It is far from always the decision to update the interior or make redecorating in the house should be accompanied by the replacement of wooden doors. They can be easily changed and returned. fresh look, replacing the old paintwork by choosing a new color, texture, application technology. Such a plan is quite easy to implement, you just need to choose the right paint and varnish.
Types of paints and varnishes
For painting wood modern manufacturers offer several types of paints, each of which has its own specific features and properties that can become decisive when choosing.
Alkyd enamel and varnish
This type of paint is affordable and has a huge palette of colors. After drying, the coating becomes very durable, and enamel application does not require special tools, there is no need to strictly follow the instructions. It cannot but please the fact that the initial polymerization of the enamel will occur within an hour after its application, and in a few days its full strength will be acquired.
The main arguments against such a decision are that such a coating will need to be updated almost every year, since it relatively quickly loses its original color, burns out, and cracks begin to form on it. An important disadvantage that can become decisive if it is necessary to paint the doors in the room is that the chemical components that make up the alkyd enamel actively evaporate during the drying process, rendering Negative influence on people's health. Inevitable persistent bad smell Therefore, this coating is recommended to be applied only outdoors.
The basis of alkyd varnish is alkyd resins that are dissolved in an organic solvent. They are resistant to moisture, but do not tolerate high or low temperatures, therefore, for their application, it is necessary to observe temperature regime within +5-30?С at humidity up to 85%.
It's hard durable coating for a door that can be washed using detergents. Manufacturers offer special types alkyd varnishes, which are distinguished by the possibility of being exposed to the sun for a long time, exposed to acids, alkaline materials, cleaning agents.
Nitro paints and varnishes
Nitro paints are used only if it is possible to coat and dry the door outdoors in a place where people are not constantly present. This is due to the fact that it is even more toxic than alkyd and requires safety precautions during work. But at the same time, such a coating will become the strongest and most durable of all existing ones, it dries completely in just 20-30 minutes, which is why it is often preferred for industrial coloring of wood.
The basis of nitro-varnishes contains the same substances as in paints, therefore, all the disadvantages associated with chemical composition wasps material, as well as the advantages of this option remain relevant. They are actively used for internal works, but it is desirable to create conditions under which no one will have to breathe fumes.
Acrylic enamel and varnish
If you plan to paint and varnish indoors, acrylic enamel is the best of options. This material is devoid of all the shortcomings of alkyd and nitro paints:
- drying of the coating occurs due to the evaporation of water,
- enamel contains no toxic chemical substances, which could cause allergies or an unpleasant odor during the drying process,
- the coating is bright, resistant to sunlight,
- a very wide range of enamel shades is offered,
- acrylic coating is always elastic, therefore it is not prone to cracking and chipping.
The only "minus" of such a paint can only be considered its relatively high cost and the need to additionally open the surface with acrylic varnish to increase the strength of the coating.
Acrylic paints on water based
Acrylic lacquer has a number of features in comparison with other types of materials. Key Benefits of this material remains its fire safety, environmental friendliness, as well as the absence of organic solvents. The difficulty in application may lie in the low drying speed of each of the layers, which is (depending on the conditions environment) about 10-14 days at humidity above 50%.
Manufacturers are given the opportunity to choose alkyd varnish in its two versions:
Acrylic varnishes
Features of the choice and use of paintwork materials for a wooden door
First of all, you should pay attention to whether this paint is intended for exterior or interior work (accordingly, paintwork materials are chosen for the front or interior door). No less important is the humidity in the room: manufacturers have allocated into a separate category moisture resistant materials. You should also take into account whether the resulting coating should be transparent or opaque, which means that you need to decide on the varnish or paint for the door.
- When choosing a material, you should pay attention that any glossy coating will emphasize all the irregularities on the surface of the door (this applies not only to varnishes, but also to glossy paints). If you need to make minor flaws, you should choose a matte material.
- If the choice is made in favor of acrylic paint, then it is recommended to pay attention to the fact that the adhesion of the coating to its base becomes stronger over time. In connection with these varnishing of such a door should be postponed for several days (or better weeks), having previously protected the surface with a film or glass.
- Before using nitro-lacquer on a painted surface, it is worth trying it in an inconspicuous place: a situation is possible when, instead of a glossy layer, the new paint will dissolve and “reach out” for the brush with stains.
If you decide to repair doors, contact our branch, we will update your doors and save you money that you would have spent on buying a new door.
Wooden doors look aesthetically pleasing, refined. There are many opportunities to buy blanks for painting or varnishing. It's cheap and practical. You can paint the old product in the desired tone, suitable for the interior. Many people wonder what wooden solid wood doors are covered with. There are many upgrade options. The only thing that is necessary is to adhere to the technology of preparing the canvas and painting.
Enamelled pine wood surface
Features of painting door panels
It often happens that old doorways have good box and canvas, but have lost their original gloss. accessible, simple method updates are considered to be coating with coloring materials. Anyone can do this job. It is enough to know the properties of the paintwork materials of which the doors are made. Attention is paid to compliance with the technology of painting structures:
- Paneled canvases. Before painting, they are disassembled into elements, since the number of joints leads to wear and requires updating.
- Solid wood: heavy constructions that convey the natural structure of wood. To update, varnish is taken, paint for such wood-like doors.
With lacquer - MDF. Painting the structure is simple, but before that the surface is carefully prepared.
The choice of shade of interior door structures
The range of colors makes it possible to embody different design solutions, therefore, how to cover the surface, the question does not arise. Three color trends are visible in the design: delicate, light shades; bright shades of yellow, red; dark shades. When choosing a color, adhere to the principles:
Shades of colors - Luxury, sophistication give shades of chocolate, cherry.
- In the bedroom, the nursery is selected bright hues that create coziness and comfort.
- For a log house, sashes from an array are suitable.
- In a room with antique furniture, artificially aged ones look great.
- The color of the door frame is made darker (lighter) than the walls.
The choice of material for painting
Quality paint is not cheap. Sometimes stores make discounts on high-quality paints as their expiration date approaches. If painting is carried out immediately after the acquisition of the paintwork material, then this option will save money without compromising quality.
Thinking about what solid wood doors are covered with, you will need knowledge about paints and varnishes. The range of paints is divided into: transparent, opaque. The former include impregnations, varnishes, glazes. When processing the canvas with a transparent coating, the natural color, the wood pattern is emphasized. For canvases from the array, varnish is often used. It protects the surface from moisture, various influences. Varnishes are transparent and tinted.
Important. When purchasing varnish, attention is paid to the speed of drying. It is better to take quick-drying paintwork materials. It does not spread on the surface, and is also harmless.
Opaque coatings include alkyd, oil coloring materials, which have features. More often used:
Doorway paint - Nitro paint. She has aesthetic properties, wide color palette, which is superior to other types of paints. Possesses durability, wear resistance. But harmful to health, its fumes are toxic.
- Acrylic. Suitable for use in rooms. When painting, it is well applied, there is no toxic smell. The disadvantages of paint include low strength, high cost. Acrylic lacquer is applied to the paint to increase durability.
- Alkyd enamel. It is affordable, has a wide range of shades, forms a resistant coating. This paint is suitable for wooden doors, it is wear-resistant, economical, dries quickly. A significant drawback: an unpleasant odor is retained for 2 days. This type of paint is not used where people with allergies or children live.
Preparatory work before painting
To cover the door with paintwork materials, it is necessary to carry out some preparatory work. First of all, prepare the tool:
- brush;
- container for paint;
- rags;
- gloves;
- scotch;
- sandpaper;
- 4 stools;
- putty knife.
Be sure to prepare paints and varnishes.
Painting tools The next step is the preparation of the canvas. It is removed from the canopies, placed horizontally on stools. If the selected paint has a pungent, unpleasant odor, then the work is done on the street. Remove accessories. Fixed elements are wrapped with paper, tape. The lock is covered with masking tape. To properly cover the surface - it is prepared:
Removing the old coating - Remove the old coating of paint, primer with a grinder, sandpaper, wash solution.
- Perform preliminary grinding, which helps to remove scratches, paint.
- Remove dust, dirt.
- Putty flaws, cracks in wood.
- After drying, putty the canvas with medium-grained, and then with fine-grained sandpaper.
Attention. Darkened wood is lightened with a mixture of bleach from chlorine and water (3 to 1).
Scheme, the procedure for coating the door LKM
The coloring material is applied to the doors according to a certain scheme. The shield surface is painted in 3 stages. It is better to use a roller. It provides uniform application, does not leave streaks. Start painting from the top of the corner of the door across from left to right. Then, after drying, a second layer is applied along, and a third layer across.
The paneled door is painted with a brush, starting with the recesses. Make sure there is no excess paint left. After that, the door is painted with a roller in accordance with the painting scheme of the shield surface. For rich color, paint in 3 layers.
Before varnishing doors, the number of layers is taken into account. This depends on the quality appearance. Usually applied 3 times. Each layer is applied after the previous one has dried. The number of layers can be found on the jar of varnish itself - information is provided by the manufacturer.
Lacquer is applied to wooden door large brush. If patterns are present, then brushes are used different size. To lacquered surface was smooth, painting is carried out on flat surface in the horizontal position of the door.
To varnish, the canvas is placed in a horizontal position The first (base) layer is made with diluted (water, solvent) varnish along the length of the wood structure. You can’t stop in the process, because there are dark spots. The next layer is applied across, after drying and surface treatment with fine sandpaper. Lacquering of wooden doors is carried out until a smooth surface is formed.
Attention! If a drop of varnish got on the surface and had time to dry, then it is better to leave it as it is. Otherwise, you can spoil the appearance.
Pine canvas painting
The advantage of inexpensive pine is the pleasant smell of pine needles, which brings peace to the house, contributes to good sleep. Pine is classified as a wood susceptible to the action of the environment. Pine will become strong, wear-resistant if it is painted with the selected paintwork.
Not all designers in the interior of the premises willingly use a pine door - it has a lot of knots. This deficiency is corrected with a stain, giving a noble shade.
Before painting a pine door, it is puttied and sanded. Resin drips are removed, door leaf sanded from pine. To paint pine doors, you need to carry out the work:
- Any pine door is pre-treated with sandpaper - sanded.
- The surface of the pine canvas is cleaned of dust.
- Pine doors are primed, which contributes to the uniform application of paint, protects the wood from the rotting process. To improve antiseptic protection, a special impregnation is used.
- Next, a layer of stain of the desired shade is applied to the pine door with a roller. Opaque paints are suitable for full coloring of the texture.
- Lacquered pine door.
When coating solid wood doors, do not save time and do not shorten work processes. This turns into an unattractive appearance, the appearance of defects on the surface of the canvas. Therefore, carrying out the main stages of painting from stripping to polishing is an important aspect of it.
How to paint pine doors correctly:
Wood is optimal for making doors, but it needs protection. Staining allows you to extend the service life and give the doors a beautiful appearance.
How to prepare wooden doors for painting
The application of paint and varnish components requires the preparation of a wooden surface. This is necessary to improve adhesion between the coating and the base, as well as even distribution of paint or varnish. You can carry out the preparation yourself, since there is no need for a specially equipped room and professional tools. At the same time, the technology of this process is common both for the old and already painted, and for the new design. But in the first case, the removal of the existing coating is required, and further actions are optimal for any wooden canvas.
Proper preparation of the door is the key to perfect staining
For proper preparation The type of wood from which the product is made is not important. Use comfortable and quality tools. If wood hard rock, then you need to make more efforts to process it. Doors made of pine or other soft solid wood varieties require careful handling.
Removing old paint from a door
In preparation old door may need to be removed for the update. old paint with which the product is covered. With the help of such an event, you can completely transform a canvas that has lost its beautiful appearance.
Paint can be removed different ways, but it is important to process all parts of the working surface
To eliminate flaky and old coatings, you can use thermal, chemical or mechanical methods. Features of technologies are expressed in the following:
- during thermal removal of the coating, a building hair dryer is used, which heats the surface, and the softened paint is removed with a spatula;
- the chemical method involves applying a special chemical wash to the door, waiting for about 5-10 minutes for the action of the product, then scraping the paint with a spatula;
- the mechanical method involves the processing of a wooden door with a rigid sandpaper, grinder, that is, the removal of paint by friction.
After applying the wash, the paint can be easily removed with a spatula.
Chemical and thermal methods allow you to quickly clean the product from the old coating. For implementation mechanical way time and physical costs are required, which is not always convenient.
Video: thermal method for removing paint from wood
Door treatment before painting
An old door after paint removal or a new product is sanded before coating. This process involves the maximum smoothing of the wood structure for even distribution paint composition. If there are small dents, cracks on the canvas, then they must be covered acrylic putty in wood color. After this product dries, they begin grinding, which is carried out along the fibers.
In the process of grinding on the door, irregularities are eliminated and the smoothness of the coating is ensured.
If bathing, entrance wooden doors are processed, then after grinding, an antiseptic and fire retardant should be applied to the wood. These substances can be purchased at hardware stores, and they are applied to the canvas with a brush, distributing thin layer. To increase the service life, interior doors are often treated with an antiseptic.
Video: sanding a wood shield
The choice of paint for wooden doors
To create a dense and uniform coating, use paint suitable for processing wood products. Such funds are presented in a wide variety and therefore, when choosing, certain features must be taken into account, for example, the operating conditions of the paint, the method of application. The composition is also selected depending on where the doors are located. For example, entrance canvases are significantly affected by ultraviolet radiation and humidity, and the paint should protect the material from deformation as much as possible.
Door paint can be of any color, but its high performance is important
The choice of paint is carried out taking into account the following features of the placement of doors:
- for entrance doors, you need a tool designed for outdoor use, resistant to low and high temperatures, humidity and ultraviolet rays. The paint should provide a dense coating to protect the surface from mechanical stress;
- for interior doors compositions that do not have a pungent odor and form a stable, durable, high-quality coating are optimal;
- doors to the bathroom and other rooms with high humidity be sure to paint with compounds that are resistant to temperature extremes, moisture, protecting the product from decay.
Door paint should be thick and durable.
Manufacturers produce many options for tools, each of which has certain characteristics. For wood, compositions such as:
- acrylic paint belongs to the group of water-dispersion and provides a dense coating. The tool has a homogeneous structure and is easily applied to a wooden surface. Acrylic paint is suitable for interior doors installed in rooms with a low level of humidity;
- alkyd compounds are based on a complex of thick resin, rosin, glycerin and vegetable oils. Enamels of this type require drying for 2-3 days, protect the wood from decay and form a durable coating that is resistant to abrasion. Suitable for outdoor work;
- polyurethane products create a reliable coating that perfectly protects wood from moisture and scratches. The composition is easy to apply, as it is characterized by elasticity.
High-quality paint allows you to make the door beautiful and provide a durable coating
When choosing a wood treatment product, you should carefully study the information provided by the manufacturer and indicated on the label. This will determine the purpose of a particular paint option and the compliance of product characteristics with the required level. For example, for an entrance door, you need a material designed for outdoor use, which has high frost resistance, forms a dense coating and can withstand exposure to UV rays. Impregnation, varnish or paint must have the same base, otherwise the coating will quickly delaminate.
Video: choosing paint for wood
Processing a wooden door: applying paint
Door coloring natural wood requires certain tools. The composition can be applied with a brush or a special spray gun. In the first case, it is important to carefully and evenly distribute the product, and in the second case, the application is simple, but also requires precise movements. The use of a brush is optimal at home, since no preparation of the place for staining is needed. You can even not remove the door from the hinges, but only cover with film and masking tape those places that should not be painted. But in this case, you need to pick up a small amount of material on the brush to avoid streaks.
Painting the door with a brush can be done at home
Work with the spray gun is carried out in utility room or outdoors in dry and warm weather. It is important to avoid getting dust on the painted surface, which is necessary to obtain an even coating. Processing the door with an airbrush involves the following steps:
- Application masking tape on areas that are not stained. Long self-tapping screws are screwed into the upper and lower parts of the frame, and then the canvas is placed between two supports, that is, it must be in suspension.
The door leaf for painting can be placed on special supports
- Preparation and mixing of the dye, mixing the components if necessary (follow the manufacturer's recommendations indicated on the package label). If the product is thick, then it must be diluted with suitable components, which is indicated on the label. The placement of the composition in a special container of the spray gun, trial staining of test boards.
The paint composition is placed in the spray gun tank
- The method of short sprays is the application of paint to the surface. All areas of the canvas, panels and other complex structural elements are carefully processed. After the first layer has dried, a second layer is applied, if necessary.
The paint is applied along the wood fibers, which is important when using an airbrush, roller or brush
If the door is varnished, then opaque compositions treat the surface with sandpaper. This will improve the adhesion of paint with a lacquered structure. Only then can the paint be applied by the chosen method: roller, brush or spray gun.
Video: painting a wooden door with a roller
Lacquering technology for doors
The technique for applying varnish to a wooden door is slightly different from applying paint, but you can also use a brush or spray gun to work with it. In the second case, a more even thin layer will be obtained, emphasizing the natural structure of the wood.
The use of varnish allows you to make the door beautiful and emphasize the structure of wood
Varnish is presented in a wide variety and therefore it is important to know the features of the main options. Their classification varies depending on the field of application, but the means differ significantly in composition. So, the following options are distinguished:
- water-based acrylic varnishes are used only for interior work, as they have low resistance to moisture, mechanical stress, and temperature extremes;
- alkyd varnishes contain resins and vegetable oils, which makes them versatile, they are applicable for indoor and outdoor use;
- oil formulations form a thick and durable coating with a sheen. The duration of the drying period of the layer is about 48 hours;
- nitro-varnishes are optimal for interior work, dry within 15-25 minutes, apply them in several layers;
- epoxy varnishes require mixing of two components in the right proportions, can be used for outdoor or indoor work.
To obtain an even layer, the varnish is thoroughly stirred.
In order to cover a wooden door with varnish, you need to carry out the following steps:
- Study the instructions for use of the wood varnish used. The composition must be stirred slowly and thoroughly, which will ensure uniformity of color and quality of the coating.
Any varnish should be thoroughly mixed before use.
- The prepared composition is poured into the spray gun tank connected to the compressor. Test spraying is carried out on a test board. The door leaf is placed on supports, as is the case with paint. After that, proceed to the application of funds.
Lacquer is applied evenly and in several layers
- The composition is applied along the wood structure, observing equal, but very short intervals between sprays. After the first layer has completely dried, you need to process the doors with a grinder with fine-grained sandpaper, remove dust and proceed to further action. The second and subsequent layers are made only after each previous one has dried.
Lacquered door looks solid and stylish
Applying varnish with a brush is possible without removing the door from the hinges. In this case, the coating will be very different from the surface treated with an airbrush.
Video: phased restoration and varnishing of the door
Staining the door with stain
Stain is a color component that not only gives the wood a shade, but also protects the product from decay. Such a tool has a liquid consistency and can be applied with a spray gun or brush. Stains are available in the following options:
- aqueous compositions easily penetrate the wood structure and emphasize it, but the product dries for a long time and makes the surface rough;
- solvent-based stain provides a smooth surface, has a pungent odor and dries fairly quickly after application;
- oil and wax stain options are environmentally friendly and suitable for processing children's furniture, interior doors.
The stain may contain protective components
When choosing a stain, it is important to consider its purpose, for example, the product may be optimal for outdoor use. If processed front door tool for interior work, the canvas will not be sufficiently protected from moisture, and will also quickly lose color.
The technology of using stain is similar to the method of using varnish or paint. The main actions are expressed as follows:
- Placing the canvas on supports, preparing and stirring the product.
- Trial spraying the stain with a spray gun or applying to a test board with a brush.
- Uniform spraying or painting with a brush in one layer of the door leaf.
The stain is applied in a thin layer and evenly
The gap between sprays or brush strokes should be kept to a minimum. This will avoid border highlights and tint differences.
Video: wood stain application
Painting wooden doors necessarily involves the choice of a product that meets the operating conditions of the product. After that, the processing technology is carried out, and the result depends on the thoroughness of preparing the canvas for dyeing.
In order to general interior looked flawless at home and all the guests admired your impeccable taste, you must definitely pay attention small details. One of the most important attributes of each apartment and house are doors. Each door that leads to a bathroom, kitchen or corridor should look aesthetically pleasing and fit into the design of the room as harmoniously as possible. If it looks dull, then you should immediately deal with it. The first thing that comes to mind when reconstructing doors is varnishing them. But few people know how to varnish doors.
Lacquered doors have been decorating the home for a very long time.
The choice of a suitable varnish must be approached with all seriousness, since each surface has its own type of this liquid. Therefore, when choosing, the first step is to build on the material of the door. For uniform application coatings must also be remembered that they are constantly exposed to various temperatures and you need to choose resistant and high-quality.
Types of varnishes for wood
Over time, the tree acquires its rich shade, characteristic of seasoned wood, because experienced craftsmen It is strongly recommended to use colorless varnishes in your work. There is a lot of trouble with colored ones, since often the color applied to the tree differs significantly from the one indicated on the package. doors from softwood, covered with a transparent varnish, will look more impressive and expensive than if they are smeared with a layer of color coating. It is not necessary to use very expensive material if you do not have special skills in working with it, as this extra waste of money.
There are several types of coatings that are suitable for painting wood:
- Alkyd - based on a solvent, they are waterproof and capable of imparting a certain yellowness to wood. The average drying time of such varnishes is approximately 24 hours.
- Nitro-varnishes dry very quickly, but are much more toxic than the previous type. They can only be applied with a brush or roller. If you want to use a spray gun, then it is better to choose another option.
- Polyurethane - one of the most resistant types of coating for wooden bases. It also darkens the wood a little and needs a mandatory preliminary primer.
- Acrylic - water-based, odorless, completely safe, wear-resistant and durable. He is in fact the most the best option for painting wood, but its cost in comparison with the previous types is much higher.
You can choose any type of coverage
Door painting technology
For staining, you will need to prepare the following materials in advance:
- paint brush or roller
- paint spatula,
- sandpaper,
- varnishes,
- solvent,
- putty.
First you need to give the doors a horizontal position, after removing them from the hinges. In order to prevent the varnish from dripping onto the floor, put them on stools, and lay ordinary newspapers under them. Be sure to remove accessories for the time of painting. If the door was previously covered with paint, then by sanding with a sandpaper and a spatula, you need to remove the old coating. If cracks are present, they can be filled with putty. After the putty dries, be sure to go over the sandpaper and smooth out all the bumps. Remember that the more carefully you shoot old layer paint, the better the new paint job will look.
The second step on the path to flawless doorways is a primer. This material must be chosen very carefully, since it directly affects how evenly the varnish will lie and how long it will last. After the primer dries, the door is ready for coating. It is best applied with a roller. Using a brush for painting, you run the risk of leaving noticeable stains and stripes on the doors. There are two ways to apply varnish:
- pre-treated with stain;
- immediately after priming.
Stain significantly highlights the veins of the tree, so its use adds saturation to the natural pattern on the tree. Slowly mix the varnish with the solvent so that air bubbles do not appear in it. For ease of application, pour it into the tub. Evenly coat the surface of the door with varnish, make sure that there are no drips. In order to avoid visible transitions between strokes, the coating must be applied quickly, as it tends to dry quickly.
When everything is completely dry, you may notice that the surface has become rough. Do not be afraid of this: it should be so, you need to go through the sandpaper again, then clean the doors of dust and apply a layer of varnish again. You may need up to 3 coats to get a good result. Wait until it dries completely, and then turn over to the other side.
The procedure for painting doors at first glance may seem enough a simple matter but this view is erroneous. Often mistakes are made in the technology of applying varnish and instead of brightening up the appearance of the doors, you further exacerbate their appearance. After poor-quality processing, in most cases they are not at all suitable for use. Remember that all doors in a house or apartment must be of the same color, so stock up on enough of the same varnish, preferably even from the same batch.
Video on how to apply varnish on wood:
The fact that varnishes are toxic is known even to children, so make sure that the room where the painting will be carried out is well ventilated. Painting doors requires perseverance and great patience, all movements in the process of work must be neat and unhurried. You will have to spend a lot of time on the whole procedure, but what can you do: everyone knows that beauty requires sacrifice.
How to properly varnish the door, now you know. If you are confident in your abilities, you can safely start updating the interior of your home, but if you have any doubts, it is better to contact specialists who know their business and will paint the doors properly.
Nowadays, the tree still has not lost its relevance in construction, interior decoration, and furniture production. Therefore, a wooden door is an essential attribute of most premises, both residential and industrial. On the one hand, it is a material that is environmentally friendly, durable, and aesthetically pleasing. On the other side, wooden surfaces require special care. They are subject to atmospheric influences, absorb moisture from the environment, and can crack under the influence of sunlight. If a we are talking about a wooden door, then to give it a decorative effect, increase wear resistance, you should open its surface with a special varnish.
- Read how to choose
Varnish for a wooden door. How not to make a mistake in choosing
The range of varnishes for wood today is quite rich. In order not to make a mistake in their choice, you should know what properties each of them has. There are such types of varnishes for wood: acrylic, alkyd, nitro-cellulose, polyurethane.
- Won special popularity among the consumer today acrylic paints and varnishes. They are environmentally friendly, do not have strong odors, they can be diluted with water. But compared to other materials, they are less wear-resistant and durable. However, this disadvantage can be compensated if special hardeners are added to their composition. Prices from 300 to 1000 rubles per liter.
- Alkyd varnishes are considered more wear-resistant. Their main advantages are moisture resistance and giving decorative effect to painted surfaces. The disadvantages include a slight yellowness of the wood after coating, as well as a pungent smell of solvents with which it is diluted. In order to get a glossy sheen, you can use a urethane-alkyd varnish. The price is from 360 to 500 rubles per liter.
- If necessary, to lacquered wood dry quickly, use nitro-cellulose varnishes, or nitro-varnishes as they are popularly called. They are transparent, which form a shiny transparent coating on the wood, while maintaining its natural color and texture. There are also matte, after which the surface becomes slightly silky with a muted color. There are acid-cured nitro-lacquers with the addition of carbamide resins. They increase frost resistance, moisture resistance, protect against sudden changes temperatures. The advantages of nitro-varnish include reliability, durability, as well as accelerated drying rates. Its main disadvantage is increased toxicity. Therefore, it is best to apply such substances with an airbrush. The price is 320?600 rubles per liter.
- Polyurethane varnishes are particularly resistant. They are resistant not only to atmospheric influences, but also to hydrochloric and sulfuric acid, ammonia, mechanical damage - shock, abrasion, cutting. However, such material can sometimes darken the wood, therefore it requires a mandatory primer.
Preparing the door for varnishing
First stage preparatory work is the removal of the old coating, if any. In cases where paint is involved, it is better to use a building hair dryer or sandpaper. It is better not to use a remover for paints, since wood can absorb them and change their color under their influence. If it's about the old varnish coating, then you can use a special wash for such materials. The surface cleaning process should be carried out as carefully as possible so as not to spoil the appearance of the door.
The next step is grinding the surface in order to eliminate all irregularities and roughness. This should be done with sandpaper with a fraction from 60 to 180 (depending on how serious the flaws need to be eliminated). If such a procedure was not enough and the irregularities are still noticeable, you can use wood putty of the corresponding color.
In the photo, Drevotex (1 liter) is a preservative, hard-to-wash antiseptic for protecting wood, the price of a liter is 72 rubles.
Then, using a brush or roller, special substances are applied that protect the wood from fungus and bark beetle (wood antiseptics). Then the door is primed. Carrying out all these procedures, it is necessary to ensure that the impregnation, varnish and primer are on the same basis (it is better if they are from the same manufacturer). After priming, you should once again walk with sandpaper and apply a layer of primer again.
To apply varnish on the door, it is necessary to prepare a narrow roller and a narrow brush, a special bath and sandpaper No. 400. It is necessary to cover the door in a horizontal position, very quickly, so that the transitions are invisible. As a rule, the procedure must be repeated three times, waiting for the complete drying of the previous layer. After each application and drying, the flaws on the surface must be removed with sandpaper (except for the last layer).
Before varnishing, all hinges and locks must be removed so that the entire surface is covered and, accordingly, protected from various external influences. To get an idea of how the door will look after varnishing, you can make a few test strokes on its front side and wait for it to dry.
Watch a video with tips on how to properly restore a wooden door, how to apply varnish: