It is advisable that the installation of OSB on walls be carried out by specialists. OSB (oriented strand board) is a material that has gained popularity in the construction and finishing of houses. It has a large number of advantages that allow it to be used in exterior decoration dwellings, in covering internal walls and constructing partitions during the redevelopment process. Due to the growing demand for this material, it is worth considering what the advantages of OSB boards are and where they are used, as well as what finishing methods exist for this material.

Advantages and disadvantages of OSB boards

According to builders, finishing walls with OSB boards has a number of advantages:

1. Compared to other materials that are sold in sheets, OSB walls are relatively inexpensive.
2. The manufacturing method assumes resistance to damage, which ensures a minimum of defects during production, transportation and after installation.
3. They are lightweight, so installing the slabs on the walls does not carry a large load on the load-bearing structures. Also, due to their lightness, these slabs are easy to move from place to place and install with your own hands.
4. These slabs look attractive on their own. There are several options for additional decorative finishing.
5. This material is resistant to moisture, rot, fungal infection and is of little interest to insects.
6. The strength of the structure of the slabs does not prevent them from being drilled or processed in any other way.

All these properties make the material suitable for external and interior works. However, when choosing, you should pay attention to the reputation of the manufacturer. Some companies do not follow technology in order to save money, so their products turn out to be of poor quality from an environmental point of view. Such plates can highlight harmful substances. Any OSB product does not allow moisture and steam to pass through, so in rooms with such finishing it is worth taking care of adequate ventilation.

Applications

There are two main ways to work with OSB boards. Firstly, this is the rough cladding of the main wall, inside or outside. This option allows you to reduce the number of joints, level the wall and make it more durable. To achieve such results, it is worth considering a number of points:

1. The material is fastened every 30 cm in intermediate areas and twice as often at joints.
2. The outer edges are attached to the wall every 10 cm at a distance of at least 10 cm from the end of the sheet.
3. For ventilation, gaps are left between them, which are then filled with sealant. This is one of the main ways to provide ventilation for external walls.
4. When finishing a wall made of OSB boards, you should take care of protection from wind and excessive humidity. Taking into account the characteristics of the material, it is worth using a superdiffusion membrane for working outside; for finishing the inside, foil polyethylene is useful.

Other nuances in the question of how to cover a wall with OSB boards are discussed in the following video:

Secondly, to change the layout of the rooms, you can use OSB. For this purpose, installation on a wooden or metal profiles. Drywall is attached in a similar way. The difference between partitions made of OSB is the resistance of this material to deformation, therefore such interior elements do not bend under the weight of their own weight and are more reliably protected from cracks and other damage.

Since the base of the material includes wood in chip fragments, when making OSB boards they are coated with a special composition. It contains resins, wax or paraffin. It not only has a fastening effect, but also gives the surface evenness and smoothness, so additional finishing OSB walls associated with additional difficulties. Firstly, the outer layer does not have any adhesive properties. Secondly, some components contain fat and other substances that can leak through the external finishing work and spoil the final look, so you should consider options decorative processing material before finishing the OSB walls inside the house.

Finishing with paint or varnish

Painting or varnishing walls is one of the budget ways to decorate the walls of rooms. But in order for the layers to lie evenly, and there are no unpleasant surprises in the future, it is worth considering a number of points.

First, you need to inspect all the fastening points of the slabs for incompletely driven nails or screws that are screwed in. Such minor flaws can lead to manifestations rust spots through the paint. In the case of nails, it is worth using a nail hammer, since when working with a hammer, not only will the result not be sufficient, but the wall sheathing will also suffer.

If it is planned that interior walls will be painted, it is worth using to process the joints acrylic sealant, because the paint does not adhere well to the silicone type.

An obligatory stage of work is the surface. It will provide the material with greater adhesion properties. In addition, the layer will lie more evenly on the prepared surface and give the corresponding effect. After the first coat of primer, you need to pay attention to the condition of the pile. After such treatment, it can rise and the wall will lose its evenness.

To correct this defect, the surface must be treated with sandpaper and another layer of primer applied. After this, you can finish the walls of the room with varnish or paint. Depending on the humidity of the room, you can use an alkyd or acrylic option. In some cases it will also be suitable water-based paint. Some builders recommend acrylic varnish for walls.

For reliability and aesthetic beauty, it is recommended to apply the coating in 2-3 layers.

Preparing OSB walls for wallpapering

Wallpaper is considered the most popular option for wall decoration, so it is used in rooms with walls finished with OSB boards. Sometimes such a need arises in the process of redevelopment of space. So, before you make a partition, you should make sure that it is in harmony with the rest of the interior.

It can be used if there is a need for the finished wall to become universal for applying any type of decorative coating. With this type of wall treatment, you should pay attention to some features:

1. The putty is applied to a clean surface. The presence of dust, dirt or traces of other building materials on the wall can adversely affect the quality of the coating, so before applying the putty composition it is worth washing the wall well.
2. It is worth paying attention to ensure that the heads of nails and screws are recessed as deeply as possible, and top layer It is better to remove it with sandpaper. The surface for putty should be slightly rough.
3. It is better to treat the joints between the plates with nitro putty. This will ensure evenness and strength. As an alternative, you can use body putty, since its properties are designed for moving objects. In this regard, the composition has not only lightness, but also great connecting properties, and it does not collapse on the wall for a long time. After completion preparatory work a layer of putty is applied.
4. After applying the composition, you can begin priming the surface.

This option is convenient because now you can use any primer over the primer layer. decorative material without regard to the features of OSB boards.

OSB boards are universal material for covering the walls of a house or finishing rooms inside it. This raw material is used both to strengthen walls and create partitions. It is quite durable, lightweight and resistant to mechanical stress, humidity, fungus and insects.

To ensure that this coating lasts as long as possible, it is worth considering several factors before attaching OSB. This is especially true for the distance between nails and screws, as well as the location of the joints. The appearance allows the use of OSB boards without any decorative treatment. However, they can be puttied, coated with paint, varnish, or prepared for wallpaper. If technology is followed, the result will be smooth walls, which will be the basis for any interior and will delight its owner for many years.

With the development of new technologies in construction market There are many interesting materials for repair, construction and decoration. Thus, it has become widespread building material, known as OSB board - oriented strand board (sometimes the name OSB board is found). It consists of 3-4 layers of compressed and glued shavings, each layer located perpendicular to each other, which gives the material high strength.

Scope of application

OSB boards are widely used in construction - as sandwich panels for walls, in the construction of internal and external partitions, for flooring, as concrete formwork(OSB boards with lamination). Having such attractive possibilities for use, the OSB board needs protection from external factors. If the material will be constantly exposed to high humidity, it will eventually absorb moisture, swell and begin to delaminate. Therefore it is necessary to take care of the right conditions storage and timely processing during operation of OSB boards.

When stored in warehouses It is important to control the level of humidity, not allowing it to exceed the norm. When storing in open areas, the material should be covered with thick plastic film which will prevent moisture from entering.

Protecting OSB boards from moisture

Before using OSB boards, it is necessary to carry out a set of measures to protect against exposure to water:

• treat the material with an antiseptic against mold and mildew;
• After treatment with an antiseptic, coat the slab with weather-resistant acrylic varnish or varnish on water based for wooden surfaces. It forms a reliable film that will cover the edges of the slab, and it is through them that moisture penetrates most intensely;
• if the slab is located outside the building (cladding, partition), be sure to provide drains or plumbs along which precipitation will drain without hitting weak points - joints, ends;
• A common protection option is siding. It is important to understand that the slabs have low vapor permeability, and condensation formed on the back side of the siding will begin to destroy the wall in a year or two. Therefore, the cladding must be done with an indentation of several centimeters, with the obligatory use of waterproofing.

In addition to being used in construction and renovation, OSB boards are a popular material in furniture production. It almost completely replaced the previously used chipboard and plywood. Various types of OSB boards are made from structural elements corps and upholstered furniture: backs and bases of beds, sofas, wardrobes, shelving. Recommendations for protection from moisture in this case are simple: it is enough to avoid contact with water, so furniture made from this material is not used in rooms with high humidity.

If the operating and storage conditions are properly observed, structures and furniture made from OSB boards will last for decades; it is only important to follow these simple rules of protection.

When the building material from which the walls are made is oriented strand board (OSB or OSB boards), the question arises about the finishing method. The lining of the OSB board can be done, or. But the enamel surface is more affordable and easier to implement. It’s worth choosing what to paint the OSB board on the facade of the house with, mastering the technology and you can start finishing.

OSB boards are used for the construction of frame buildings or, so that it is possible. They have good insulation and strength, although this material is not sufficiently moisture resistant. The raw material for the production of OSB is non-working coniferous wood or wood processing waste. OSB facades can be subject to deformation under the influence of water. However, it stands out due to its environmental friendliness, practicality, ease of processing and installation.

Construction experts advise using OSB-4 or OSB-3 boards for cladding the outside of a house, but the second option is considered less preferable. You can sheathe the outside of the house with OSB of the third group, but it does not have special protection from moisture, so it must be additionally processed. OSB-4 is significantly more expensive, so exterior finishing of a house using OSB boards is not done very often when constructing economical buildings.

Since the basis of the OSB board is pressed shavings, process the OSB to exterior finishing You can use any paint compositions that are suitable for wood material. Limitations are determined solely by aesthetic features. In particular, there is no need to choose transparent varnishes or glazes. The chip texture is not endowed with special beauty, so it does not need to be put on public display.

In addition to painting OSB boards, it is also suitable. described in detail in the corresponding article, it will not have any special features if the base is an OSB board. You can perform plastering with or without insulation. Pay attention to the primer, it increases the adhesion of the base, i.e. plaster composition fits and attaches better. In this article we will talk in detail about how to paint smallpox on the facade.

Which paint to choose?

Before deciding how exactly to paint the OSB board on the outside, you need to select a suitable paint and varnish product. OSB is made of wood, so experts recommend using it. Moreover, it is necessary to select only the one that is intended directly for facade work.

You can consider the most popular types of paints that can be used to cover an OSB slab outdoors:

• Acrylic paint. Best option How to paint an osb board, both in terms of price and service life. Quite an unpretentious paint, it is easy to apply, it is resistant to different climatic conditions. Diversity color range, which is created thanks to colors, is considered an obvious advantage of this painting option.
• Oil paint. Painting OSB boards with oil paint is done in an increasingly less common way due to a significant number of disadvantages. It is quite toxic, retains streaks and takes a long time to dry. The duration of preservation of such a surface leaves much to be desired - under the influence of sunlight and time, it is subject to fading and peeling. The cost of such paint is above average.
• Latex paint. This is the most expensive material, but at the same time the most attractive. The latex surface is distinguished by its own density and strength and is reliably protected from impact, scratches and climatic factors. The coating easily stretches during various deformations of the base. Such paint is considered completely impervious to moisture, which is by no means always good. This is explained by the fact that for long-term and normal operation, wooden boards need to “breathe”.
• Alkyd enamel. Main positive aspects This option is favorable cost, resistance to sun rays and low temperature conditions(up to minus thirty degrees). The enamel dries quite quickly (within ten hours). At the same time, enamel is highly flammable and has a pungent and not very pleasant odor.

In order to paint OSB facades, they also use varnish, which is intended for external work. It must contain inhibitors that prevent the negative effects of ultraviolet rays.

Not everyone is satisfied with the aesthetic properties of varnish, which is why much more often citizens choose opaque coating compositions.

How to paint OSB board correctly

Paint for OSB slabs on the outside may be uneven. Therefore, it is important to know particle board.

The structure of the tile ends is more porous, and therefore their ability to absorb is greater. In order for the density paint and varnish material and the tone on all sides was the same, the edges need to be puttied or.

Before painting the edges of the slab, you need to sand the corners, rounding them a little. Otherwise, the surface will become unevenly colored. If the texture of the OSB is damaged, then you will need to putty the entire slab before starting to paint the surface.

Applying a primer is considered a mandatory procedure. It makes the coating more even and improves the adhesion of paint to wood. As a result, the service life of the decorative finish is extended.

Painting OSB boards should be applied in two layers, and sometimes three or four paintings are required. This is caused not only by the need to protect the OSB board from the outside from negative external factors, but also by aesthetics. Through thin layer paints show through chips of building materials, negatively affecting the appearance of the facade.

It is important to consider that each subsequent layer must be applied only after the previous one has completely dried.

To extend the service life of decorative finishes and facades, it is necessary to use antiseptic protection. This does not apply to OSB-4, since during manufacturing it is treated with all the necessary impregnations.

Painting OSB boards step by step

It is necessary to correctly follow the technology that allows you to effectively paint OSB, namely, perform the following steps in turn:

1. Make filling interpanel seams using sealant, in particular acrylic.
2. Carefully clean and prime the slab coating.
3. When applying paint and primer, it is important to pay special attention to the ends, since they are considered the most vulnerable point of sheet building materials.
4. The edges of the OSB must be painted until all sharp corners are visiblely rounded.

Examples of paint and primer selection. Stamps

In order not to carry out experiments, wondering how to paint the OSB board on the outside and what primer the paint will be combined with, it is easier to make a choice in favor of those options that have already been tested and really work when finishing is done. This will save time and cash and will also ensure durability.

Combining a primer called “Aqua Primer-3130” with a paint called “Aquatop-2920 - 04” brings good results. For a dense and high-quality decorative finish, only 2 layers of paint composition are required. The result is a smooth, waterproof surface with high protection from ultraviolet rays. You can use detergents for cleaning later.

There is a more economical way to successfully combine colors. Namely, a primer called “Teknol-2881” together with a paint called “Nordica Eco-3330”. This combination, according to its own parameters, is not much different from the previous one, but is not very well able to withstand the negative effects of household chemicals.

Wish

Execute decorative painting OSB boards are simple and inexpensive. It is enough to complete proper preparation coating, grind sharp corners, prime the walls and apply a suitable paint and varnish material in several layers.

All that remains is to choose a color scheme that fully meets your personal preferences. Your home is your rules.

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Owners frame houses People often wonder how to paint an OSB board on the facade of a house. Oriented strand board (OSB) looks unsightly, but every owner wants to make their home especially beautiful.

Lightweight OSB boards are formed from chips and wood shavings by pressing and gluing. This is an environmentally friendly material, warm, breathable, but susceptible to atmospheric agents.

This is due to its design: two outer layers consist of longitudinally directed chips, and the third, inner one, of transversely directed chips. Layers of wood chips are impregnated with glue, but are still susceptible to moisture, fungus, and other negative influences, and she looks unattractive. The owners prefer to paint the outside of the slab:

• for protection from moisture and destruction;
• as an antibacterial treatment;
• to give the facade an attractive appearance.

If necessary, we will paint it, we will try to turn our house into a cozy, beautiful little house.

Let's try the slab to the touch - it is uneven, rough, on both sides. Good or bad:

On the one hand, painting will not be easy - the paint only applies smoothly to a surface that is perfectly free of dust, burrs, puttied, and primed. And what we have are continuous tubercles and pits.

On the other hand, everything even and smooth is boring. And we can create something unique. So it turns out that painting OSB (as OSB board is also called) is a troublesome, but interesting task. Then we will choose what to paint OSB on the outside of the house.

Maintaining the appearance and structure

Many people like the unusual texture of OSB boards, and they do not want to cover the natural pattern of wood chips. Whereas they paint an OSB board that has an unusual appearance to both preserve the beauty of the wooden structure and protect the house from bad weather.

On video: methods of decorative coating of OSB panels.

When deciding how to cover an uneven surface, consider covering it with clear paint with a UV filter. This varnish is created on the basis of alkyd resins; its components reliably protect the slab from external aggressive influences. The varnish gives a matte tint to the chipboard and preserves the pattern and structure.

Transparent varnish can be:

• water based;

• oil based;

• on acrylic base.

A matte or semi-matte acrylic varnish for exterior use will give a beautiful look to a painted slab. It is convenient to apply, and to obtain better effect You can treat the surface of the OSB board with water-based impregnation.

Paint with stain

stain different shades will help emphasize the texture of the wood, while the composition will protect the slab from destruction. The choice of color is due to the variety of stains on the building materials market:

• chestnut;
• cherry;
• nut;
• tobacco;
• wenge.

Technology for coating OSB boards with stain:

1. Apply stain with a spray gun or brush.
2. Leave until completely dry.
3. Apply the primer.

After covering the wall with stain, you can create an effect on it artificial aging, covering the surface with patina. After it dries, remove the remaining composition with a soft sponge and cover the wall with colorless varnish. The varnish will protect the surface and give it additional effect.

Paint selection

Let's look at each: the choice of paints suitable for OSB is wide, and you need to know the advantages of each paint. When choosing what to paint an OSB board with, you need to pay attention to the following types of paint:

• Oil paint. This type of paint has been known to everyone since ancient times - it is well absorbed into the surface, does not require special storage conditions, and is diluted with drying oil. It's so simple - you pick up a brush, and underneath it appears beautiful surface. But oil paints may contain toxic substances in their paint composition and are inferior to almost all modern compositions: they take a long time to dry, are not resistant to atmospheric influences - you will have to renew the coating every year. They can be used for renovations in a house, on the floor, and if we are talking about a whole house-house, then it is too expensive - both financially and in terms of time costs.

• Acrylic paint. A modern, already popular option is painting the OSB board on the facade of the house with a special acrylic composition for outdoor work. Acrylic paint, consisting of polymers, water and a dye - color, creates a durable film on the surface after painting. This composition fits well on an uneven surface, so you can choose this option for painting the outside of OSB boards. Acrylic paints are widely represented on the building materials market: beautiful rich colors, the ability to choose matte and glossy compositions will help turn your house into a miracle mansion. Advantages of acrylic paint:
  • does not spread, fits well on a porous surface;
  • dries quickly;
  • does not fade under the sun;
  • has high vapor and water permeability;
  • resistant to temperature changes and various weather conditions.

  We can conclude: acrylic paint OSB boards can be painted.

• Alkyd paint for OSB boards is often used; its popularity can be explained simply - it dries quickly and absorbs well. That's what you want from paint. Besides this:
  • durability;
  • reasonable price;
  • no drips;
  • no unpleasant odors.

  One small fly in the ointment in a barrel of ideal paint - low resistance to fire and alkalis. It can only be stored at temperatures above zero, because it is based on a water component. But after painting, alkyd paint hardens, and even 30-degree frost does not matter to it. That's why she's so popular.

• Latex-based paint for OSB boards adheres well to wooden surfaces, good result provided - textured or dense surfaces, matte, shiny or semi-glossy. Latex paint consists of acrylic resins, latex polymers, and to improve performance qualities Silicone, polyvinyl, and other additives are added to them.

• When asked if it is possible to paint outer wall at home with water-based paint, you can answer the question - why not? Silicate and silicone water emulsions, after drying, form a resistant vapor- and waterproof surface that repel dirt and dust.

Painting technology

How to paint OSB boards? First you need to prepare the material itself. The slabs need to be primed, then the covering enamels will lie more evenly. The only problem is that the surface of the new slab is smooth: the primer collects in drops. Therefore, do not waste time - if you decide to paint a new slab, do not treat it with OSB, but immediately start painting.

After standing for a while, the slabs become rough; they absorb the soil composition well. Therefore, before painting OSB slabs, they are impregnated with Ceresite.

If you decide to paint OSB boards carefully following all the technology before painting, the stages of preparatory work will look like this:

1. Surface priming.
2. Installation of fiberglass mesh.
3. Puttying treated surfaces.
4. Painting.

Floors made of OSB boards are treated in the same way before painting. With this step-by-step work, the result will please you. But you can apply paint or enamel directly to the finished surface in different ways:

• spray gun;

• wide roller;

• with a brush.

Which method to choose - see for yourself. You can quickly paint a house with a spray gun, but only in the absence of wind. Brush – long, roller – longest best option. If you take a wide roller, you can cover the surface of the house facade quickly and evenly.

Painting the slabs should be carried out in several layers - this way the paint will lie more evenly, creating a dense, bright film on the surface. Start painting from the top, so the paint will not flow onto the already painted surface. Work should be carried out outdoors in dry, windless weather.

Well, our miracle house is ready, and not every passerby will guess that under an even layer of enamel there are initially unsightly OSV panels. The painted facade of a house is easy to maintain and unpretentious - wash painted surfaces periodically, do not use aggressive abrasives that can damage the surface - and admire the results of your labor.

Tips for creative finishing of OSB boards (1 video)

IN modern construction are very widely used oriented particle boards. In the English abbreviation they are designated OSB. Among our craftsmen, they are more commonly called OSP, or, to Russify the original abbreviation, OSB. This does not change the essence - the slabs have gained well-deserved popularity thanks to their technical and operational characteristics, quite affordable price. They are made from large wood chips, which make up at least 90% of the total volume, and binders - formaldehyde resins or polyurethane compounds with paraffin-wax impregnation.

OSB is commonly used as a structural material. It is generally accepted that they are suitable only for rough surfaces that require subsequent covering with one or another finish. But this is not true at all. It turns out that OSB surfaces lend themselves well to painting, and if desired, they can be turned into a real work design art. Information on what and how to paint OSB when interior decoration houses or apartments will be given in this article.

OSB boards can be divided according to different criteria. This is the level of moisture resistance and strength, the presence of locking joints, the environmental friendliness of the material, and the thickness of the sheets.

According to their physical and technical characteristics, oriented strand boards are divided into four types. Each of them has its own purpose. Therefore, when purchasing building materials, it is necessary to take into account the conditions under which they will be used.

• OSB-1 does not have high strength and moisture resistance. Therefore they are usually used as auxiliary material. Their cost is low, and they are often used, for example, to create temporary formwork. After dismantling it, it will not be a shame to dispose of the used parts.
• OSB-2 - characterized by fairly high strength, but not outstanding moisture resistance. As a construction material, they can only be used for interior work and exclusively in dry rooms. Suitable, for example, for covering light partitions in a room.
• OSB-3 are products that can be called universal. The boards are used both in dry rooms and in conditions of high humidity, including outdoors. They cover walls, form interfloor ceilings, they are used to lay rough and “clean” floors under decorative coating. They are often used as a material for continuous sheathing under some types of roofing coverings.
• OSB-4 - products with high moisture resistance and excellent strength. Therefore, they can be used in various fields of construction, including to create self-supporting loaded structures.

The slabs are most often produced in sizes 1250×2500 or 1220×2440 mm. Thickness range – from 6 to 25 mm. There may also be other dimensions in length and width - this is worth paying attention to. Sometimes non-standard sizes allow you to choose the best option for a specific coverage area. That is, they make it possible to avoid a large amount of waste when cutting material.

OSB boards can be regular or tongue-and-groove.

• Conventional OSB sheets have smooth edges. When covering surfaces at joints with them, it is necessary to maintain a technological gap of 3÷5 mm, which will keep the coating intact during thermal expansion material. Such slabs must be rigidly fixed to the base using self-tapping screws screwed in at intervals of 350÷400 mm. Large sheets It is recommended to fasten OSB not only along the perimeter, but also additionally along the diagonals.

• Tongue-and-groove slabs are equipped with a tongue-and-groove joint lock. This option is more convenient when the slabs are planned to be used as finishing coating, including for further painting. The joints are more accurate, and the gaps between the plates are practically invisible. When attaching tongue-and-groove OSB boards to a flat base, you do not have to use many screws. In addition, the products can be used for floating coating when installed on a concrete base.

Another important criterion for choosing OSB boards is the materials used in their manufacture. This parameter is especially important if the slabs are purchased for covering surfaces inside residential premises.

Formaldehyde resins can be used as a binder for wood chips, which release toxic fumes into the environment. Such materials have a formaldehyde emission class of E2 and higher, and for internal use– unsuitable.

OSB boards produced according to European standards and marked “ECO” or “GREEN” are suitable for this application. The production technology excludes the presence of toxic compounds in the material. Wood raw materials are pre-treated with paraffin-wax impregnations, and polyurethane resins are used as a binder, which after polymerization become completely harmless to the environment.

The level of formaldehyde emission is indicated by the assigned class. E1 can be considered acceptable for residential premises, but E0.5 is better. And the best option is the already mentioned above “ECO” sign.

This option is fully suitable for residential premises. And it can be safely used for painting.

But in order to guarantee the “purity” of the material, when choosing it, you need to carefully study the markings on the sheets. And this information must be confirmed by a certificate of quality (conformity), presented by the seller at the buyer’s request.

What paint compositions are used for OSB boards?

Variety of paints and varnishes suitable for OSB

To paint wood and products made from it, as a rule, several types of protective and coloring compositions are used:

• - dispersed, made on the basis of polyacrylates and their copolymers, which act as film formers. When hardened, they form a fairly strong polymer layer on the surface of a wooden slab. This type is used for painting both internal and external surfaces. These are environmentally friendly compounds, they protect wood from moisture and have an affordable price.
• Polyurethane paints They also create a protective and decorative layer on the slab. This composition is used mainly for interior construction and finishing work.
• It is characterized by high elasticity and resistance to detergents. These compounds are non-toxic and are excellent for painting interior surfaces.
• Alkyd coloring compounds are produced on the basis of alkyd resins. The film formed on the surface of OSB has higher strength, in contrast to aqueous solutions. Alkyd paints do not contain toxic substances, they can effectively protect the material from moisture and ultraviolet rays, are resistant to fading and dry quickly after application. When painting, the paint emits a strong odor, so the room should be ventilated.
• Oil paints They have a thick consistency, so they form a distinctly thick layer on the surface. They are great for applying to the end faces of slabs, as they can protect them from moisture absorption. Paints have a specific smell that disappears for a long time after application. In addition, oil paint, unlike those mentioned above, requires a longer drying time.

In addition to universal paints for all types of wood, there are compositions specifically designed for painting OSB. They are usually called primer paint and have the following features:

• They are able to create reliable protection oriented strand boards from external exposure to moisture and ultraviolet radiation.
• The composition has excellent adhesion properties to the surface of such plates.
• High elasticity and vapor permeability are noted.
• The density of the layer prevents the natural color of the OSB from showing through.
• Primer paint is produced in a basic white color and can be tinted to the desired shade.
• Primer paint is an environmentally friendly composition. It is made on a water basis with the addition of a special acrylic polymer, mineral fillers and antiseptic additives.

The primer can be used as a base coating, or to prepare the surface for the subsequent application of a decorative layer.

Criteria for choosing paint for interior work

When choosing a composition for painting OSB indoors, you need to consider some factors:

• The type of wood chips and type of binders used in the production of strand board.
• Decorating method, that is, it is planned to preserve the structure of the surface of the slab, or to make it smoother.
• Area of ​​application (floors or walls).
• Features of the room in which it will be carried out

Paint should be selected based on the following recommendations:

• Considering that OSB boards consist of 90% wood raw materials, oil paint will be a universal coating for them. Such compositions are distinguished by high quality brands"Coloray", "Syntilor" and others. They have excellent adhesion, minimal absorbency, and the base on which the paints are made (drying oil) significantly reduces material consumption. Oil paint forms a reliable, durable protective layer on the surface, so it is well suited for painting OSB boards laid on floors.

• Alkyd enamels are well suited for painting both walls and floors. They also create a durable reliable coverage. However, the consumption of this type of coloring composition exceeds that of oil-based ones.

• Water-based paints are not very resistant to moisture. They are well suited for painting walls in dry rooms. These are environmentally friendly compositions, so they are used to decorate the walls of residential premises - children's rooms and bedrooms. The brands “Tikkurila”, “Teknos”, “Sadolin”, etc. are considered one of the best on the Russian market. By the way, some of the compositions are still resistant to regular wet cleaning.

• For finishing OSB surfaces, especially if they cover rooms with high humidity, polyurethane paint made on the basis of organic solvents. Traditionally high quality similar paints from the brands “International Paint”, “Sterling” and “Coatings” differ. When polyurethane compounds are applied to OSB, they create, in combination with the resins contained in the material, high strength connections, which makes the coating durable and wear-resistant.

• If you plan to preserve the original structural pattern of OSB, as well as improve the quality of the surface, the walls are coated with water-based transparent varnishes.

• If OSB is planned to be laid as finishing material on floors, and it is necessary to achieve a smooth surface, an epoxy composition can be used for coating.

The surface can be decorated by giving the composition the desired color or by adding certain inclusions (glitter, chips, etc.) to it. Or they retain the natural color and pattern of the slabs. And the epoxy composition is applied using the technology used to create a self-leveling polymer 3D floor.

Self-leveling polymer floors - a bold solution in interior decoration

The decorative nature of such coverings is not limited at all - it all depends on the imagination of the owners. Self-leveling floors are often built on concrete base, but a well-prepared, stable OSB surface will also be a good base for them. And how the filling is carried out - read in a special article on our portal.

How to paint OSB

Preparatory work

Before painting, the slabs must be prepared. This is necessary so that the paint adheres well and sticks to the surface.

If you plan to cover the walls and ceiling with strand boards, then it is easier to carry out the preparatory work even before installing the boards on the sheathing.

Depending on the chosen painting technique, it may be more profitable to do it in advance, before installing the sheathing. This is due to the fact that some of the decorating methods involve several stages of cleaning and painting.

• So, the first step is to clean the entire surface using a hand-held sanding machine, onto which a sandpaper attachment is attached.

If you plan to preserve the textured pattern of the OSB, then an sanding attachment with a medium-sized grain (approximately P120) is selected for sanding to free the surface from the protective layer of binders. If the slab needs to be leveled to smoothness for continuous painting, then the cleaning is carried out first with coarse grains (P80), and then with fine grains (P200 and above).

After removing the top protective layer, the primer or paint will easily penetrate into the structure of the material.

If OSB-3 or OSB-4 boards are purchased, then their cleaning should be carried out most carefully, since they have a more reliable varnish coating on the surface.

• The second step in preparing the slabs is to mask the seams and screw heads. Used various means. This, for example? It can be ready-made parquet on an oil-adhesive basis or a special elastic one. A sealant or special elastic tape is used.

If the joints and holes from the screws need to be completely hidden, preserving the natural color or making it several tones darker, then sawdust should be added to the putty, which will remain when cutting the sheets. In this case, the gaps must be filled very carefully, without going beyond them. And if necessary, after hardening putty mass The seams are cleaned with a grinding machine with an emery attachment.

If the surface should be smooth and uniformly colored, then elastic tape is used to mask the seams.

• The next step is to apply a primer to the slabs under a solid monochromatic painting, which can be polyurethane-acrylic, acrylic or alkyd varnish. The choice of composition depends on the paint base that will cover the surface. When using water-based varnish as a primer, it must be diluted in a ratio of 1:10 with water.

When choosing an alkyd varnish, “White spirit” is used as a thinner.

Besides these options? For preparatory work, adhesive primers are used, for example “Aqua Filler”. This type of primer is designed to insulate wood from paint coating. Such compositions are especially suitable for coating slabs made from coniferous species wood, since the soil will prevent the resin from bleeding onto their surface.

In addition to the primers listed above, for preliminary preparation A special primer-paint can also be used for painting OSB.

OSB painting

So, OSB boards can be painted in one color, maintaining the texture or leveling the surface to smoothness. This type of painting is not difficult to perform - it is not particularly different from the usual application of paint on any other base.

The painting process will go quickly if you prepare the slabs correctly. However, there are other techniques that can change the slabs beyond recognition, reliably hiding the joints and fasteners.

This is what the slab will look like if you simply apply paint to it with a roller or brush. This option is unlikely to be suitable for residential premises. Therefore, some home craftsmen and professional finishers are developing and putting into practice more creative options painting OSB boards.

There are several available options available.

The first option for decorating OSB

In this case, the floors are finished using multi-layer painting technology. Achieving this effect will require a lot of time and patience.

To paint the floor, you need to prepare several tones of the same color. The work occurs in the following order.

• The first thing that is recommended to do is to draw up a sketch of the future floor design. Moreover, it is advisable to execute it in two versions - graphic and color. The sketch will clearly show what the finished coating will look like and will also help in further work.
• The slab is completely painted with primer-paint of the base color. The lightest shade of the selected color should serve as the base. To apply paint you must use a spray gun. This application will ensure that the paint gets into all the recesses. textured surface, while maintaining the surface topography.
• To emphasize the depth of the relief, the floors can be lightly sanded with a sander.
• Now the entire painted surface is divided into fragments shaped like stones or other elements. The marking is carried out based on the drawn up sketch, first with a simple pencil. And then it is “raised” with a brush and paint 4-5 tones darker than the base color.
• The next step is to paint each fragment of the coating with paint of a different tone, which must be prepared in advance.
• Next, each of the fragments is cleaned. At this stage, it is not necessary to process the entire surface; you can clean one or two sides of the stone, simulating its volume.
• Then the contours of each of the stones are drawn again.
• After drying, the surface is coated with varnish, the base of which is selected depending on the type of paint.

This color option is only available creative person who knows how to work with paints.

Second option for decorating OSB

If you don’t want to come up with the shape and size of the stones, you can go another way. Specifically, lay out a covering of square slabs small size. Adjacent panels are laid so that the direction of the laid chips is perpendicular to each other.

This option will allow you to create an original textured pattern of the floor covering and well disguise the joints between the slabs.

If the OSB has a color that satisfies the home owner, then the coating can simply be coated in several layers with varnish or epoxy, having previously cleaned the surface. If the shade is not completely satisfactory, it can be changed using stain or the technique suggested below.

However, it must be taken into account that the slabs will have to be cut into separate fragments, the edges of which must be perfectly smooth. In addition, this type of flooring will look aesthetically pleasing only on a perfectly flat base.

The third option for decorative painting of OSB

This method of painting slabs is accessible to anyone, even an inexperienced craftsman. The main thing in this process is to follow the instructions provided by the professionals.

The photo shows an example of painting OSB, which is used to cover the walls inside the house. In this case, two colors of paint were used for decoration. But if desired, more of them can be used, depending on the desired result.

How the process of decorating OSB is carried out using this technique will be presented using the example of small sections of slab in the instruction table.

To work in this case, the tools used were a Kremlin HTI spray gun with a 1.8 mm nozzle, a grinder with sanding attachments with grain different sizes, and a special sponge with an abrasive surface.

Illustration	Brief description of the operation performed
	So, the first step is sanding the surface. A grinding machine with an emery attachment with P180 grain installed on it is used. The process is carried out without strong pressure, since only the protective layer needs to be removed from the stove.
	Since paraffin or wax, as well as resins, are used in the manufacture of OSB, the surface of the board must be coated with a barrier primer. It will delay the penetration of resins and paraffin on the decorated floor covering. In this case, barrier soil FI M 194 is used. Soil consumption will be 50÷60 grams per 1 m². The primer is applied using a spray gun. The drying time for this layer is one and a half hours.
	The next step is to apply a pigment primer to the entire surface of the slabs, which will become the basis for creating a color scheme finishing material. In this case, polyurethane primer is used white. The consumption of pigment primer will be 90÷100 grams per 1 m². The time required for the coating to dry under normal conditions is 3÷4 hours.
	When the soil is completely dry, the part must be sanded again, installing it on grinder sandpaper with grain size P320. After sanding, the surface must be thoroughly cleaned of dust using a vacuum cleaner.
	To create the effect of a delicate shine, the next step is to apply the “Mother of Pearl Effect” composition to the surface. The consumption of the wet applied layer will be 100÷120 grams per 1 m². And then 40÷60 minutes are given for the composition to dry.
	Patina paint is sprayed on top of the mother-of-pearl layer, also using a spray gun, which will give the effect of “noble aging.” The consumption of this composition is 60-80 grams per 1 m².
	5-7 minutes after spraying the patina, its excess must be removed with an emery sponge (block) with P320 grain. Then the entire surface must be thoroughly cleaned of dust with a vacuum cleaner.
	This photo shows the result of the work done. He is already quite capable of becoming the final option. But if you wish, you can continue decorating.
	The next stage is spraying tinted paint over the slab. acrylic varnish, mixed with stain. Instead of stain, another painting composition can be used. The main thing is to take into account that the composition of all the solutions used for coloring were organically combined with each other. In this case, a zero-gloss varnish was used. Its consumption will be 80÷100 grams per 1 m². This layer should dry for one and a half hours.
	As it dries varnish coating The color may change slightly, but its dullness will increase. This factor must be taken into account when composing the shade of stain or paint.
	The finish can be matte, glossy or soft touch. “Soft-touch” literally translates as “soft to the touch.” This is a special rubber-like elastic matte paint coating. This option is perfect for wall surfaces.

When choosing this coloring technique, great opportunities for creativity open up. It’s quite possible to come up with your own options that will please the eye.

As can be seen in the examples shown, in any case, the specific surface structure of oriented strand boards can be “played up” for the benefit of the overall decorative effect of the coating. That is, painting OSB may well be considered a full-fledged finishing technology.

At the end of the publication, there is a video that demonstrates another easy-to-do-it-yourself method of original painting of an OSB surface.

Video: Original method of coloringOSB

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