Here you will receive detailed information about how and with what to paint an OSB board on the outside and what difficulties may be associated with the choice of paint. This one appeared building material relatively recently. The correct abbreviation for these boards is oriented strand board, or OSB for short. Oriented strand board (OSB) is made from waste wood and needs to be protected from water and rot. Like other wood, OSB needs to be painted to protect it from moisture and, ultimately, from rotting and decay if it is located outside.

There are four classes of boards in total: from OSB-1 to OSB-4. Each class has its own purpose:

OSB-1 is used in indoors as furniture elements;

OSB-2 is used in the production of composite I-beams floors;

OSB-3 has the same application as OSB-2, but at high humidity;

OSB-4 is also used in the production of composite I-beams for floors with increased load and humidity. In terms of strength characteristics, they rank after plywood and are ahead of chipboard.

In addition, the slabs are varnished, laminated and made with a tongue-and-groove joint. All four types of OSB boards, if they are located outside, need protection from mold and putrefactive fungi.

Did you know that oriented strand boards come in different thicknesses: from 6 to 22 mm.

Experts recommend using OSB-3 and OSB-4 for exterior work, but the first option is less preferable. Slabs of the third category do not have special protection against moisture, so they require additional processing. OSB-4 is much more expensive, so it is rarely chosen for facade work in the construction of economical housing.

The technology for preparing facades made of OSB boards for painting is the same for all types of paints.

Pore ​​filling

First of all, it is necessary to fill the pores that the OSB board has. Each tree contains hundreds of microscopic pores per square centimeter for the passage of water and nutrients. After the OSB board is formed and pressed, the sheets are polished. After grinding, microscopic pores open, and not only moisture can get into them, but also spores of mold and putrefactive fungi.

If the consumer wants to leave the natural appearance of the OSB board and cover it with a transparent wood varnish, then a special filler varnish must be used.

Grinding

After the first application, the surface is sanded. This is a required step.

Sanding is done because the varnish raises microscopic fibers and the surface becomes like a hedgehog. These fibers are removed by sanding.

After the first layer of filler, apply the second. To obtain a high-quality surface, each subsequent layer of enamel or varnish is sanded. If such quality is not required, then grinding the primer or filler does not need to be done.

Before painting OSB, you need to select a primer. Its purpose is to fill pores in wood and create a preparatory layer for painting.

Primer

The industry produces five types of alkyd primers, and only glyphthalic is suitable for OSB. It is universal and suitable not only for wood, but also for concrete, glass and other materials. Glypthal primers (GF) can be used indoors and outdoors. They are liquid and easily penetrate into pores.

Their use not only significantly extends the service life of OSB boards, but also makes the painted surface water-repellent. Apply GF primer with a brush or roller. Drying time at room temperature is at least 24 hours.

Glypthal primer is fire hazardous and toxic. It is recommended to use it outside or in a ventilated area; a respirator will not help here.

Tip: before applying primer, you need to remove dust from the surface, preferably with a vacuum cleaner.

OSB boards must be primed several times intermediate grinding each layer until you get a flat and smooth surface. Why do you need to sand each layer? The fact is that the soil, filling the pores, creates a waviness that is invisible to the eye. And although these waves are measured in hundredths of a millimeter, in the sun, due to light and shadow, the OSB surface receives spots visible to the eye.

What to paint: types of paints for facades made of OSB boards

For exterior painting oriented strand board is recommended for use four types paints

Alkyd paints

After priming and sanding the OSB, you can begin painting with alkyd enamels. The base for this paint is alkyd resins. This synthetic substance is obtained by processing vegetable oils organic acids at high temperatures. This paint is applied with a roller, brush or spray. To get high high-quality surface Each layer must be sanded, and after each sanding the dust must be removed.

The main advantages of alkyd enamel are: affordable price, resistance to sunlight and low temperatures (up to -30 degrees). It dries quite quickly (up to 10 hours), but is flammable and has a strong unpleasant odor.

Acrylic paints

Acrylic paints are a suspended water-dispersed mixture of dyes in a solution of acrylic resins and polyurethane. Distinctive feature acrylic - the use of water as a solvent, due to which this type of paint composition has become widely popular for external and interior works. Before staining OSB boards it must be coated with an acrylic primer.

Acrylic paints for wood are opaque and after they dry, a durable film remains. To achieve different design effects, special substances are added to the paint - plasticizers to give it beneficial properties. Acrylic paints come in matte, semi-matte and glossy.

This best option- both in terms of cost and duration of operation. Quite unpretentious paint, easy to apply, resistant to various weather conditions. The richness of the color range created using tints is a definite plus.

Oil paints

Oil paints are not suitable for external use in conditions of high humidity, although there are oil enamels for external use. This type of enamels was invented back in the last century. During this time, many paints with better characteristics appeared.

Preparation of OSB for oil paints is the same as for alkyd paints described above.

The OSB surface must be clean, dry, and free of grease. Primer for oil paint is applied to the slab. On top of the primer - at least two layers of paint. To obtain a high-quality surface, each layer must be sanded.

It is becoming less and less popular due to a large number of shortcomings. It is toxic, leaves streaks and takes a long time to dry. The durability of such a coating leaves much to be desired: under the influence of the sun and time, it fades and peels off. The price is above average.

Latex paints

Latex paints are obtained from the sap of rubber plants with the addition of thickeners, pigments, and plasticizers. They have excellent decorative properties. After removing the solvent, an elastic, durable film remains on the surface.

This paint is abrasion-resistant, not afraid of water, and can be washed. It comes in matte, semi-matte and glossy. To obtain gloss or matte, special solvents are added to it in small quantities.

Before painting OSB facades, it is necessary to apply a latex primer. To obtain a high-quality surface, the requirements for slab preparation are increased. It must be cleaned of dust and dirt. Paint with rollers or a long-haired brush.

This is the most expensive, but most attractive option. The dense and durable latex coating reliably protects against impacts, scratches and natural factors, and easily stretches with various deformations of the base.

Water-based paint is not used for OSB. For wood, water-dispersion paints described above are used.

How to paint an OSB board outside: painting technology

How to properly carry out exterior painting work on OSB facades:

1. Preparation: cleaning from dust, dirt, oils and other contaminants. If washed, it must be dried.
2. Priming the surface with primers corresponding to the type of paint. Filling with special products to prepare OSB for varnishing.
3. Sanding the surface with wood sandpaper of the appropriate grain size.
4. Dust removal of the surface after grinding.
5. Painting with the first layer of paint and drying until completely dry.
6. Sanding the first layer to remove dust.
7. Painting with a second coat of paint.

It is recommended to apply the coloring composition 2 times, although 3-4 stainings are often necessary. This is connected not only with the protection of OSB from external factors, but also with aesthetics. Large chips of material shine through a thin layer of paint, negatively affecting the appearance of the facade. It is important that each subsequent layer is applied only after the previous one has completely dried.

Different methods of decorative OSB coating - video

You can refine an OSB board or give it an antique effect using wood paints and varnishes.

It is necessary to paint OSB with overlapping layers, regardless of what you paint with - a roller or a brush.

Primers may only be used for paints as specified by the manufacturer.

White spirit is used as a solvent for alkyd paints. Turpentine, refined gasoline, RS-2, solvent, and xylene are also allowed.

There are no solvents for acrylic paints: they are diluted with water. To give acrylic paints a matte or glossy surface, special compounds called solvents are added. To remove dried paint, proprietary remover solutions are used.

For oil paints, there are their own thinners, which include: turpentine, white spirit, pinene, linseed oil.

Latex paints are diluted with water. It also washes off residues from brushes and rollers.

Sand the surface with sandpaper with a grit of 180-240. The OSB board is already sanded and its surface is ready for painting. Using coarse sandpaper may cause scratches.

Painting OSB is associated with some difficulties, which, if not taken seriously, can lead to deformation of the material and uneven coating. From this guide you learned what paint is recommended for OSB boards and how to paint them if they are located outside the room

OSB boards are usually used for cladding frame or half-timbered houses. That is why the question of finishing the facade arises. You can choose siding or ceramic cladding, but these options are expensive and labor-intensive. Painting will be much cheaper. Various means can be used for this. on the street? This is discussed in the article.

Why do you need to paint slabs?

To understand whether OSB boards are painted, you should familiarize yourself with their composition and appearance. They are a light, warm material that is used in the construction of external structures, internal walls and partitions. The panels may differ in brand; for the outer part, dense products are used, the markings of which have the numbers 3 or 4. Since the material is created by pressing wood chips and glue, it is breathable, environmentally friendly, but it is sensitive to atmospheric influences.

And when creating slabs, the chips are oriented longitudinally in the outer parts, and across the fibers in the middle. Because of this, the strength and thermal insulation properties of OSB boards are created. Is it necessary to paint OSB boards outdoors? The surface of the material is pleasant and warm to the touch, but does not have an entirely attractive appearance. That's why it needs to be painted.

Another reason for covering with a special product is to protect the material, and therefore the house, from destruction, moisture, mold, and fungi. Although the products are moisture resistant, the connection areas are vulnerable. Therefore, such facades must be painted. Only before this, it is necessary to clean off dust, as well as putty and primer. It is important that there is a delay between procedures. After puttying, you need to allow at least 12 hours to dry. The same period is provided for complete drying of the primer.

Paints

Nowadays many types of paints and varnishes are sold. But not every one of them is suitable for this OSB board on the street; it must be determined after studying the paint properties and possibilities. When purchasing, keep in mind that the panels contain 90% wood. Therefore, you need to pay attention to the scope of application of the paint and varnish.

Alkyd

How to paint an OSB board outdoors to get a high-quality result? Alkyd paint is great for these purposes. It is perfectly absorbed into wood and dries quickly due to its water component. But this fact is associated with a lack of funds.

The paint can be stored at positive temperatures, but when hardened it can withstand frost up to 30 degrees. The disadvantages include a low level of resistance to fire and alkalis. Alkyd paint is in demand due to:

1. Absence unpleasant odor, harmful formations.
2. Quick drying, long lasting color retention.
3. Excellent hiding power or the ability to get flat surface no drips.
4. Long service life.
5. Affordable price.

Acrylic

How to paint an OSB board outdoors to protect the material from various influences? One that has a polymer component, colors and water is suitable. The main property required for outdoor service is the ability to create a reliable film.

Acrids have good adhesion and OCB. These properties influence the demand for paints for facade finishing. Manufacturers produce mixtures not only of rich shades, but also with different physical characteristics. Surface from acrylic paint It can be matte and glossy, transparent and dull. Such mixtures:

1. Dries quickly and is very durable.
2. Used for processing porous, loose surfaces.
3. They are water- and vapor-tight.
4. Tolerates significant temperature changes.

Oily

How to paint an OSB board outdoors so that the material does not deteriorate from various influences? Oil paint is classic. Compared to modern mixtures, it is less in demand because it has some harmful properties:

1. High toxicity. During operation you need to use
2. Necessary long time for drying, since drying oil becomes the basis for obtaining paints.
3. It takes experience to apply the product evenly.
4. Due to its low durability, the surface needs to be renewed frequently.

The advantages include excellent absorption into the surface and ease of storage. Thick paint can be thinned with drying oil.

Latex

Which OSB boards are suitable for high-quality home protection? Latex paints suitable for wood are used. To create mixtures, ordinary water, acrylic resin, and latex polymer liquid substance are used. It is with it that ordinary acrylic enamel becomes a coloring composition.

The composition is based on polyvinyl, silicone, and other additives to improve performance. Facade paints are created to produce OSV with texture and density.

Water-based

If you are interested in what is the best way to paint an OSB board, then you should pay attention to water-based paint. It is used for finishing external walls. The product is suitable for renewing concrete and stone materials, which must first be treated with putty and primer. Aqueous emulsions are divided into:

1. Silicate. The base includes liquid potassium glass. Steam resistant paints.
2. Silicone. They contain silicone resin and fungicidal additives. After drying, they do not allow water to pass through and repel dust and dirt.

The best way to paint an OSB board on the outside is up to each owner to decide for himself. The above products are ideal for this job.

Coloring

These products are considered special, so their processing is carried out non-standardly. The working surface is flat, it can be smooth and somewhat rough. Before finishing, the surface should be treated with a special tool.

The edges may be porous, so they absorb more pigment, resulting in uneven color. The defect can be eliminated using putty for exterior use. It will remove joints and seams, after which primer treatment is required. The procedure will improve the adhesion of the dye to the OSB panels. It also protects from harmful influences.

If defects or unevenness appear during installation, then the entire façade needs to be puttied. For outdoor work, paint is applied at least 2 times. A better visual result and a more durable surface is provided by painting in 3-4 layers.

Color options

How to paint an OSB board outside? This work can be done in one of the following ways:

1. Spray gun or spray gun. This method is effective for an even, durable coating. Painting with such a device is quick, but increases paint consumption. In addition, the mechanisms are expensive. This method can only be used in calm weather using a respirator.
2. Paint brushes. This option is labor-intensive and time-consuming.
3. Rollers are used to speed up the process. With this tool you can quickly and efficiently update large areas. Used for different mixtures.

Details

The internal surfaces of OSB boards are sprayed. You can also take a roller to paint the ceiling with water-based emulsion. In hard-to-reach areas, apply the product with a brush. When applying the first layer, you need to control the uniformity. If you use water-based varnish, you need to monitor whether the slabs are damaged by moisture. Strokes should be done in one direction.

Before applying the next layer, you need to take breaks to dry the surface. To do this, you need to wait 6-8 hours, the time is determined by the type of paint. Drying should be natural at a stable temperature. Drafts should not be allowed.

The outside of the house is exposed to negative factors, so you need to choose high-quality paint for it. You need to pay special attention to the ends. Sharp edges of the slabs should be rounded with a radius of about 4 mm. Then the surface is cleaned of dust and a primer is applied.

When choosing paint for the final finish, you need to pay attention to the aesthetics of clear varnishes. Many don't tolerate it well sun rays. Water-based paints often deform slabs. Organosoluble, alkyd, oil products will be the most suitable. The principle of operation is the same as indoors. But at least 3 layers are applied to the facade.

Nuances

First you should touch the joints of the OSB boards. The treatment of these areas will be positive, but not for long, since during the installation of the house the slabs “play” and the putty cracks and falls out of the seams. This will negatively affect the appearance of the facade. There is another option for decorating narrow areas - using decorative overlays. They cover the seams after painting. They are needed as protection and a design element.

The painting activity is carried out from the top of the wall so that the paint does not flow onto the drying area. You also need to take the weather into account. It is preferable to do finishing at positive air temperatures.

It should be remembered that a painted facade is considered unpretentious during operation, but maintenance is still required. The materials are usually impact resistant. Walls must be washed regularly detergents, unless the manufacturer recommends something else. Do not use stiff bristled brushes as this will damage the finish.

Thus, OSB boards must be processed. Paint will be an affordable and effective option. The house will be reliably protected from various adverse factors.

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 OSB plate on the facade of the house, master 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 can be used with 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. the 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. The best option than painting 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. The variety of colors that is created thanks to tints 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. The main positive aspects of this option are 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 of the paint and varnish material to be the same on all sides, the edges must 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 is extended decorative finishing.

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. Chips of building material are visible through a thin layer of paint, negatively affecting the appearance of the façade.

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. Fill the 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 properly prepare the coating, sand sharp corners, prime the walls and apply a suitable paint and varnish material in several layers.

All that remains is to choose color scheme completely tailored to your personal preferences. Your home is your rules.

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Oriented strand boards, although they have an interesting pattern of pressed wood shavings, still cannot be left uncoated. This is especially true for OSB on the facade of a building, where the panels are exposed to all winds, rain and suffer from other surprises of changeable weather.

OSB needs to be protected from:

1. Moisture. Although waterproof OSB boards of class 3 or 4 are used for facade work, if the outside is not covered with a protective material, after some time they will be saturated with moisture from the soil and atmosphere and begin to swell.

2. Temperature fluctuations and sunlight can also damage OSB boards over time. In addition to darkening of the wood filler, this can result in the destruction of the resinous binder and peeling of the surface. True, such serious damage is more typical of low-quality panels. The most important thing is that oriented strand sheets belong to highly flammable materials (G4 group) and need protection from fire outside and inside.

OSB sheathing

There is a wide choice here: clinker tiles, hanging bricks, lining, siding - the list could go on and on. But why do developers use OSB on the facade? To reduce the cost of construction. It is with this attitude that you need to approach the selection of finishes.

1. Vinyl or acrylic siding is an economical material that is suitable for any facade. You can choose panels that look like a block house or brickwork.

The advantage is that if the facade of the house is sheathed with OSB, it is not necessary to install the sheathing on a flat plane. But what you can’t do without is a windproof, waterproof membrane, otherwise the siding that “sweats” from the inside will cause the surface of the slabs to swell.

Polymer cladding products are available in thicknesses from 0.8 to 1.2 mm, but the larger this figure, the longer they will last. Both types have good strength characteristics, are resistant to chemicals and do not support the spread of fire. Siding easily tolerates heating up to +85-88 °C and, subject to production technology, does not fade in the sun. Acrylic panels behave slightly better than PVC, but they have no serious differences. Price - from 240 to 1210 rubles/m2.

2. Decorative stone– such cladding will allow you to turn an OSB building into a solid brick or stone house, at least in appearance.

The process of finishing a facade from OSB is quite complex and expensive, but the durability and ease of repair will pay for these costs in the future. To prepare the slabs, you will need frost-resistant silicone-based sealants and antiseptic primers. You will have to fix polystyrene foam on top of the panels, putty it, and then cover it with reinforcing fiberglass and glue decorative items.

Artificial stone is made from Portland cement, which provides it with a high grade of strength (from 150 and above). In addition, such cladding can withstand more than 100 freezing cycles and has a water absorption rate of 4-9%, which can be improved with a water-repellent coating. Price - from 750 to 1450 rubles/m2.

Slab finishing

1. Plaster.

At making the right choice the plaster composition will extend the life of the particle board for many years and help make its external surface more fire resistant. The consumption of façade plaster on a flat OSB surface will be minimal, but associated costs will completely “eat up” the money saved.

The panels will need to be insulated from moisture contained in the mixture (ideally covered with expanded polystyrene) and reinforced with a special mesh. Finishing it would be best to do a textured one decorative plaster on acrylic base. It is elastic so as not to crack at the joints of the plates. Silicone is more expensive, but it has greater frost resistance, which is quite important in our latitudes, and the highest strength indicators. The cost of acrylic plaster per 1 m2 is 137-320 rubles, silicone plaster is 425-1010.

2. Varnishes and paints for OSB facades.

Paint and varnish materials are the cheapest type of facade finishing for OSB. Water-based or oil-based wood paints marked “for exterior use” are suitable. It is undesirable to use water-soluble coatings for OSB, as they will lead to uneven swelling of the surface layer.

But the technology for painting OSB will need to be strictly followed:

• Fill the interpanel seams with acrylic sealant.
• Thoroughly clean and prime the surface of the slabs.
• When applying primer and paint special attention pay attention to the ends, since they are the most vulnerable point of the sheet material.
• OSB edges must be painted until all sharp corners are visible.

Oil paint is ideal for particle boards on the facade, but here you have to take into account that it needs to be updated every 2-3 years - it will lose its original rich color so quickly. Consumption when covering the base with a primer does not exceed 200 g/m2. At a cost of 80 to 540 rubles/kg, finishing the facade will in any case be inexpensive.

Acrylic paint is highly resistant to abrasion - up to 5000 cycles for Ceresit - while it is elastic and does not crack. Consumption is 3-4 m2/l, but most of these products can be diluted with water (up to 10% of the total volume). The price varies from 57 to 285 rubles/l.

Acrylic varnishes, while waterproof, have such a valuable property as the ability to “breathe”. Before coating the OSB board with varnish, it should be sanded, if this was not done in production, and degreased. The surface of the panel is primed, then varnish is applied. Transparent will highlight the chip pattern and give the facade a noble shine, but you can also use tinted varnish in cases where the pattern is not so important.

If the OSB plane seems slippery, it means that waxes or paraffin were used to make it. Before finishing, it is coated with primer paint with the addition of fine quartz dust (sand) - it will provide better adhesion to the next finishing layer. The varnish dries quite quickly - in just a day, forming an abrasion-resistant sun protection and frost-resistant film. Consumption for single-layer application is 8-10 m 2 / l, price - 149-550 rubles / l.

OSB board is a durable and reliable material for cladding facades, but even the highest quality brands of it are not weather-resistant enough. Properly performed protective coating. The selection of products is large enough to easily find the optimal combination of beauty and final cost.