How to remove paint from a metal door. How to remove or clean old paint from a wooden door

23.06.2020

Painting doors is one of the options for updating them. And the most common.

The design of painted doors can be quite different, the main thing here is to do everything right so that the coating looks new for a long time. Today we will decide whether it is possible to paint the doors water-based paint, as well as how to paint the doors correctly.

The video in this article will show the entire process of doing the work and from the photo you can see its individual stages.

Painting the door is done in three stages, each of which is quite important and will affect the final result. Let's immediately see what we have to do and estimate the amount of work.

Stripping the door	Door painting begins in this. The surface will also depend on the correct removal of the previous coating. It must be clean and smooth. you will find out below.
Primer	Doors primed for painting correctly will only contribute to the correct distribution of the dye and the quality of the connection. This largely determines the service life of the entire structure. Door painting is done only on a primed surface.
Dye application	The coloring of paneled doors and any other is fundamentally different. Liquid is simply applied to primed doors for painting. But how to paint the doors with a roller or other tool, we will consider a little later.

Choosing a material

If the paint on the door has burst or you are completely restoring it (see), you will need to choose the right dye. They are a large number of in retail.

Range different formulations wide enough to cover wooden doors. In order to make a worthy choice, you first need to determine what exactly you want to see as a result: emphasize and save natural beauty wood or create a coating that will completely hide the original structure.

Depending on this, a person can buy:

Polyurethane, alkyd, acrylic, oil or perchlorovinyl based paint, as well as opaque enamel.
Tinted and transparent varnish, stain, oil impregnation. They will give the natural color a different shade or more brightness.
If you need odorless door paint, then it is worth paying attention to acrylic. He won't be here. But again, look at the photo of the flowers and choose the right shade. It is also worth knowing that when applying the coating, it will be slightly different.

Experts in this matter advise choosing:

Acrylics are water-based because they spread well and cover the surface, plus they have a comfortable enough consistency to work with a brush.
Alkyd paintwork materials - their main advantages are high water-repellent performance, good drying speed and resistance to temperature changes.
You can choose to cover and varnish. To paint the doors, the color of the lacquer You should choose the right shade for it, it must match the overall interior.

In order for the painted ones to be attractive and of high quality, experts recommend choosing materials belonging to the second group.

All due to the fact that they have the best indicators of resistance to various negative factors, which are enough in the bath. In addition, similar materials can be used to paint interior and exterior doors.

Attention; Coloring compositions made on the basis of alkyd resin must be applied to a surface that will be completely dry. Otherwise, if the paint is applied to damp wood, it will begin to flake and peel off due to bubbles appearing on it.

So:

Painting wooden surfaces is not carried out at once, you need to perform several layers. It often happens that there is a need to use two different formulations.
First, an impregnation with a tinting effect is used, and only then a decorative layer is applied. It is extremely important to choose such compositions that would work in a duet. For example, before applying varnish, you can not use drying oil. Only stain is suitable for varnish.
If your plans are only to refresh the color of the doors using oil impregnation or stain, you will still need to apply at least two layers. How many of them will be needed in the end will depend entirely on the surface of the door. You can apply up to ten layers until the result that the person wants is achieved.

Step by step instructions for painting wooden doors

Tools needed for the job

After the paint is selected, you need to take care of the tools:

Gloves.
Rags.
Paint brushes.
roller.
Small spatula.
Emery skin.
Paint bath.
Masking tape.

Since the doors consist not only of canvas, but there are also other components, the first step that needs to be done in order to succeed in painting wooden doors is to properly prepare them. You can, of course, paint only the canvas, but in this case the difference between the box and it will be noticeable to the naked eye.

So, painting the doors must begin with the following steps:

We remove the door from the hinges and lay it on the goats, stools or a table. If you decide to use alkyd products that have a pungent odor, then all work is best done outdoors.
If you cannot remove the canvas, then it must be blocked with wedges. They are arranged in such a way that the panel brush can reach all surfaces. The interlock must also prevent the doors from closing, which will inevitably damage the applied paint layer.

Attention: Experts still advise to remove the canvas, but if this is not possible, then resort to the second option described above.

Then we start to remove the accessories. If the handles and hinges are non-removable, then we seal them with tape or wrap them in paper, but foil is most suitable. We advise you to fix and seal the lock with tape.

Preparing the door for painting

This is a very important stage of work, which includes several stages. Treat it carefully and with special care. In this case, the painting of the doors will turn out one hundred percent.

Preparation takes place according to the following scheme:

At the very beginning, we remove all layers of paint, putty or primer that are available. As a result, the wood should be completely clean.
For these purposes, you can use a grinder or make makeshift fixture from a bar, wrapping it with sandpaper. If there is a building hair dryer, then it is best to use it, the process will be much easier.
Layers of paint will bubble when heated and then removed with a spatula. You can also buy a special wash designed for wood. But such a tool is not cheap. How to remove paint from a door different options, you can read on the pages of our site.
Then we carry out the first grinding, which helps to eliminate small defects: scratches, remnants of the old coating or dents. To do this, use sandpaper or a machine that is connected to a vacuum cleaner.
The next stage of work will be puttying. Existing significant defects must be treated with a special wood putty of the desired color, if the coating is eventually transparent.
If the doors are painted with an opaque compound, then the color will have absolutely no meaning. Do not forget about the gaps that exist between the lintel, jamb and canvas elements.
After the time specified in the instructions has passed, we grind the entire surface again. First, we use an abrasive skin that has a medium grain or nozzle on a typewriter, and then we apply a fine grain.
If there are deep flaws on the door, repair them with auto-filler, which does not include fiberglass. A similar option can be used if the painting will be carried out with opaque paint.

Have you decided to update the paint on the door? Why not?! But, to paraphrase a well-known proverb, if you like to paint - love to rip off the paint! Yes, this process is not very exciting, therefore, so that you can easily overcome it, we bring to your attention some of the most effective and popular ways to remove paint from doors. Method 1 If the old coating keeps well on the door leaf, then it is necessary to break its adhesion to the tree. For this, the thermal method is used, namely: take blowtorch or a building hair dryer and direct a jet of hot air at the surface. Under the influence of temperature, the paint begins to bubble and can be easily removed with a spatula. When using this method, you must remember that high temperature can burn wood, damage glass (if your door has them), so use heating tools with extreme caution. By the way, the heating method is only suitable for wooden doors, but if you have a metal door, then read on ...

Have you decided to update the paint on the old door? Why not?! But, to paraphrase a well-known proverb, if you like to paint - love to rip off the paint! Yes-ah, this process is not very exciting, therefore, so that you can easily overcome it, we bring to your attention some of the most effective and popular ways how to remove paint from doors.

Method 1 If the old coating keeps well on the door leaf, then it is necessary to break its adhesion to the tree. For this, the thermal method is used, namely: take a blowtorch or a building hair dryer and direct a jet of hot air to the surface. Under the influence of temperature, the paint begins to bubble and can be easily removed with a spatula. When using this method, you must remember that the doors will damage the glass (if your old doors have them), so you should be extremely careful when using heating tools. By the way, the heating method is suitable only for wooden doors, but if you have a metal door, then read on ... Pictures of the door are presented on our page.
Method 2 This method is associated with the use of " chemical weapons", in the role of which are solutions of caustic soda or dimethylene chloride. This method requires special care in following the instructions written by the manufacturer on the packaging of these solutions.
Before you start washing off, pour some of the solution into a plastic box and apply it to the door leaf until the paint starts to bubble.

Method 3 You can make your own paint remover paste. To do this, pour enough caustic soda into the water so that it stops dissolving, then add oatmeal (oatmeal). Apply the resulting paste to the door and allow it some time for the active substances to begin to act, especially in those places where the thickest layer of paint has been applied.

When the paint on the door has softened enough, you can pick up a spatula. A flat trowel can be used to remove paint from a flat door surface.

Remove paint from wooden surfaces carefully, without pressing hard on the scraper. In order not to damage the wood fibers, you need to guide the scraper in their direction.

On profiled surfaces and hard-to-reach places Combined or hook-shaped triangular scrapers will come to your aid.

If there are recesses on the door, then a triangular spatula or a razor can be used to remove paint from them.

After removing the old paint, the door leaf must be treated with water or white spirit and allowed to dry. See pictures of doors on our page.

How to clean old paint from surfaces - a few easy ways

Removing old paint is often the reason why we take a long time to repair a particular piece of furniture or household items, and sometimes repairs in general.

This process is unpleasant and lengthy. Especially long paint cleaning can take place in those places that have been painted more than once - when removing such “layers”, seven sweats will come off. (take the same wooden frames remembering the king of Peas - after all, even after replacing them with double-glazed windows, they will always find application on the site, at least take and make the same greenhouse out of them, which the neat owner cannot afford not to clean to a shine before installing it in the garden.

Most often it is necessary to repaint doors and windows. If the paint layer is still strong, still smooth and has no cracks, it is enough to sand it and apply a layer of new paint on top. If cracks and delaminations appear on the old coating, then it is no longer suitable as a basis for a new coating, and it must be completely cleaned off.

This can be done in three ways:

by heating, followed by removal of the softened layer of paint,
sanding or scraping
chemical (using special compounds called washes).

How to remove paint using heat

The paint to be removed is heated with a building hair dryer (for which it can be used in more detail here), which works on the principle of an ordinary household one, but creates significantly higher temperatures (up to 650 ° C).

Modern devices allow you to adjust the air temperature steplessly. The old coating, softened by a stream of hot air, is removed with a scraper. There are not only electric, but also gas building hair dryers, powered by interchangeable gas cartridges.

mechanical method

Removing old coatings with grinders, scrapers or is a tedious job and provides good results only when processing even and smooth surfaces.

Eccentric and orbital sanders remove a very thin layer of material, but they create a smooth and (depending on the grain size of the skin) smooth surface. Belt sanders, on the other hand, are much more productive and can remove a more powerful coating, but they must be constantly moved, changing direction, otherwise deep grooves will remain on the base. This also applies to angle grinders.

For the final finishing of the surface, already cleaned of the old coating, it is better to use eccentric and vibratory grinders.

The coating can be removed from wooden surface scraper or scraper, the blades of which should be sharp and without notches. Convenient scrapers with replaceable blades.
Chemical cleaning of old paintwork

Washers used to remove coatings by chemical means, there are different composition. They are usually environmentally unsafe and can adversely affect human health. Therefore, before using the wash, you should read the instructions.

Washes are liquid, jelly or paste, diluted in water or ready-made. There are alkaline pastes that are applied in a thick layer to the paint being removed. Such pastes are suitable for removing coatings from profiled surfaces. Effectively softening the coating material, they "pull" it out of the recesses of the three-dimensional pattern. The wash is applied to the painted surface and kept for several hours. During this time, the wash is able to soften up to ten layers of the coating. Then the remains of the wash are removed along with the old coating.

Liquid and jelly-like washes are applied to the surface with a brush. With the duration of their exposure for no more than half an hour, one or two layers of the coating can be softened. If necessary, this operation can be repeated. The layer of softened coating is removed with a spatula, an ordinary hard or metal brush. The surface cleaned from the coating is washed with water or white spirit, guided by the instructions attached to the wash.
High pressure paint removal

Paint coatings on gates, fences, garden buildings often peel off under the influence of the external environment. Their residues can be washed off using a special apparatus that creates a jet of water under high pressure. Before applying a new coating, the base must dry well.

So:
Gas building hair dryers do not have an open flame, which avoids accidental burns of the treated surface. Special nozzle nozzles, forming a wide jet, evenly distribute hot air over the surface over a fairly large area.
When processing a painted surface, a belt sander, equipped first rough skin, they drive in the direction across the fibers of the wood, and having filled the machine with a thin skin, they already work in the direction along the fibers.
Orbital sanders can only remove a thin layer of material. They are good for finishing already pre-treated surfaces.
A belt sander with a narrow belt can handle hard-to-reach places. The width of this tape is 10 mm.
The angle grinder can also be equipped with additional accessories, including for rough grinding.
Scrapers and scrapers can only be used to remove old coatings with flat surfaces. Care must be taken not to damage the tree.
Liquid and jelly-like washes are applied with a brush. To remove the old coating from vertical surfaces, jelly-like washes are more suitable.
Ready-to-use paste-like washes are applied to the surface with a spatula, rubbing them into the recesses of the profiles.
When processing relief surfaces with a small pattern, water is added to the washing paste. In a more fluid state, the composition freely penetrates into the recesses.
Washes are also available in aerosol packaging. They are used for cleaning small surfaces. Work with such washes should be outdoors or in well-ventilated areas.

Removing old varnish and paint from surfaces before painting

Before starting repairs, carefully remove all coatings (paint, lime, etc.) that are weakly adhered to the surface of the walls, and mechanically. For this, both a spatula and a regular scraper are perfect for you.

It also happens that old paint in some places it adheres very firmly to the surface, but at the same time it appearance very poor, due to smudges and different thicknesses of paint layers, which over the years becomes thicker, sometimes reaching several millimeters. If such cases occur, then the surface of doors, window frames and radiators must be repainted.

But before you start repainting, you should carefully remove the old paint and only then the new coating will last a long time and its appearance will be aesthetic. Now there are a lot of tools that are very effective for such work. And you can buy them in almost every hardware store. The product is applied with a brush or alternatively with a spatula. Apply the product directly to the surface of the old paint. After a certain time, the old coating begins to soften and becomes loose. After that, the paint can be easily removed with a spatula or scraper.
After the old coating is finally removed, the surface should be treated with acetone or another solvent to carry out the degreasing procedure. Such a procedure does not take much time, and it does not require special skills. You just need to pay attention to safety precautions. If it happens that the paint is still difficult to remove from the surface using the above tools, then you should resort to using tools such as an electric hair dryer, grinder or drill with a special nozzle. But in principle, you should not worry, because it rarely happens that it is impossible to remove the paint using all the methods described, and you, in principle, can easily cope with this.

old door old doors pictures door doors pictures door wood processed

If, in the process of arranging or repairing your home, you have a desire to renew, freshen up or completely change the appearance of solid wood furniture - doors, floors, window sills, frames, platbands, cabinets, tables or chairs, then in this case there is an urgent need to be the first it’s a matter of removing old paint from wood, that is, preparing the surface for all subsequent work.

And if in the case of new surface the situation is quite simple: it needs to be sanded and then primed, then the old wooden surface will require much more time and effort to bring it into proper form. The matter is also complicated by the fact that a tree is relatively soft material, and when removing paint from it, there is a risk of damaging its surface.

Is it necessary to remove paint from wood surfaces? This is perhaps the first question you ask yourself when you decide to do some kind of restoration work. After all, in some cases it really does not make sense to remove the old paint from the surface, and it is quite possible to apply a new layer of paint on top of the old one.

In this case, you should take a closer look at the surface being treated: if the layer of old paint is thin, the paint does not lag behind the surface and there are no cracks on it, then minimal processing will be enough sandpaper, after which it will be possible to proceed to re-staining.

the previous paint layer is too thick;
the surface has already been painted several times;
there are cracks on the layer of old paint;
the former layer bubbles and lags behind the surface;
you are going to use a different type of paintwork than the previous one.

How to remove old paint from wood

There are three main ways to remove old paint from a door or other wood surface:

Mechanical
Temperature
Chemical

Mechanical way to remove the old layer of paint from the surface of the tree

This method consists in mechanical action on a previously painted surface. This is the first method that is tried to be used to clean the surface of a door, floor, window sill or any piece of wood furniture from old paint. In this case, it is simply scraped off with the appropriate tools:

spatula;
metal brush;
sandpaper;
chisels;
scraper.

Beyond simple hand tools that require significant physical effort, you may need more serious power tools: an electric drill with a special nozzle for grinding and cleaning, a grinder or grinder with a disc for grinding and cleaning.

The mechanical method of removing old paint is justified if the paint layer is already very old, and the paint peels off the surface easily, in layers. It's also a good idea to mechanically scrape old paint off flat surfaces, or small surfaces such as window frames.

However, when it comes to uneven decorative surfaces, such as twisted, carved and curved elements on doors, furniture or trim, a simple mechanical removal would be too complex, time consuming and inefficient. Another negative moment grinding is the impossibility of completely removing the paint, since it usually only makes the paint layer thinner, and paint usually remains in hard-to-reach places.

Temperature method for removing old paint from wood

An effective way to remove the old paint layer with your own hands is to heat it, followed by removing the peeling paint with a spatula.

How to remove old paint with a building hair dryer? To do this, you need to direct a stream of hot air from a hair dryer onto the treated paintwork surface. From exposure to heat, the paint softens and begins to swell, after which it is removed with a spatula, scraper or chisel. If there are depressions on the surface, the paint can be removed from them with a triangular spatula. In the absence of such, you can use a razor.

But remember that this process requires accuracy and caution, because if you handle the hair dryer and spatula ineptly, you can get hurt or damage the wooden surface. You also need to keep in mind that it is difficult to remove oil paint with a hair dryer, because, unlike other types of paints, it does not exfoliate when heated, but melts, turning into a greasy soft substance that is difficult to remove with a spatula.

How to chemically remove old paint from wood

A tool for cleaning old paint from a door, frame, trim or furniture can be made by yourself or purchased ready-made. The home remedy in this case is a solution of caustic soda. This method requires great care and appropriate protection. open areas body, that is, be sure to wear thick rubber gloves and unwanted clothes. Next, you need to pour a solution of caustic soda into an unnecessary container and apply it with a brush to the painted surface. Continue application until the old paint begins to blister. After that, you need to clean off the paint with a spatula, scraper or chisel, and apply any degreasing agent to the treated surface, or at least wipe it with water.

It is much easier to remove old paint from wooden objects, purchase ready-made chemical agent, designed for a certain type of paint in combination with a wood surface. When using them, it is very important to pay due attention to the protection of the skin, eyes and respiratory tract: protect your eyes with goggles or a mask, hands with gloves, and be sure to open the window while working.

If you cannot determine which paint was used in this case for painting, for example, doors, you can choose a universal chemical for all types of paint. The selected solvent is also applied to the surface with a brush, roller or spray gun, and after 10-15 minutes, the paint is easily removed with a spatula or even just a rag moistened with kerosene or water.

Wooden doors bring a special charm to the interior, but only if they look decent and the paint is applied carefully.

Cracks in the paintwork, faded shade and peeling paint on the doors can spoil the whole impression of the room.

There is a need to remove the old paint. For this, proven chemical, thermal and mechanical methods are adopted.

Learn more about how to remove the old one from wooden door, we will tell in the article.

Choosing a way to remove old paint, the question may arise, should it be removed at all? The answer to this question and the choice of coating removal method depends on the following factors:

door surface type;
coverage condition;
type of paint used;
adhesion strength of the coating with wood;
thickness and number of layers.

The most difficult thing will be to remove the layering of the paintwork, which has good adhesion to the material, and the door itself with difficult relief surface and mass decorative elements.

If the door is designed for subsequent painting, then, depending on the condition of the coating, you can do with sanding. This is possible when the paint has been applied neatly in one coat and does not contain peeling or chipping. The old coating is simply processed with sandpaper, and a new layer can be applied.

Old layers of paint that have been exposed atmospheric influences and time, have significant defects (chips, cracks, swelling), will have to be removed. It is also necessary to remove too thick a layer of paintwork that has frozen streaks and other results of inaccurate door processing in the past.

It happens that the new door paint is incompatible with the old one. This is also an occasion to completely remove the paint from wooden doors.

Preparatory work

Preliminary preparation of the door requires cleaning from dust and dirt. Also it is necessary to clean off the swollen layers lagging behind the base. If one of the sides is subsequently hidden, for example, with leatherette upholstery, the paint can not be carefully removed - it is enough to clean off the detachment.

Having decided on the nature and scope of work, you should choose tools for removing paintwork.

You will definitely need:

rags;
putty knife;
facilities personal protection(respirator, special goggles, gloves).

For the chemical method, you will need reagents, a bucket of water, a brush for applying special composition. mechanical and thermal method will require a special tool (grinding device, drill with nozzles, industrial hair dryer).

How to clean at home?

For removing old paint from wooden doors one of three methods is used:

mechanical impact.
The use of chemicals.
Exposure to high temperatures.

Each option has its strengths and weaknesses. Depending on the specific situation, the appropriate method, appropriate instrument and preparations are selected.

Thermal methods

The thermal method of cleaning a wooden door from paint involves the use of an industrial hair dryer and a spatula.

Work order:

Plug in the hair dryer.
Direct a jet of hot air at the door area.
When heated, the paint will begin to swell and lag behind, and it will be easier to scrape it off with a spatula.
The processing process is repeated on the next zone.

After the entire door is processed, it is necessary to finalize the missing fragments. The surface is cleaned with sandpaper.

If an industrial hair dryer is not available, you can use an iron, after placing foil between the sole of the device and the door.

Advantages of the method:

environmental friendliness;
not much experience required.

Flaws:

it is necessary to use a special tool;
not always possible to use on difficult surfaces;
there is a possibility of damage to the tree if the temperature is set incorrectly;
revision may be required.

How to clean the surface mechanically?

The mechanical method involves removing a layer of paint using tools: from a conventional spatula to a drill with nozzles and other special equipment. The use of a power tool speeds up the process, but may not cope with difficult places.

Disadvantages of the method:

dust formation;
high probability of physical damage to the surface;
need a tool;
the need for protective equipment.

Advantages:

environmental friendliness;
Availability good tool speeds up the process.

As a suitable paint stripping tool, you can use:

Removing a multi-layer coating using only sandpaper or a spatula is laborious and inefficient.

The best solution to the problem is the choice of a chemical method or the use of a power tool.

How to wipe with chemicals?

Chemical washing is carried out using solvents. The technology is based on the destruction of the structure of the dye itself by chemicals:

The solution is applied to the surface with a brush.
Withstand the required time, which depends on the composition and type of paint.
Using a spatula or scraper, remove the coating swollen under the action of reagents.
Clean off paint residue.

If the instructions for washing indicate that the surface needs additional wiping with white spirit or other solvent, this must be done.

Advantages of the method:

the speed of action of the chemical composition;
ease of use;
does not require excessive effort;
no special skills required.

Flaws:

toxicity of chemicals;
an allergic reaction is possible;
mandatory availability of personal protective equipment;
the need to organize good ventilation in the process of using funds;
pungent smell;
solvents require special disposal.

Despite the relatively high efficiency, the use of chemicals often requires mechanical surface finishing.

Before using a solvent, it is important to check whether it is suitable for a particular type of paint, and whether the condition of the wood allows this cleaning method to be used.

The selection of a reagent should take into account the type of wood and the condition of the material.. Decayed wood may not withstand intense chemical attack.

How not to damage the door leaf?

The wooden surface has a characteristic texture, is characterized by susceptibility to hard mechanical stress.

When working with natural material the following points should be taken into account:

In addition to updating the paint, attention should be paid to the condition of the fittings. If necessary, replace or restore metal elements.

Cleaning Tips:

Work must be carried out using personal protective equipment.
Removable parts of wooden fittings, for example doorknobs, it is convenient to process separately.
If the door is removed, then before cleaning it is desirable to remove it and lay it horizontally - it will be more convenient to carry out the work.
For heat treatment Do not use open fire - only hot air.
After washing, the defects of the wooden surface, before coating with new paint, must be eliminated - by sanding, puttying.
Before new painting the tree should be primed.
The use of sandpaper for removing paint and sanding can only be recommended for a thin layer of coating on a wooden door.
Grinding work on wood with power tools is recommended to be carried out on the street. This will reduce the chance of hurting working part equipment foreign object.
When used for washing chemicals, do not use plastic containers - the solvent can “corrode” it.

Haste when removing paint is inappropriate, as it can damage the wood and cause injury.

Conclusion

Cleaning a wooden door from old paint is a laborious process that takes time and a thoughtful approach to achieve the goal. But even those who do not have experience and special training can cope with the task.

During the repair work it often turns out that the old door does not fit the new environment either in style or in color. But it does not always require replacement. If the canvas is made soundly, of high quality, you don’t need to get rid of an expensive item and spend money on acquiring a new one, but only carry out procedures for cleaning it and preparing it for new staining. This takes into account the material from which the doors are made, the depth of penetration of the old paint layer into the canvas, the number of layers.

Bringing the old door back to life

The easiest option, but costly, would be to replace the old, shabby wooden door leaf with a new one made of MDF, hollow inside. A zealous owner will not throw away old door, but will be taken for its restoration if:

it is made of oak or other dense material that will last for several decades;
has dimensions that differ from those accepted by the standard, especially in stalins with high ceilings. The manufacture of such a canvas to order will cost the owner a pretty penny;
has an unusual decoration with carvings;
the owners are creative people who can make an art object out of an ordinary wooden door.

Cleaning the door of paint

The procedure for bringing the old wooden product in the proper form is conditionally divided into several stages:

removal of the old layer;
door repair, preparation of its canvas for a new painting;
fresh paint.

For the product to receive new life, served the owners due date, there were no swellings and delaminations, it is necessary to remove the old paint from the doors. Among various ways there are several main ones:

thermal;
mechanical;
chemical.

Heat treatment

Heat treatment is carried out by directing hot air to the door. Such purification occurs when using gas burners, building hair dryers. The advantage of this method of freeing a wooden door from old paint is the absence of dust, but the disadvantage is that the surface being cleaned is more likely to ignite. Such procedures are carried out on outdoors, with the use of personal protective equipment (respirators, masks), have a tank of water on hand to destroy the possible occurrence of a fire in the bud. It is used in cases where there are several layers of coating on a wooden surface. Under the influence of hot air, the previously applied coating swells, it is scraped off with a spatula.

mechanical cleaning

You can clean the door of paint with scrapers, spatulas, brushes for metal. The door is removed from the hinges, laid in a horizontal position, with the help of improvised materials, a grinder removes the paint. The method is not effective due to dust, as well as possible damage to the wooden surface.

Chemical cleaning

It is characterized by obtaining a positive result, is in the greatest demand due to the speed of action of washing reagents, which, when applied to the old paint layer, soften it, thereby making it easier.

Attention!

Work is carried out in the open air or with a constant supply fresh air due to the specific smell of washing agents.

General scheme for surface cleaning and preparation for painting

In life, all 3 cleaning methods are used, since one is often ineffective. To remove the paint from the doors, it is removed from the hinges, laid on a horizontal surface, the handles and locks are unscrewed. To bring the door into proper shape, before painting, remove the old coating in any of the ways, grind the surface, removing small defects, chips, repair scratches, more serious defects with putty.

In order to qualitatively remove old paint from the doors, materials, tools and protective equipment are prepared:

solvent;
brushes;
spatulas;
gloves and goggles;
Sander;
wood putty;
skin of different grain sizes.

Protect hands with rubber gloves, and eyes with glasses, apply the drug with a brush, covering the entire surface of the door.

Types of washes

Paint washes are available in the form of:

powders;
pastes;
gels;
liquids.

From a wooden surface, first, with a spatula, remove the layers that peel off themselves, then, with a brush, apply a wash to the dense layers of the coating. The speed of action of the agent is several minutes to a day. When choosing washes, one should take into account on what basis the coloring composition was made, otherwise, if the solvent is chosen incorrectly, the idea to remove old paint from a wooden door is doomed to failure and leads to expenses for buying a new washer. Distinguish:

various liquid solvents based on white spirit are used to remove PF, NC, oil paints;
masters make a special washing paste, consisting of caustic soda and oatmeal. Removes water-based,. Such a paste is 100% effective in places with complex geometry with the presence of wooden curls, monograms. It is applied in a thick layer on a tree, waiting for the paint to swell, removed with scrapers, washed with water under pressure, removing an aggressive wash;
modern washes, which are gels that can soften the old coating in 15-20 minutes. With their help remove any kind of paint.

Attention!

The task of the wash is to penetrate the paint, soften it, swell, without harming the wooden surface.

Stages of work

Before removing the paintwork with a remover:

The surface is wiped from dust.
Evenly cover the painted wood with a brush, without going over the same place twice.
The surface covered with a wash is left for the time indicated on the label, covered with a film for best effect.
Soon the reagent turns brown or Brown, the paint rears up, it is removed with a spatula, disposed of.
If the result is unsatisfactory, the procedure is repeated.
The cleaned surface is washed with an aqueous solution of vinegar, the door is wiped dry, and left for final drying in a draft.
After drying, the products proceed to puttying, sealing small cracks and chips.
Smooth the surfaces with fine sandpaper. With a grinder, this procedure is facilitated. Level and grind the surface, making movements in one direction to avoid roughness.
Dry rags remove dust, remnants of putty.
The door is ready for painting.

Painting a wooden door

Suitable for painting an outdoor wooden door is Oil paint, because it protects the tree from the action of rain, snow, frost. Prevents the appearance of the wood beetle. Paint doors:

With a brush. The paint in the jar is stirred, poured a little into a small wide container and, dipping lightly into the paint, paint the product, moving the brush in one direction. It is convenient to paint over small details and curls with a brush.
roller. If the surface is flat and large, a roller is used to apply an even layer. To do this, the paint is poured into a special trough and the roller is slightly dipped into the paint, the object is painted, moving the hand in one direction.
Spray gun. The paint is well mixed, if it is too thick, it is diluted with a slightly suitable solvent. Pour into the spray gun compartment, set the desired pressure and size of drops when spraying by test painting an unnecessary piece of wood. They put on protective equipment (goggles, a respirator, gloves) and paint, moving their hand with a gun from the bottom up.

Attention!

When streaks appear, they are immediately removed with a rag so that they do not freeze with ugly drops. Painting from a spray gun after 15-20 minutes is carried out again with incomplete painting of the tree.

Iron door cleaning

Entrance doors are usually made of metal. They are constantly exposed to the weather. Therefore, they cannot simply be tinted like wood. The paint layer is completely removed from them. For cleaning you will need:

acetone or white spirit;
skin of different grain sizes;
Sander;
putty knife.

Before work, the metal sheet is removed from the hinges and laid in a horizontal position. The colored layers are removed with a grinder, using different nozzles, depending on the thickness of the previous layer. Then the small remnants of the layer are covered with a solvent and left to swell. The swollen paint is removed with a spatula. As well as from a wooden surface, with metal door the paint coating is removed by thermal and chemical means. When using chemical washes, the preparation is immediately removed from the surface after the paint is removed by cleaning the door with solvent and water. The cleaned surface is leveled, freed from cracks and flaws, using automotive putty, in places of damage, then sanded by hand or with a grinder.

Painting a metal door

Entrance doors have large surface, so they prefer to paint from a spray gun or with a roller. Painting starts from the top, moving down and trying not to go on the painted layers. After 15-20 minutes, light and unpainted places are re-stained. If streaks appear during painting and dry up, they are protected with sandpaper after the surface has completely dried and the entire surface is re-painted. Loops are also painted over in desired color. Since the paint has a strong chemical smell that does not disappear for a long time, painting metal product produce on the street or utility room with open doors and windows.

Attention!

Do not paint in rainy weather and frost. At high humidity there is no strong adhesion of the paint to the product, and in the cold the paint thickens and does not adhere well to the surface.

To avoid unpleasant surprises, experts advise that even with the complete removal of the old coating, use a new paint of the same brand. In this case, the hosts will avoid possible problems in the form of small swellings of paint in different places. Then the updated product will not stand out as an unsightly stain against the backdrop of a fresh repair.