How to paint the osb-slabs outside the house?

In recent years, OSB materials are increasingly going to the outdoor decoration of private houses. Therefore, the question of their coloring is especially relevant today. In our review, we will consider all the subtleties of the choice of facade dyes for buildings trimmed by OSB panels.

Overview of Krasok

To competently pick up a dye for OSB-sheets, you should understand the features of this material. OSB is a robust wood-fibrous chips, mixed with resins and compressable under high pressure and heating.

Despite the presence of synthetic components, at least 80% each panel consists of wood. Therefore, any facade arches designed to work on the tree will be suitable for their color.


The main components of such dyes are alkyd resins. They are produced by digesting the mixture based on vegetable oils and weakly aggressive acids. After applying to OSB-sheets, this enamel forms a thin and even film, which in the course of operation protects the surface from adverse external influences, including from moisture. Alkyd paints have a low price, while the material is distinguished by resistance to UV radiation and reduced temperatures. Enamel dry in just 8-12 hours, it is absolutely safe, although the drying of the dye is often accompanied by the appearance of an unpleasant odor.

The use of alkyd compositions requires solid preparation of the treated surface. If this stage is neglected, paint will peel and bubble.

Important: After staining, the surface of the panels remains capable of burning.


In recent years, oil dyes are used infrequently, since a large selection of more practical compositions appeared in the modern construction segment. Oil paints are highly toxic, any work with them should be carried out using individual protective equipment – masks or respirator. At the same time they are not suiced, because they are made from expensive raw materials. For the final drying, the paint must be at least 20 hours; during this time, removals are very often. Oil compositions are characterized by low resistance to adverse atmospheric effects, because when using a dye layer on the facade is quite often cracking.


Acrylic LKMs are manufactured on the basis of water and acrylate, acting as binding components. After applying enamels on the surface of the OSB-sheet, water evaporates, and the remaining particles form a dense polymer layer.

Such a coating option provides an oriented chopper surface maximum degree of stability to the action of cold and ultraviolet. And due to the water base, the coating treated with acrylic enamels acquires resistance to burning.


Latex paints are one of the varieties of water-based compositions, the binding component in them is rubber. The price of this material is much more exceeding all the others, nevertheless, all costs are fully paid off by the increased performance characteristics of the product and the exceptional quality of the coating. Latex paint is distinguished by elasticity, it is not deformed even when the slab is destroyed. This dye is not afraid of mechanical effects. Wear-resistant coating by 100% isolates OSB sheets from moisture and in this way ensures the necessary degree of sealing. Painted surface acquires resistance to atmospheric factors.

It is important that latex dyes are distinguished by increased environmental friendliness. In the course of use, they do not allocate harmful volatile compounds and do not give chemical smell when applied. The bonus will be the simplicity of cleaning the coating – you can get rid of pollution with the most simple detergents.


Water-emulsion paint is rarely used to color OSB sheets. This is due to the fact that under the influence of external factors, the material swells. If the OSB list is painted only on the one hand, it leads to his bending. Because the processing of such plates with water-emulsion means can be performed solely when the finishing finish view will not have a special role.

Otherwise, preference is worth paying the LCM based on solvents.

Coloring is a relatively budget way to help give the OSB panels. Neat appearance and external appeal. Most developers in the soul of wood texture, which they seek to emphasize. In this case, the optimal decision will be the acquisition of transparent enamels with the UV filter – and the best reviews are honored CETOL FILTER products. This is an alkyd enamel used for outdoor wood facing. The coating is distinguished by transparency and light half-one. In the composition of the dye there are hydrogenizers, as well as UV stabilizers, their complex impact provides maximum protection of the tree from the adverse effects of atmospheric factors.

If necessary, keep the wood-chip texture of the slabs can be taken transparent lazuries – They emphasize the wood pattern, but the desired koler append. The widest choice of azurei offers BELINKA.

Assortment line “Toplasur” includes more than 60 tones.

Transparent lacquer for wood give the OSB surface glossy. It is best to take rackets on aquatic, organic or oil basis. The wood acrylic varnish protects the material structure, and the yacht gives it a decorative shade. The most practical choice will be the semi-milk composition “Tedol”. It is evenly distributed over OSB and fills all the irregularities of the coating.

To disguise wood structure and forming a smooth surface Preference It is better to give the products “LEEC” and SOPPKA.

Tips for choosing

When choosing a dye for cladding from OSB panels, it is important that the selected material complies with certain requirements.

  • Was suitable for outdoor work. Accordingly, the material should differ resistant to water (rain, snow), temperature fluctuations, ultraviolet radiation.

  • Wragged wood fibers from contamination by pathogenic microflora – fungi and mold. Alas, not all varieties of OSB have factory impregnation with antiseptics, so the paintwork should give all the necessary protection.

  • Prevented fire. The dye must be resistant to burnout and spreading fire, and also be sure to contain a complex of flame retardants.

  • Because it is about the facade of the building, it is important that the paint has exceptional decorative parameters. It is desirable that the user has the ability to toning the selected material in that color that is suitable for the implementation of the designer concept.

Thus, the optimal composition for toning the OSB-sheets will become paints that may not just create a beautiful layer on the surface, but also to impregnate fibers with fungicidal, water-repellent and fire-resistant components, that is, ensured a comprehensive effect on the stove.

Unfortunately, Most builders in the construction of buildings neglect these rules and apply cheap substitutes – traditional alkyd enamels, conventional water issues and standard oil paints. At the same time, they do not take into account the fact that OSB is a composite material. It is made with the addition of adhesive binders, usually natural or formaldehyde resins are in this capacity, as well as waxes.

That is why the use of dyes that have successfully manifested themselves when toning a regular board, do not always lead to the desired effect on the stove. Due to this Preference should be immediately given to the compositions made specifically for OSB sheets – This will allow you to significantly save your time, money and nerves.

Paint choose depending on the expected result. So, when using pigmented LKM, the wood texture of the OSB panel is fully painted, and a dense monotone coating is obtained. When applied colorless compounds, it is assumed to enhance the severity of the wood texture of the plate.

When applying enamel on the plate you can see that some chips when contacting moisture swell and slightly raise – it can happen, regardless of the variety of selected LKM.

If you spend a budget finish outside the building, then you can not pay special attention to these insignificant flaws. However, if the requirements for finishing works are high, then it is worth sticking to a certain sequence of steps when toning the slab:

  • applying soil;

  • fixation of fiberglass grid over the entire surface of the plates;

  • Hydrocerement and cold-resistant mixture;

  • Finish coloring.

If you are going to use elastic dyes, then the step of the shtlock can be skipped. Such paints are well idle and masked it, after applying the next layer of enamel coil acquires a glossy surface.

To achieve the most uniform application of the composition, the masts of the finishers advise to perform staining in a certain way.

The perimeter of the panel is better to paint in 2-3 layers, and then with a roller carefully redistribute the dye along the entire surface of the plate.

The rest of the panel paint as a thin layer as possible, the coating is applied in one direction.

Before painting the next layer, you must give the coating to grab and dry. It is advisable to carry out all the work in warm dry weather to eliminate sharp drops of temperature, drafts and the effect of atmospheric precipitation. An approximate time of drying one layer is 7-9 hours.

Only after that you can apply the following layer of LKM.

Dye applies with different techniques.

  • Pulverizer. This method is used to create a strong smooth coating. Such staining is performed rather quickly, but at the same time enamel consumption. In addition, the device itself is expensive. It is possible to resort to this method only to mildly dry weather with the mandatory wearing respirator.

  • Brushes. The most common option gives a strong high quality coating. However, it takes a lot of time, is very laborious.

  • Rollers. Such staining allows you to significantly speed up the process of applying the dye. With such a tool, update large areas of OSB panels can be quickly and efficiently.

If desired, you can use unconventional ways of staining walls. For example, it looks beautifully imitation of masonry from stone. Such technology requires a lot of time, because it assumes a multistage staining.

  • First you need to print or draw an image with the design that you plan to reproduce. Do not choose too intricate textures.

  • Next, determine how many shades you need, and problem the panels in the paint of the base shade – it should be the brightest tone. In this case, it is not necessary to grind the surface, and so that the dye spreads over rough coating as much as possible, it is desirable to use the paintopult.

  • After drying the paintwork, the surface is slightly protected. In this way, the relief and the depth of the invoice are emphasized.

  • Next, the conventional pencil of the stone masonry is transferred to the surface of the panel, and then underlined with a dark tone with a thin brush.

  • After that, it will only be covered with separate stones with collections of other shades to create a volume effect.

  • The result is fixed by varnish, it must be prey to dry well.

The second interesting way – toning with the effect of plastering. This is a simple technique that does not require a master of any artistic talent.

  • First you need to pass the plate to remove the wax coating.

  • Then the primer is performed, and wear a basic. It is selected, focusing exclusively on individual preferences.

  • After drying the soil, the surface is slightly polished. Do it need to use fine-grained emery.

  • After removal from the panel of the remaining dust, the dye is applied with the patina effect or pearl. You can immediately use both compositions, but in turn. After applying enamels, wait 10-15 minutes, and then go through the painted surface of the eat.

  • The result is fixed by varnish.

Using facade dyes for finishing an oriented chip surface, you should be aware of the individual subtleties of such work.

  • All sharp corners of sheets often cause cracks on the applied coating. Therefore, any work should be started with the mandatory grinding of these zones.

  • Plate’s edges are distinguished by high porosity. These areas require preliminary sealing.

  • To improve adhesion and reduce hydro absorbing characteristics, it is pre-performed priming panels.

  • The process of tinting the OSCE-slabs on the street requires multilayer application of the LKM, because each layer should be made as thin as possible.

  • If the surface of the sheet is rough, the consumption of enamel will be repeatedly increased.

If, after preparation, the surface still badly scores, therefore, it was stored incorrectly.

If the material lay out in the open air for more than a year, before processing it must be carefully cleaned from all pollution, dust, treat fungicides and poll.

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