatings. But we should not forget about the disadvantages of this solution:

  • high toxicity;
  • is a fire hazard;
  • chemicals emit a persistent specific odor;
  • requires special disposal of funds;
  • considerable expense of money.

Than to wash off a paint?

Removal of paint from walls in this case is suitable for:

  1. chemical reagents - special solvents;
  2. potassium carbonate( soda ash);
  3. lime;
  4. chalk;
  5. liquid glass;
  6. spatula of different widths;
  7. paint brush, roller;
  8. sandpaper.

How to remove old paint?

We offer an effective way how to remove old oil paint from walls with the help of a special dissolving substance. This option is suitable for other types of paints. Proceed as follows:

  1. Prepare a chemical solution in accordance with the instructions.
  2. Apply the product to the surface to be cleaned with a paint brush or roller, moving in the same direction from the top of the wall.
  3. To effectively remove paint from concrete, apply the solvent mixture in several approaches.
  4. The exposure time of the medium should be set according to the thickness of the paint layer.
  5. Remove the softened paint with forward movements using a spatula from the bottom of the wall.
  6. Remove residues with a hard brush or sandpaper.
  7. Wash the surface of the chemical several times with a solution of soda ash or detergent, rinse with water.

Important! If the decorative coating is applied in several layers, repeat the process until the colorant is completely removed.

Several ways to remove paint from wooden surfaces:

  • Method 1:
    1. Wet the board with water.
    2. Sprinkle with a thick layer of soda ash.
    3. Cover with a wet burlap.
    4. Leave for a day, periodically dampening the cloth.
    5. Remove the paint with a spatula.
    6. Remove residues with a special liquid to remove paint.
  • Method 2:
    1. Make the mixture: 400 g of potassium carbonate, 200 g of crushed chalk with 1 kg of quicklime, dissolve in water until liquid sour cream is formed.
    2. Lubricate the surface with a brush.
    3. . Soak for 12 hours.
    4. Remove the dissolved mass by the method described above.

Important! This method will be effective in case of not very old paint .

  • Method 3:
    1. The liquid glass will help you to remove the paint.
    2. Lubricate the surface with a substance.
    3. Wait until completely dry.
    4. Remove the exfoliated silicate film with a spatula.
    5. Repeat the procedure depending on the effect.

Safety rules

Note the following caveats:

  1. Observe safety regulations for the use of chemical agents.
  2. Use only in a ventilated area.
  3. Protect all parts of the body against acids and solvents from personal protective equipment.
  4. Drink plenty of fluids during work.
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Removing paint by heat treatment

Softening of such decorative solution by heating also allows to speed up the process considerably. In this case, immediately prepare such tools:

  • building hair dryer;
  • iron;
  • foil.

Important! Pros:

  • removes even the most chronic layers;
  • can be used in places where shocks and vibration are not allowed( window frames, glazed doors).

Cons:

  • when exposed to high temperatures, the paint gives off a pungent odor and toxic substances;
  • can not be used on decorative, plastic surfaces;
  • it is not allowed to heat the surface in places where the wiring passes.

How to properly remove the paint by heating?

Method 1 - use of iron and foil. Please note that the size of the foil sheet should be larger than the area of ​​the bottom of the iron. Proceed as follows:

  1. Visually distribute the area to be cleaned.
  2. Apply a piece of foil to the painted surface.
  3. Heat the iron.
  4. Attach.
  5. With a spatula, clean the melted material.
  6. Remove residues with sandpaper.

Method 2 - use of a construction hair dryer. Do so that the work does not take much time:

  1. Direct a jet of hot air to the problem area.
  2. As the material melts, clean it.

Important! Use the hairdryer carefully on the glass surfaces.

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Removing old paint mechanically

For this purpose, you can use such tools:

  • ax;
  • hammer;
  • chisel.

Important! Pros:

  • is the least harmful method;
  • no chemical effects on the body and the environment;
  • does not need treatment after chemical agents;
  • is convenient in poorly ventilated rooms;
  • does not require a lot of money;
  • is suitable for small areas.

Cons:

  • slowly;
  • is laborious;
  • is injurious.

How do I remove the paint?

1st option. This method is used for the problem of how to remove paint from the walls in the bathroom for further wall tiling with ceramic tiles. Do this:

    1. Take a small ax and make a notch.
    2. Tap on the surface, making small gaps between strokes.
    3. In corners and hard-to-reach places, remove the cover with a wide chisel, hitting it with the back of the ax or hammer.

Important! If the paint is removed completely, sand the surface with sandpaper, wipe with a damp cloth.

2nd version. To remove the old paint such as water emulsion or acrylic, additional warm water is required. The scheme of work will be as follows:

    1. Make an incision with an ax.
    2. Apply water to the surface in a convenient way: spray, rag, roller.
    3. Leave to soak.
    4. Use a sharp ax to scrape paint from the walls at a slight angle.
    5. Remove the residue with a spatula.

Important! Remove the paint in one direction, moving clockwise.

3rd version. To remove acrylic paint, use a metal brush or a coarse-grained skin - carefully work the entire surface in a circular motion. If the paint is of high quality, it will be removed with difficulty. If you plan to cover the same surface again with acrylic paint, the old layer can not be removed.

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How to remove the old paint from the walls electromechanically?

The use of power tools greatly accelerates the mechanical removal of the old decorative coating. If you have the right tools, use them boldly:

  • bulgarian with a wide range;
  • drill with chain nozzle;
  • a perforator with a wide chisel or a bit-crown attachment.

Important! Pros - qualitatively and quickly removes all kinds of paints from all kinds of surfaces.

Cons:

  • produces a large amount of dust;
  • , together with paint, pieces of plaster and concrete can be broken off;
  • tool generates a loud sound and consumes a lot of electricity;
  • high wear of baits;
  • is not always an instrument available;
  • method not according to goes for walls of thin and crumbling materials.

What should I know about this method?

Before removing the old paint, follow the procedure:

  1. If there are pieces of furniture in the room, cover them.
  2. Work in a respirator and glasses.
  3. Open the windows in the room, so that the air is blown out into the street by a stream of air.
  4. Use a vacuum cleaner during operation.
  5. Periodically, using a spray gun, moisten the room so that the dust from the paint settles along with moisture.

Important! To speed up the cleaning of the old paint you will help the Bulgarian with a wide range, but be prepared that this process will be a lot of dust.

How to remove old paint from concrete?

A drill with a chain nozzle is perfect - a chain in several links acts as a mini puncher - the paint is beaten off by pieces. Operate in this order:

  1. Put the chain on the drill, press it with the nut.
  2. Turn the drill to the left.
  3. Consistently walk through the entire surface, knocking it down.
  4. If the extreme link becomes unusable, remove the balance from the opposite side for balance.

Important! When working with a drill, you must be protected.

Now you no longer have questions about how to remove old paint from the walls in the bathroom, in the kitchen or any other room. Follow our advice and work will not last long!