Wall primer for wallpaper: choosing the best compositions

Primer for walls under wallpaper - which one to choose and how to make it yourself

A primer for walls under wallpaper is also found in retail, and it is also quite often done even by hand.

But most people are wondering whether it is necessary to prime the wall surfaces before wallpapering and, if so, by what means to finish the walls before gluing the wallpaper.

We invite you to see photos and videos on this topic, as well as to do all the work correctly.

What is the purpose of priming the walls?

Before you decide whether you need priming of wall surfaces before wallpapering, you should understand why it is required. Further, after you figure it out, you can decide whether you need to prime the surface of the walls before gluing the wallpaper, specifically in your case.
If you are not completely sure that you are able to correctly assess what types of work are needed in your case, we suggest that you invite a master for a consultation. He will help draw up a work plan, inspect them and do everything in a short time, quickly and efficiently. Whether it is necessary to prime the wall surfaces before wallpapering, should be decided by the state of the room. If we are talking about an ordinary utility room and there is almost no one there, then it is quite possible to do without priming the walls before pasting the wallpaper. But these are not all the rules, because the wall is part of the frame of the house and the fungal colonies are ways to expand throughout the structure as a whole.

So :

Primed wall surfaces will become dry and even, and the primer will increase the adhesion of the adhesive to the surface. A good primer will guarantee that the bottom layer will remain intact and will not crack, and moreover, it will not allow moisture to be absorbed into the walls.
The primer, which is applied to the surface of the walls, will give it the opportunity to "breathe", and thus an excellent microclimate will be created, and still will not allow fungal colonies to spread. You should not think that the wallpaper will adhere perfectly to the surface of the walls without a primer, as this is a huge delusion.
Wall Primer helps to strengthen the outside of the walls and penetrates deep inside.
It will simply fill the pores and cracks of the surface, and it also enhances the bonding of surfaces and increases the life of the wallpaper. This is one of the main parameters, which requires priming under the wallpaper.

Let's take a closer look at the preparation stage.

Details

Steps and steps

Preparatory step

Next, we propose to figure out how to properly prime the surface of the walls before wallpapering. Like any other job, this will require the right preparation.

Durability will largely depend on it, therefore, we propose to figure out in order how to prime the walls for wallpaper:

Priming of the wall surface is carried out after all stages of work (primary), including after removal old layer of plaster and nails.
The composition of the primer must be applied after the walls have been plastered and dry.
The priming process for walls under wallpaper begins with the fact that the surface should be moistened with a special impregnation. This is required in order to fully wash away the dirt and dust that remains after rough surface treatment, because wallpaper cannot be glued to dirty walls. Everyone knows that earlier newspapers were first glued to the walls and only after a sheet of wallpaper, but at the moment the primer solution was able to fully replace the printed matter.
After the primer has dried, the wall will not get dirty and will be stronger than before. Thus, the wallpaper canvases will lie flat on the surface of the walls and will hold for a long time, firmly.
If you have a wall covered with old wallpaper, remove it and then rinse off the adhesive. This is done with a metal spatula or a scraper and water.

Please note that if wallpaper sheets do not absorb moisture well and lag very poorly from the wall surface, then they need to make cuts on them for perfect moisture penetration.

These days in hardware stores you can find a special liquid that helps to quickly remove wallpaper. It should be added to a bucket of water, moisten the wall, and leave in this form for 1/2 hour.

After this time, wet the wall surface again and you can easily remove the old wallpaper from the walls.

A good primer for walls under wallpaper plays an important role, because the quality of work will depend on it. When the wallpaper is removed, wash the walls with warm water as best as possible and clean the wall surfaces with a wide spatula from whitewash and adhesive.

Very often there is high humidity in rooms, for example, it concerns the bathroom and kitchen, and mold begins to collect in the corners. It must be removed so that it does not appear on the newly repaired wall.

Places where mold has appeared should be treated with bleach. Typically, you need 0.2 kg per liter of water.
It should be borne in mind that when pasting places where there was previously mold, the adhesive should be bought with a fungicide content.

After removing the old layer of wallpaper, mildew and adhesive, the wall surface should be carefully examined. It is important to fill up any unevenness and cracks found. If your apartment is not warm enough, you can warm it up with a thin layer of foam. This method not only makes it possible to make the apartment warmer, but also hides wall defects.
before priming the ceiling, you should get rid of the hook, cracks and holes, putty everything well. If the ceiling is made of plasterboard, gypsum or any other porous type surface, then it must be primed in any case and do not hope for chance.

Now let's look at the works themselves.

Working with the priming compound

Next, we will decide what exactly the walls should be primed with before the wallpaper appears on them. There are many materials in the retail trade, and some people do it with PVA glue.

The priming of the walls is also carried out before pasting the wallpaper with exactly the same glue that is used when gluing the material itself, and for this it should only be slightly diluted with water. For this reason, how exactly to prime the walls is up to you. Just before that, you should carefully read the instructions for using the primer, and it simply can be for different surfaces, although all the tools are applied by hand. Recommendations:

It is best to dilute the primer composition in a bucket, and the primer may be different, therefore, before how to breed it, you should read the instructions on the package.
Mix everything thoroughly so that there are no lumps.
To stir the solution, you can use a drill with a mixer attachment, and in this case, you will get an excellent composition. It is very difficult to get this quality of the composition manually.
The primer should be applied with a wide brush. It will be very similar to whitewashing the ceiling. Spreading an even layer of composition on the surface of the walls, irregularities and untreated areas are not allowed.
After you prime the walls for the first time, allow time to dry. Drying times are usually written on the packaging. Even if by your standards the surface of the walls after the first priming looks perfect, you still need to apply another layer of the composition.
Also, a lot will depend on the quality of the walls to which the primer will be applied, which is capable of soaking in different ways on the same wall surface. When re-primed, the quality will be excellent and there will be no difference.
On a perfectly flat wall, you can work with a paint roller, and this is much more convenient and also smoother than working with a brush.

What types of quilting products are there?

Types of primer

Before starting processing, let's decide which one to choose a primer for walls for wallpaper, and for this we will consider the most popular materials for use.

Acrylic primer

This type of primer can be used with putty, concrete and plaster. Acrylic primer mix always gets the job done.

Please note that if the wall surface is poorly processed, then a primer with deep penetration is ideal, but a simple (universal) tool does a pretty good job too.

A primer for wallpaper should be of excellent quality, and in order to avoid trouble, you should buy a primer from popular companies. Do not look at the inscription "under the wallpaper", because this is just a marketing ploy

In stores you can often see products that are signed as "wallpaper primer", but this is just PVA glue in a diluted form. But here you should know that such a composition is several times more expensive than PVA glue itself. It is for this reason that before you buy an acrylic primer, be careful and see that the packaging indicates that the primer is made from a mixture of acrylic polymers, not PVA glue.

Acrylic primer should be between 0.
1 and 0.2 liters per square meter. This can depend on how porous the walls are.

The primer should be applied with a paint roller, but if there are areas that are difficult to reach, it is worth working with a wide brush. The primer should dry for about 3 hours, and then you can start pasting the wallpaper.

And one more way.

Priming the walls with an adhesive for wallpaper

Many people know the option of priming walls directly with an adhesive for wallpaper. But do not rush with this method of processing, and you should know that not any glue will work, but only a few brands of wallpaper adhesives are suitable for priming walls.

If the glue is intended for priming wall surfaces, then this must be indicated on the package.
It should also be written on how exactly to dilute the glue in order to use it as a primer.
If there is no such inscription, then the glue will not work. And although in certain cases such a material can be used, it cannot be compared with the same acrylic primer, because it is much easier and more pleasant to work with it.

So you can safely say that you should not save on priming the walls in the house and reinvent the notorious bicycle, because acrylic putty was invented and will make your home much better.

Do-it-yourself primer

In any construction market there are components in order to make a primer for walls under the wallpaper with your own hands. Such a composition is not difficult to make, it does not take much time, and it is also immediately ready to work.

The most important thing in manufacturing is the correct proportions. Each recipe, which is described below, will help you understand how to make the tool yourself.

Composition of deep penetration

Requires 1 liter of PVA glue, 8 liters of water and 1 trowel of crushed chalk or cement. You can make the tool like this:

Pour the adhesive into the container, add water and mix until smooth.
Add chalk or cement powder.
Strain the mixture through a gauze bandage.

As part of the primer, PVA glue protects the surface from moisture, and it also has excellent adhesion properties.

Firming primer

You will need 0.5 liters of wood (bone) glue, 0.1 kg of copper sulfate , 7 liters of water and packaging of laundry soap by 65%.
The primer composition is done as follows:

Bring water to a boil, and then pour the soap crushed on a grater into it.

Reduce heat and add copper sulfate and glue.

Keep the mixture on fire for 1/2 hour and stir.

Strain the mixture through a gauze bandage.

The reinforcement mix not only helps to strengthen the structure of concrete walls, but also protects against the formation and growth of black mold.

Primer for wood

You need 1 liter of water, 0.25 kg of alum, 30 grams of drying oil, 0.2 kg of dry paint glue, packaging of laundry soap and 2 kg of chalk. Cooking:

Pour boiling water over the alum (3 liters).
Dilute the adhesive with the remaining water.
Put water with glue to warm up and add soap, and then drying oil and water with alum.
Stir well, add chalk and stir again.

Please note that penetrating primers are fortifying properties and antifungals are adhesive. For this reason, you can use the tool for tasks not intended for it.