Types of OSB primers for wallpaper and the rating of the best brands, how to apply
Wallpaper is considered a very popular finishing material that is glued to various types of surfaces. For the repair to be durable, it is important to properly prepare the surface. The process of applying a primer for OSB panels under the wallpaper not only improves the degree of adhesion of the coatings, but also protects the sawdust base of the panel from moisture penetration. At the same time, it is important to choose the right composition and strictly follow the recommendations for its application.
The importance of pre-priming OSB panels
OSB panels are used quite often. This material can be used as the basis for wallpaper. However, it must first be properly prepared.
Primer properties and functions
The primer helps to significantly improve the quality characteristics of the coating.With its help, it is possible to form a waterproof film on the surface, which prevents the panel from swelling when in contact with moisture, glue, paint.
In addition, the primer makes it possible to smooth the surface of the slab so that it is not visible on the surface. During the initial priming, the resins and impregnation do not protrude from the base material. In addition, the procedure increases the degree of adhesion to the wallpaper.
To achieve the desired effect, it is recommended to use special compositions for OSB panels. It is also acceptable to use an acrylic or latex primer that contains antiseptic agents. As an affordable option, you can recommend a mixture of PVA glue with water in a ratio of 1:3. It is recommended to apply the ready-made primer in 2 layers and the PVA mixture in 3 layers.
Advantages and disadvantages of applying a primer coat
The use of special primers has the following advantages:
- reduce the cost of glue and dyes for subsequent work;
- high-quality whitening;
- the possibility of using the mixture for interior and exterior works;
- quick drying, regardless of the device of the room;
- protection against the negative influence of external factors;
- safety.
The disadvantages of primer mixes include the fact that not all types of formulations are completely safe until they dry. In addition, the drying time may differ depending on the composition of the product. This process is influenced by room temperature and humidity.
Suitable soil types and selection recommendations
In order for the primer to give the desired result, it is important to choose the right variety.
However, there are several options, each with advantages and disadvantages.
Acrylic
This type of primer not only strengthens the base, but also helps brighten the product. Thanks to this, it is possible to create a suitable base for the subsequent use of wallpaper and any coloring.Acrylic primers are characterized by the following properties:
- Fast drying. After 2-3 hours you can continue to work. The specific duration of the process depends on the temperature and humidity parameters. It is important to take into account that at negative temperatures water freezes immediately. Therefore, in icy conditions, it is forbidden to use this type of soil.
- The possibility of using different types of formulations. There are mixtures for surface treatment exclusively indoors or outdoors. There are also formulations with antiseptic components. Separately, it is worth noting deep penetrating substances, which strengthen the whole.
- Ease of use. It is recommended to use ordinary water for breeding. Therefore, the materials do not cause difficulties in application. In addition, they can be easily washed when needed.
- Security. These materials have almost no harmful odors. Therefore, they do not harm health. 1 hour after the treatment it is allowed to be nearby and not be afraid of the influence of negative factors.
alkyd
The only downside of alkyd flooring is the health hazard of certain ingredients. In order for the work to be successful, it is necessary to provide good lighting in the room. The advantages of alkyd compositions are:
- Chemical resistant. Even when active elements touch the surface, nothing happens.
- Antiseptic characteristics.When using this type of floor, you should not be afraid of the appearance of fungus or mold, since moisture does not penetrate inside.
- Increase the strength of the original surface. The polymers in the primer help achieve high strength. An increase in damage resistance is also observed. The material is suitable for indoor and outdoor use.
- Excellent base for alkyd paints. This type of primer is allowed for those who are going to use alkyd paints and varnishes. At the same time, the consumption of these substances is 1.5-2 times lower.
Adhesive
Such ground is called concrete contact. It is better to combine it with subsequent filling, wallpapering or plastering. The composition includes a quartz filler, which makes the surface rougher.
It is recommended to lay the putty with decorative plaster on the walls with a solid layer. The formulations are characterized by a high degree of fixation and do not flow. The primer provides excellent adhesion between these substances. The material allows the creation of irregularities in various formats, which facilitates the preparation for further processing.
It is recommended to apply the material with brushes and rollers with long hairs. In order for the materials to be applied easily and evenly, the mixture must be thoroughly mixed. Such a composition is perfect when using liquid wallpaper or applying plaster on boards with paint and varnish. The composition also goes well with detoxifying soil for OSB boards.
Ranking of the best brands of OSB primer
Popular tools that can be used for OSB panels are:
- "Master Inter" is a universal substance. It can be used not only on wood, but also on concrete surfaces. The composition can be used for paint and wallpaper. It makes the surface attractive and is used as a bond coat for further finishing.
- Kreisel 301 - this product has a universal composition. It can be used for various surfaces, including OSB panels. It is a deep penetrating material. Thanks to this, the substance forms an even layer and adapts well to the surface.
- "Moment GRUNT" is a universal priming compound that spreads easily over OSB slabs. After curing, it does not form tar spots, which is typical for wooden surfaces.
- GF-21 is a special primer designed for wood surfaces. The substance performs the usual functions of a floor and provides additional fire protection for OSB boards.
Rules for using primers
In order for the composition to give the desired effect, it is important to apply it correctly. In this case, it is necessary to follow certain rules.
Calculation of consumables
When applying the primer to a well-prepared area of 7-14 square meters, 1 kilogram of the mixture is required. This parameter may differ depending on the composition of the substance and the absorption capacity of the OSB surface.
Tools required
For priming the walls, it is recommended to take the following items:
- primer;
- container for mixing;
- fur roller with a long handle;
- brush for the treatment of hard-to-reach areas.
Surface preparation
Before applying the primer mixture, the surface must be properly prepared. The process differs depending on the type of material you plan to use later.
Usually, experts advise to level the surface and get rid of the upper protective layer of the tile, which makes it difficult to apply the primer. You can use a machine or sandpaper to sand the surface.
Primer application and drying time
It is necessary to prime the surfaces as follows:
- Pour the mixture into a convenient container and mix well.
- Using a roller and brush, evenly distribute the composition over the surface.
- When working on non-moisture resistant slabs, the number of layers is increased to 3.
- Thoroughly dry each layer. The duration depends on the composition of the mixture.
Through the use of OSB flooring, the slabs receive additional protection against swelling. In addition, the composition improves adhesion parameters. If you plan to glue thin wallpaper, there is a risk of staining the components that are used to increase the moisture resistance of the panels.
Nuances when performing external and internal works
Doing work outdoors has some differences:
- It is permissible to prime surfaces in the fresh air only in dry, calm weather. In this case, the cladding should be started immediately after the floor has dried. At this stage it has the highest adhesion characteristics.
- At an air temperature of +5 degrees or less, the use of a primer is strictly prohibited. Also, do not apply the composition to overheated surfaces. The optimal temperature regime is + 5-25 degrees.
- It is imperative to clean and prime the ends and back surface of all OSB panels.
- It is recommended to use not an acrylic mixture, but an alkyd mixture, which has toxic characteristics, as a primer mixture.Therefore, it is so important to use personal protective equipment - gloves, glasses, respirator.
- Since the external working volume is usually much larger than the internal one, it is possible to achieve an economical application of primer with a spray gun.
- Excess primer should be periodically removed with plastic scrapers.
- The drying time of the alkyd primer is at least 12 hours. Therefore, it is recommended to carry out the procedure in the evening in order to continue working in the morning.
- Acrylic compound or alkyd parquet mass is used as a sealant for joints, if it is planned to varnish the sheets.
- The primer should be applied in 2 coats. In addition, each of them must be dried.
- It is recommended to use alkyd substances or contact with concrete as a second coat.
Handling Precautions
To prevent the mixture from harming health and being evenly distributed over the surface, it is recommended to observe safety measures:
- Use individual protective gear;
- do not use the composition at high or low temperatures;
- monitor the expiry date of the product.
What mistakes beginners make
Sometimes novice crafters make the following mistakes when using primers:
- Wallpaper glue or water-based paints are used as a primer.
- The primer is poorly dried.
- Apply a primer in 1 coat.
- The composition of the mixture is poorly chosen.
- They buy products from unknown brands.
Advice from the masters
When working with a primer for OSB, it is important to adhere to the recommendations of experienced craftsmen. To do this, you must do the following:
- Clean the surface.Before using the mixture, it is worth removing dust and dirt from the boards. It is advisable to process the entire surface of the OSB with a damp cloth.
- Close the joints of the OSB. To do this, it is permissible to use acrylic sealant or sealants. It is also permissible to use polyurethane foam for this. After the substance has dried, its excess should be cut off or cleaned with sandpaper.
- Prepare the mixture. Finished primer should be mixed well before application. The dry mix must be diluted with water. This is done according to the instructions.
- Apply primer. From the very beginning, it is recommended to treat all joints with the composition. Then you need to apply the primer in 2 layers. Several hours should pass before applying the coats.
The use of special primers for OSB panels under the wallpaper allows to achieve excellent results. Such compositions improve the degree of adhesion and protect the base from the influence of negative factors.