Whitewashing is an environmentally friendly finishing material, however, it is used less and less today for repairs. Its disadvantage is the need for repairs every 3 years. Many people think about how to stick wallpaper on whitewashing. Some advise strengthening the finish layer with a primer, treating the surface with concrete contact or sticking a test piece.
If you still think about how to paste the wallpaper on a whitewash, then you should consider that there is no guarantee that such a coating will last long enough.
Wallpapering the walls
Sometimes owners of apartments and houses use a method of sticking wallpaper on whitewashing in the case when special requirements are not imposed on the quality of repair. In this case, you can refresh the room in just one day. But if you do not prepare the walls, then such work will be a waste of time.
When glue is applied to the paper wallpaper, it becomes soaked and wider. When drying, the canvas will shrink, acquiring its original size. The biggest load will be on the edge of the wallpaper, so they will go apart at the seams. On an unprepared surface, wallpaper must be glued with an overlap.
If you are thinking about how to glue wallpaper on whitewashing, you must first remove the old finishing layer around the perimeter of the room, then the corners are cleaned, a deep penetration primer is applied to the wall, and then the adhesive composition is prepared.
The master should cut the wallpaper, and in the course of work, process the corners with PVC glue, this also applies to the upper part of the wall. When gluing wallpaper on a non-woven basis, you must apply the composition to the wall. If you plan to stick paper wallpaper, then glue is necessary to process the back side, and then leave the canvas for a few minutes to swell. At the next stage, the wallpaper is glued, and in order to hide the seams, stripes must be laid starting from the window.
Why you can not glue wallpaper on whitewashing
Many novice home masters are wondering whether it is possible to stick wallpaper on whitewashing. Begin with the fact that particles of calcareous or chalky whitewash have a small fraction and are almost weightless. When whitewashing is applied to a wall or ceiling, it is held by surface tension. As soon as the moisture evaporates, the whitewash dries up and forms an even coating.
The layer can be compared with a layer of dust, it is enough to draw a hand over it, as chalk remains on the fingers. From this it follows that whitewashing will not withstand the additional load. Having glued the wallpaper, you will come across the fact that they will move away from the surface. If you want to glue the wallpaper, you shouldn’t apply whitewashing to the wall, because in this case the paper will leave along with the top layer.
Will the primer help
There is an opinion that when applying a primer, it penetrates the inner layers of whitewash. However, lime is rather poorly wetted and has water-repellent characteristics. After completing the priming work, it seems that the whitewash is strengthened, because it no longer gets your hands dirty. But the primer only forms a film on the surface, and the adhesion of materials remains the same.
How to avoid mistakes
If you want to glue the wallpaper after whitewashing, you should not trust the sellers who assure that the primer perfectly impregnates the top layer of lime. The seller’s task is to sell the goods; your task is to carry out high-quality repairs. You should not throw away extra money using impregnations that enter into a chemical reaction with the whitewash ingredients, as a result you get only yellow stains.
Whitewash Removal Recommendations
If you still decided to get rid of whitewash before pasting the wallpaper, then you should remember that the work will be accompanied by the formation of a large amount of dust and dirt. At the first stage, the furniture is covered with a film, the floor is covered with newspapers, and the upper finishing layer is moistened with warm water. For this, it is most convenient to use a wide brush with natural pile. Lime can be scraped off the surface with a spatula, then the walls or ceiling are treated with an acrylic primer. At the final stage, garbage should be collected and the floor thoroughly washed with water and vinegar added.
Specialist recommendations
If you are thinking about how to glue wallpaper on whitewashing, then first you need to decide whether there really is lime on the surface. Sometimes it is confused with chalk putty. If the latter is fairly well kept on the surface, then you should not get rid of it. However, if we are talking about whitewashing, then removing it from a rough wall can be quite difficult.
If special requirements were not presented to the repair technology, then the whitewashing could be applied to the plaster layer without putty. In this case, the lime will fill the recesses from which it will be difficult to remove. For work, the wall is moistened with water, the upper layer of whitewash is removed with a spatula, and then with the help of a sponge or brush, the remaining layer should be well soaked.
It is best to abandon the foam sponge, because it will soon become unusable. It is recommended that you work with a stiff brush that has a handle. It is impossible to completely get rid of such a decorative layer, so the wall should be primed to strengthen the remaining particles of lime.
Conclusion
Before you paste the wallpaper on a lime whitewash, it is still recommended to try to remove it. If the old decorative layer is thin enough, then use a rag to do this, so as not to scratch the wall. Once the whitewash has been removed, a two-coat primer should be applied to the base. After drying, you can proceed to further work.
If there is no desire to remove the old layer of lime, then the wallpaper can be glued and butt, while at the places of docking under the wallpaper a special strip is glued, which will provide better adhesion of the edges. When gluing corners, on top of the canvas, it is necessary to make an incision, which will be located along the line. This will not only align the wallpaper, but also bring out the corner.