Adding a distinctive texture and finish to your walls can be achieved by applying liquid wallpaper to OSB boards. To guarantee that the wallpaper adheres well and appears smooth, OSB boards must be properly prepared due to their rough and porous surface.
It’s critical to comprehend the steps involved in getting the OSB board ready before you begin. This entails priming the board, sealing the surface, and ensuring that it is smooth and clean. Ignoring any of these steps may result in problems such as uneven finishing or poor adhesion.
We’ll walk you through the steps in this guide to get your OSB board ready for a successful liquid wallpaper application. These easy steps will help you give your walls a gorgeous, long-lasting finish.
The secret to successfully applying liquid wallpaper to an OSB board is surface preparation. Making sure the board is clean, smooth, and primed is part of this process that helps the wallpaper stick well and produce an eye-catching, long-lasting finish.
- Features of OSB (OSB) boards
- Is it possible to apply liquid wallpaper to OSB boards
- Processes for preparing the surface of OSB boards for applying liquid wallpaper
- Priming
- Sealing joints and reinforcing corners
- Surface leveling
- How to apply liquid wallpaper to OSB
- Video on the topic
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Features of OSB (OSB) boards
A composite made of wood is called OSB (OSB) board. Its strength parameters are different from those of conventional MDF and chipboard, and its operational parameters greatly outperform them.
Chips measuring 75–150 mm in length and 15–25 mm in width are arranged in layers that are perpendicular to one another on an OSB board. The material gains more strength as a result.
The primary binder is a glue with a paraffin and wax base. The chips are treated with a small amount of formaldehyde resin and boric acid to make them moisture-resistant and keep them from rotting. Layer by layer, the raw materials are laid out, paying close attention to the direction of the wood fibers. The plate is compressed between 170°C and 200°C while under 5 N/mm2 of pressure.
The OSB board is categorized into four groups based on its performance attributes:
- OSB1 – has relatively low moisture resistance compared to other classes of OSB panels. Can only be used in rooms with normal humidity and in structures that are not subject to loads (self-supporting). It is not recommended to use for applying finishing materials that require "wet" processes;
- OSB2 – used to create building structures under minor loads in rooms with normal humidity;
- OSB3 – has an optimal combination of price and performance parameters. Can be used in both dry and wet rooms as a structural material for building elements under load. It is allowed to apply liquid finishing materials.
- OSB4 – has increased resistance to high humidity and strength. Recommended for use in critical load-bearing structures operated in conditions of systematic high humidity.
Is it possible to apply liquid wallpaper to OSB boards
Depending on the class, OSB boards have varying degrees of swelling—25% for OSB 1 and 12/15% for OSB 3 and 4, respectively. It is therefore preferable to select class 3 and 4 slabs when applying liquid wallpaper to an OSB wall or ceiling.
OSB boards have a high level of moisture resistance because their surface has a layer of paraffin for protection. Nevertheless, this layer will obstruct the glue-fixed decorative finishing. Therefore, the protective layer needs to be removed before applying liquid wallpaper.
Moisture and other substances cannot seep into the material when formaldehyde or acrylic resins are present. Moreover, the sheet’s low absorption coefficient is a result of high density. Each of these elements considerably lowers the adhesive composition’s adhesion.
Processes for preparing the surface of OSB boards for applying liquid wallpaper
The most crucial step in the process of adhering liquid wallpaper to OSB driftboard is prepping the work surface. There are other steps involved as well.
It is advised to use grinding machines and sandpaper with a maximum grain size of 180 to remove the paraffin protective layer.
Priming
Over time, adhesive mixtures may come into contact with resins in the board’s thickness. This can cause yellow spots to appear on the decorative finish’s surface. It is essential to add a barrier between the board and the adhesive layer in order to prevent this. One way to create such a layer is with an acrylic base and primer.
White is the most neutral color to choose for the base, so it is advised. Applying it with a foam roller or a pneumatic sprayer works better.
Sealing joints and reinforcing corners
High-elasticity putty is used to seal the joints and seams between the sheets. By doing this, decorative materials won’t break when the structure shrinks and deforms.
The room’s corners on the outside and inside are strengthened with unique fiberglass mesh profiles. This will strengthen the corner, add more rigidity to the lines, and keep it from chipping.
Surface leveling
It is advised to apply putty to the OSB wall’s surface to guarantee optimal adhesion and moisture protection. This will greatly strengthen the decorative wallpaper layer’s fixation.
On OSB boards, liquid wallpaper can be applied in a fairly thick layer to cover up major flaws in the base surface. As such, it is not necessary to sand the plastered surface again after it has been applied.
How to apply liquid wallpaper to OSB
A layer of putty is covered with liquid wallpaper in the following order:
- The contents of the package are completely poured into the container. Mixing is carried out manually with the gradual addition of warm water;
- The technological pause required for the swelling of the wallpaper can take 4-8 hours, depending on the manufacturer"s requirements;
- Before starting application, the finished mixture is mixed again. Application to the work surface is carried out according to the principle of plastering, using a spatula and starting work from the corner. Recommended thickness of the finishing layer is 1-4 mm;
- It may take 10-12 hours for the finish to dry. It is recommended to create a draft in the room, and in the cold period to provide heating using heat guns;
- If additional protection is required, the surface is covered with a layer of special varnish.
| Step | Description |
| 1. Clean the Surface | Remove dust, dirt, and any loose particles from the OSB board. |
| 2. Apply Primer | Use a high-quality primer to seal the OSB surface, ensuring better adhesion. |
| 3. Smooth the Surface | Fill any gaps or holes with putty, then sand the surface to make it smooth. |
| 4. Apply a Second Coat of Primer | Once the first coat is dry, apply a second layer of primer for extra protection. |
| 5. Let it Dry | Allow the primer to fully dry before applying liquid wallpaper. |
In order to apply liquid wallpaper to an OSB board successfully, the surface must be carefully prepared. For the best outcomes, make sure the board is smooth, clean, and properly sealed.
It is important to properly prime the OSB board in order to avoid moisture problems and guarantee that the wallpaper will stick to it. This step is essential for a finish that is both beautiful and long-lasting.
By following these guidelines, you can use liquid wallpaper to give your walls a polished appearance while also adding durability and style.
