How to remove old paint from wood

How to remove old paint from wood How to remove old paint from a tree quickly and correctly: instructions and recommendations

Fairly cracked or even faded paint on a wooden frame may be able to give a home a vintage look, but this is definitely not a decoration (of course, if it is not a design idea).

Let's consider how to remove an old paint coat from wood quickly and correctly.

Features

Removing old paintwork from window frames, furniture items, doors, and other wood coatings requires some knowledge and skills.

How to decide and understand that such a procedure is really important:

  1. Much depends on the number of layers on the surface of the wood. If the old paint was applied in a single layer, then you can start a new paint and not even remove the old paint.

    It will be enough just to walk with sandpaper on the old layer of paint until the characteristic shine disappears. So the old coating will act as a primer. It is very important that there are no paint drips on the product, as well as textural flaws, because in this case the fresh paintwork will lay down in a perfectly even and beautiful layer.

  2. The color of the old coating also plays an important role. If you plan to apply paint of a light shade or color to a dark layer, then it is worth remembering that the shade will most likely not turn out exactly what you want to get.

    In this case, you will need to apply at least two coats of paint to cover the old color. It is also worth paying attention to the fact that if the product was painted more than 5 years ago, then most likely cracks and even bulges have already appeared on it. Moreover, modern materials will differ from other analogs not only in quality and color fastness, but also in texture. In such a situation, the coating will need to be removed, and completely.

Next, we suggest you consider what types of coatings exist.

Details

Varieties of coatings

It is interesting that there are several types of paintwork in order to process wood with them. Before you remove the old paint coating from the wood surface, you should first decide on what type of coating it can be attributed to. This will make it possible to choose the best way to withdraw.

The most popular means for painting wooden surfaces has always been and will be water-based paint. Its characteristic features are matte colors, moisture-repelling properties, a large color palette and a very affordable cost.

Water-based paint can be non-water-resistant and water-resistant. By the way, the latter is quite difficult to remove from any surface, not just wood.

Please note that to determine which type of water-based paint to cover a wooden product, it should be moistened with water and left for a while.If you notice the appearance of cracks and delamination, then your wood is covered with a non-waterproof paint and varnish composition.

At the moment, water-dispersion paints (also called latex paints) are no less popular.

It is most common in the construction industry, and all due to a large number of advantages. Latex paints are completely harmless, have an incredibly large color palette, and are fireproof. They also have a high level of coating durability, and are excellent protection against fire.

Not sure how to remove old paint from wood? First, decide on what paint the surface is painted with. By the way, acrylic paints are often used to paint decorative elements made of wood.

There is even a special acrylic for stained-glass windows that can be applied to wood, glass, plastic, and sometimes even textiles. The composition of acrylic paints contains water, pigment for coloring, acrylic acid and a film former, which allows the layer to quickly set.

How to remove old paint from wood Interesting fact! The acrylic coating can withstand severe frosts, and the color saturation remains even after many years.

Previously, oil paint was the leader among paints and varnishes, but at the moment its popularity is weakening every day. The lack of demand for such a coating is due to the high level of toxicity, an unpleasant and pungent aroma, as well as the difficulties of application.

If the wood is covered with a layer of oil paint, then no other will stick on top. Very often whitewash is used as a coating for wood, which at any time was considered the best antiseptic. Whitewashing perfectly helps to protect the surface of the walls and also disinfects the air. At the moment, it is most often used only for processing hidden parts of wood - floor logs, floor beams, rafters.

Technology of execution

In general, if we consider the methods for removing the old coating from paint from wood, then there are only three of them:

  • Thermal.

  • Mechanical.
  • Chemical.

If we talk about the mechanical method, then the paint can be removed either manually or with the help of special tools. All the necessary tools and materials for performing work, for example, sandpaper or a spatula, you can easily find on the balcony among old tools or in the nearest hardware store.

Please note that I would like to point out a fact about oil materials.

The fact is that they quickly begin to stick to the abrasive coating, and for this reason the mechanical method of removing such a coating will be very, very expensive.

By the way, when choosing sanding paper, you should pay attention to the degree of abrasiveness. Coarse-grained nozzles create cavities and even scratches on the wood surface. This paper is best used if the coating will consist of several layers of paintwork.You can change the attachment as soon as you see wood.

It is worth remembering that such work should definitely be carried out on a dry surface and at the same time it is imperative to follow the safety rules.

But the chemical method of treatment will imply the use of special acids and solvents, which should be selected taking into account the type of old paint coating. Manufacturing companies often claim that such products will dissolve any type of paint, no matter how long ago it was applied. But as practice has shown, such fluids are excellent at fighting only with a relatively fresh coating (if it is not more than two years old).

Important! Chemical reagents will be optimal for removing acrylic and water-based paints and varnishes from a wooden surface.

How to remove an old paint coat from wood using chemicals? When using chemicals, the surface of the product will be covered with a thin layer of liquid. You should wait a certain period of time, which is indicated on the package - this will enable the old layer of paint to soften everything and it can be quickly removed from the wood surface with the simplest spatula. When working with chemical solvents, you should make sure that the room is well ventilated or you will do it outdoors. Work is required in special clothing, goggles and rubber gloves.

There is also a thermal method for removing old paint from the surface, and it is suitable only for paints that are made on the basis of oils or drying oil.

Based on the name, it becomes very clear that processing will mean heating the coating until the layers of paint begin to soften. Heating usually takes place with a hair dryer or even an iron. Thermal exposure will be ideal if the paint has been applied for years, layer on layer. With prolonged heating, even the hardest coating will begin to soften.

Please note that when heated, toxic substances will be released, and for this reason, when carrying out work, you should wear a respirator, and then open the windows.

Preparatory stage

If the surface of the walls and ceiling is painted with non-waterproof emulsion paint, then before starting work,

the room should be prepared in advance:

  • How to remove old paint from wood Floor surface, pieces of furniture, decor and even a stretch ceiling should be covered with newspapers or film.
  • Prepare protective clothing, gloves, goggles, respirator.
  • Prepare a container of heated water if required for your chosen processing method.
  • It is worth preparing in advance all the tools that you may need to carry out the work.

When removing the old layer of paint from the plastic, it should be preheated to a temperature of 60-70 degrees.

The performance of such operations should be postponed to summer time so that the plastic does not deform due to the temperature difference. To heat the surface during heat treatment, a building hair dryer is most often used. When exposed to hot air, blisters begin to appear on the coating, which greatly facilitates the process of removing the coating.

When painting wooden frames, very often drops of paint and varnish composition fall on the glass surface, and it is very difficult to remove them. Removing a layer of paint from glass will require special skill.

As a rule, small dirt can be scraped off, but this also requires carefulness. You can heat the glass with a building hair dryer to soften the hardened paint.

Interestingly, some specialists use foil, namely, they apply a layer of foil to the glass, and gently pass from above with a heated iron. This method will make it possible to remove even very large smudges.

Very often, when carrying out paintwork, drops of paint begin to fall on metal surfaces.

Removing paint from a metal surface also requires some preparation. To begin with, the surface should be cleaned of dirt and dust, because otherwise the process can be very delayed. In addition, before performing such an operation, it is advisable to dismantle the elements that can be damaged during cleaning.

How can it be processed

It is possible to remove the old layer of paint from wood using chemical compounds that exfoliate the top layer of the coating. If the surface is covered with shellac, then the use of the simplest denatured alcohol will be more effective.

It is convenient to remove a single coating with liquid formulations, but powder products are ideal for treating a large area.

Good advice! To remove paint from the surface, you should use a spatula, and round off its edges with a grinder in advance, since otherwise there is a high risk of damage to the wood with sharp edges during the procedure.

Mechanical coating will be the most effective way to remove old paint. Also, it can be attributed to grinding by means of abrasive paper by hand or by means of a grinding machine with a diamond cup.

How to remove old paint

In addition to the products described above, special chemical washes are often used, which include formic acid, dimethyl chloride, and the rest organic matter.

Such reagents differ in the rate of the decay process, and therefore they can be considered almost harmless.

Chemical wash perfectly copes with water-based paint - if the product is covered with one or two layers, it will be easy to wash off with store-bought reagents. There are several ways to remove paint coating using products that you can even prepare yourself. The water emulsion can be easily and simply removed with wallpaper glue or paste. The entire surface of the product should be coated with adhesive and newspapers should be glued.

After drying, remove the paper with a spatula, and with it the paint layer will come off the wood.

By means of mechanical methods of removing paint, everything can be done quickly, and it is worth giving preference to a drill with a special nozzle, in the role of which you can use a brush with metal bristles, which perfectly copes with the processing of a multi-layer water-based coating, because it cannot be removed with a spatula. The only drawback of this method will be a lot of dust formation in the apartment, which means that when carrying out such work in the kitchen, you need to cover all the furniture with a film.

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