Currently, a huge number of design options are used for room design. Coloring of walls in various tones and combinations is widely applied. In order to lay the paint evenly and hold on for a long period of time, before starting painting work you need to know how to prepare the walls for painting, because only this way you can be sure that the result will be excellent.
Depending on the type of walls and the presence of any kind of coating on them, the approach to their preparation will change, therefore, we will consider how to do the work with our own hands.
We strongly recommend de-energizing the room by turning off the power supply in the instrument panel. Otherwise, it is possible that electric shock will occur if the wiring is accidentally damaged. Remove switches and sockets if you have to plaster the walls. We will not talk about shelves, paintings and sconces, it is clear that they should not be indoors, but it is better to take out heavy pieces of furniture too. In the extreme case, they can be wrapped with polyethylene, secured with scotch tape, and then covered with cardboard so that a fragment of plaster that has flown away suddenly does not damage cabinet or upholstered furniture.
No matter how carefully you wrap a wardrobe or a sofa with polyethylene, there is still a high probability that dust will get inside.
Remove the wallpaper
First, from all surfaces removed the old coating - wallpaper or paint. If the wallpaper is moving away poorly, they are pre-moistened with warm water and then removed with a spatula. The walls are cleaned of dust.
If, when stripping off wallpaper, the old plaster peels off the wall and there are large cracks, then it is removed completely.
Remove old paint with an electric drill with a brush
Often in apartments and houses you can find walls painted with oil paint, which is firmly embedded in the basement. But this is not a sentence, as there are several ways to remove it.
Removing paint with a scraper
Removing paint with a building hairdryer
Remover for oil paint
Remove old paint with a grinder
We will need this tool to remove water-based paint
Water-based paint began to be widely used not so long ago, but often there is a need to update it or paint the walls with oil paint. First of all, you need to figure out whether it is necessary to wash off the emulsion paint at all.The fact is that if the paint does not peel off, and there are no other compelling reasons for removing it, then there is no need to remove it. In such a situation, you can apply a layer of fresh paint over the old one. First, remove dust from the wall and prime the surface with an acrylic primer. After the wall is dry, you can paint it.
If the old paint is churned, peeled off, does not resemble the color or many layers of paint are applied, then it will have to be removed. Consider some ways.
Procedure for removing water-based paint
Of course, no flushing water from a hose, so you will need some more tools:
Paul covered with newspapers or plastic wrap.
The algorithm for removing waterproof emulsion paint will be as follows:
Many people know the picture when, when removing the wallpaper, the coating applied to the wall comes off with them. Now use this method to remove the water emulsion.
As is the case with oil paint, you can use a grinder or hair dryer to remove a thick layer of emulsion.
There are many effective preparations on sale that are intended for washing water-based paint. Unfortunately, they are unsafe and can, if they do not comply with the manufacturer’s instructions, harm human health. Although the instructions for use may differ slightly depending on the manufacturer, it comes down to one thing - the product is applied to the wall (except plastic), and then after 10-15 minutes it is removed together with the paint.
From the wall of drywall paint can be carefully removed with emery cloth
As a rule, no one ever paints plasterboard walls, so in most cases they do not need to be removed from paint, and minor irregularities or pits can be leveled with a putty.
But if such a need has arisen, then it is important to remember that tearing off the paint can tear off the cardboard. Therefore, cleaning work is best done with emery cloth or washes. Then the wall is dedusted and impregnated with primer. In this preparation of the base of plasterboard is completed.
Having finished with the removal of the old paint, let's proceed to the preparation of the base.
In those places where the paint has peeled off, the walls need to be aligned
The plastered walls, which have large holes and cracks, are treated with a cement-sand mortar, and after it is dried, with a starting putty, which has particles of fine sand in its composition. It is applied with a layer up to 5 mm. This putty fits well on the wall, does not crack when dry, and does not shrink. The curing time is about 40 minutes, so it should be diluted in small quantities.
Curve wall needs to be aligned
If the unevenness is more than 4 mm, a reinforcing mesh is used. First, the wall itself is aligned, and then the corners. Concrete walls should be without cracks, but if there are any, they should be leveled together with grooves with a putty.
According to its composition, the used putty is divided into several types:
The walls must be leveled with a finishing layer of putty
If before starting work on the walls there are traces of mold or dampness, they are treated with special compounds against fungus and mold. And raw places are dried before.
Now you can paint the walls
So that the paint lay flat and held for a long time, the walls must be perfectly smooth, without irregularities.
If you decide that this occupation is not for you, then before inviting the masters, you need to know how much such work costs. Pricing ranges from 150 rubles. for m 2 , but so that the amount does not grow "accidentally" by a third, or even by half, agree in advance with the foreman that he should come and, having assessed the complexity of the work, named the specific amount.