Can I paint on whitewashing
Painting, although undesirable, but possible. And only in those cases, if:
- There is a very thin layer of whitewash;
- It keeps well, does not crack and does not crumble.
Otherwise, when staining, it will be removed with a roller. And as a result, we will get an unqualifiedly colored and unaesthetic surface.
How to paint over whitewashing
Before applying the paint, the surface is covered with a deep penetration primer. Then, it is allowed to dry completely. And then they conduct a test for the desirability of staining, scratching the surface. If it is easily amenable to destruction and removed, it is better not to risk and not paint it. In this case, you can not do without a complete cleaning of the surface from the chalk. Well, if the primed surface has passed the test, then it's safe to start painting.
Water-based paint for whitewashing
If water-emulsion paint is chosen as the paint for surface painting, then it is possible to do without a primer. This type of paint itself will act as a primer, binding and securely fixing chalk particles.
If the layer of chalk or lime is thin, firmly held and has no blisters and cracks, the water-based paint applied to it will last for many years.
In which cases it is better not to paint the ceiling and walls on whitewashing
It is strictly not recommended to apply paint on chalk or lime if:
- There is a thick layer of whitewash with cracks and swollen areas;
- If an oil paint or enamel is to be applied.
In order not to risk and, in the end, not to get a bad result, it is better not to save time and effort, and immediately remove the layer of chalk or lime. Then the result will be much better and will last for many years.
How to apply paint to whitewash. Ways to prepare the ceiling or walls for applying
paint If there is no possibility to paint the ceiling or walls on the old covering, it is necessary to clean it. This can be done depending on the thickness, the applied layer and the quality.
But in any case, the first thing to take care of all the furniture in the room. It should be closed with a film and tape to avoid spoilage.
A small layer can be removed using a fleecy roller. It needs to be wet and clean the ceiling, periodically rinsing. You can also use a brush for these purposes.
If the layer is thick, but does not hold very well, then it can be removed with a spatula, previously wetted. Then it is necessary to putty all the cracks and level the surface. And only then you can grind it and primer it, preparing to apply paint.
Well, the last case: the lime is applied in a thin layer, which holds well. Most often this happens if glue was added to the strength solution. It must be removed using a grinding machine.
The surface must be primed before application. To do this, you can use a special primer, linseed oil or wallpaper paste. The choice should be made depending on the paint to be applied subsequently.
After all the preparatory work on the ceiling and walls are completed, you can proceed to the painting. You can do this with a roller, a wide brush or a spray gun. Applying the latter, it is necessary to apply the paint in three layers, letting each dry.
