Ideally stick the wallpaper with your own hands is quite real. But for this you should properly prepare the walls. Subject to a number of rules and nuances, you can get a qualitatively primed surface for any material. So what do you need for this?
Cooking surface
Before you begin, you must clean the surface. We clean the old coatings, putty, and then the primer. Only after that we can glue the wallpaper. All these actions are simple and quite easy to cope on their own, without resorting to the services of workers and repair firms.
We process the walls
A good primer for wall plastering is the key to success in your work. But the universal is not worth buying. And if you decide to glue the wallpaper, then you need a primer for the wallpaper. What is this material? This is a kind of suspension, mixing which, you can get a homogeneous mass of milky tint. It is necessary to apply such a mixture to the walls to create a special film that promotes good adhesion to many building materials. This is due to the composition of the soil, as organic resins and various adhesives are included. And the film is formed due to acrylic, silicone (depending on the composition of the soil), as well as using some polymers. In the primer there are various chemical additives, thanks to which it is very plastic.
What should be on the package?
The following information should be here:
- How to cook the mixture, the proportions of the solution.
- Material consumption per 1 m² on average.
- How to apply the composition to the surface.
- How much does the primer dry on the walls.
- The expiration date guaranteed by the manufacturer, as well as the production date.
The primer is an important stage in the repair. It not only increases the adhesion of materials, but also is a good protection against fungus, mold.
Types of primer
Today there is a huge selection of primers. This solution contains oils, resins, pigments, glue, bitumen and substances that form a special film. The compositions are of several types.
- Dry primer. If you yourself are gluing wallpaper, then, having bought such a mixture, you must dilute the composition with water. The main thing is to familiarize yourself with the instructions on how to do this and what the consumption is per 1 m². You also need to consider what surface you have and the fact that the primer is usually applied in several layers.
- Liquid primer. It costs a little more than dry. The liquid primer is already ready for use and it is not required to dilute it with water. Its composition includes universal fillers.
- Acrylic primer universal. The composition includes acrylic polymers. This material can be used for different surfaces. Acrylic is suitable for surfaces such as plasterboard, wood, concrete, plastered, painted, asbestos cement. To apply, you need a brush or roller.
If the primer thickens, add water, but very little. How long does the primer dry on the walls? The material dries very quickly (within two to three hours). This mixture has no smell, which is very important, especially for small rooms.
If you are going to glue the wallpaper on a concrete surface, then the choice should fall on the solution - the so-called alkyd soil, since acrylic can not protect against corrosion. This mixture is used as a protective coating. Therefore, for a concrete surface, if there are any metal elements on it, the ideal choice is an alkyd primer. The material can be applied not only to concrete and metal coatings, but also to wooden, glass and on fiberboard surfaces. It dries longer than acrylic - about 15 hours. Under the wallpaper, the primer for the walls is taken with a chromatic base.
Preparing the foundation
Before you paste the wallpaper, find out a number of important issues. Which soil to choose? How to determine the type and when you can start gluing the material?
- If there is a trace of plaster on the wall or traces of white plaque, then for such a surface you need material on a chalk base with the ability to penetrate deeply.
- You need to know whether the old dense layer on the primed surface or not. This can be checked with water. Then observe how quickly the liquid is absorbed. If slowly, then this surface is primed several times.
- If there is fungus on the surface, then the soil should be antifungal. It is advisable to apply it under the plaster, and on top. This will help prevent the spread of mold.
- If the surface is sufficiently porous or loose, then you need to acquire a soil with high adhesion. In addition, it is necessary to treat the surface with compounds that have the ability to penetrate deeply.
How to calculate the purchased material?
For this:
- Calculate the area of the wallpapered surface.
- Primers should be taken 1.5 times more than the result of calculating the area of wallpaper. This amount of primer is only suitable for applying one coat.
- Before buying, read the instructions. Find out what flow rate is needed and how quickly this mixture dries.
- Buy for a primer a bucket, roller, brush, mask, construction glasses, rubber gloves.
It should be remembered that each layer should dry well and only after that it is possible to apply the next. The soil layer will be smooth, while it sticks a little to your hands. Start applying the material from top to bottom. We pre-cover the floors with something so that the solution does not enter, since then it will be difficult to remove it from the surface.
Why do I need a primer
It forms a good adhesion of different materials. Displaces air, which eliminates the possibility of bubbles appearing under the wallpaper. Creates an excellent base for adhesive. It reduces the consumption of glue, which significantly saves money. Prevents the appearance of fungus, mold, any bacteria. Creates high adhesion in difficult places.
This can be very helpful in corners and joints. In addition, the primer smooths out some flaws in the glued surface. Due to this remarkable property, the soil allows you to glue the wallpaper with the greatest comfort. This product has another good property. The primed surface continues to “breathe”, which preserves the microclimate of your home.
Primer walls before painting
Almost everyone is faced with repair, which means that they are faced with the choice of building materials. What to choose - wallpaper or wall paint, or maybe both? Having chosen all the same paint, you should think about preparing the wall for its application. Qualitatively painted surfaces always look beautiful and stylish, and also give the room a unique cosiness. The wall looks aesthetically pleasing, has no joints. The main thing is to carry out the preparatory work correctly:
- Wash the walls with hot soapy water.
- Putty all the bumps.
- Check problem areas. How is primed walls in front of wallpaper? If there is a lagging plaster, then you should remove it and putty.
- Use only high-quality gypsum putty.
- Allow the surface to dry well.
- Sand the surface with medium grain sandpaper.
- Brush off accumulated dust.
- Prime the walls, carefully coating the joints of the walls and ceiling.
Neglecting such an important step as the primer of the walls before wallpapering is not worth it. Since this can lead to many difficulties and problems in the future. What are the benefits of priming a surface? Reviews highlight the following benefits:
- soil improves the adhesion of walls and coated materials;
- saves glue or paint;
- prevents the appearance of fungus or mold;
- facilitates the application of paint to the surface;
- easy to apply;
- dries quickly.
Now you can purchase different types of materials at an affordable price. A wide range is another advantage.
Primed or not?
To the question: "Do I need to apply soil before the plaster?" - the answer is one: yes. Above, the article describes all the advantages of soil. Under the plaster, a primer must be applied to increase adhesion, as well as to prevent the appearance of fungus or mold. In addition, the soil prevents the appearance of cracks and detachments. This material can save you from rework later on. In the case of plaster, high-quality primer will also save materials, which is always nice for your pocket. There is also an important factor: this mixture extends the life of finishing building materials. The main thing is to determine what kind of soil you need. Consider the type of surface to be applied. If you can not make a choice, then in each store there is a sales assistant who wants to help you.
Soil price
Like any product, the price here is different. On sale there are soils from different manufacturers. Each of them has its own quality and volume. It is important to understand what result you expect in the end and how much you can afford. There are budget options for walls made of concrete or brick. They do not greatly absorb the soil, so the expense on such a surface is small. The price of the primer for walls is 250 rubles per ten liters. If you take the material of deep penetration, then it costs from 450 rubles per ten liters. Such a price may be due to the fact that often the composition includes disinfecting, antiseptic agents.
Of course, there is also more expensive soil from well-known manufacturers and the highest quality. Save on quality is not recommended. It is also necessary to take into account that additional payments will have to be made by the workers who will perform all the soil work. It can seriously hit the pocket. But applying the soil mixture is so simple that you can easily do without outside help. After studying the instructions on how to properly dilute the mixture, and putting on work clothes, get ready to prepare the surface using the information above. And then, with a gentle movement of the hand, apply in several layers of soil. Feel the pleasure of being a jack of all trades and everything is up to you!
So, we found out how the primer of the walls is made before wallpapering.