Today, the surface can be whitened not only with lime, but also with the help of resistant water-based paint. This type of finish does not require special knowledge. Whitewashing can be held in your apartment by anyone.
Preparation for whitewashing
First you need to prepare the surface. The whole preparatory process can be divided into several main stages.
For making reliable and good putty can use a minimum of components. We need to take wood glue, plaster and chalk. All components are mixed in a ratio of 2: 1: 2. If there is a need for a liquid putty, then the composition is diluted with water.
The composition described below can be used as both putty and primer. It is suitable for sealing gaps, and to cover the surface with a thin layer.
Home primer Whitening of the ceiling without a primer is not possible. One of the most reliable recipes priming composition includes linseed oil.
When the primer is dry , you can start whitewashing. The cheapest option is to cover the surface with slaked lime or chalk. To begin, prepare the composition
The finished composition is applied to the ceiling with a roller. It is advisable to close the walls if they are already finished and the ceiling is painted separately.
If the sun's rays penetrate into the apartment, then it is better to cover the windows. The drying process must be natural. Drafts also should not be. Otherwise, the surface may be uneven.
Whitening with water-based paint it is made a little differently, but does not represent special difficulties.It is enough to find out a number of nuances when working with this coating.
The whole process takes place in several stages:
The ceiling must be cleaned to the ceiling plate itself.
When the surface is cleaned, it is primed with a shop primer. It is better to buy ready-made mixtures for paint.
All irregularities and cracks are filled with putty.
After the putty has dried, it must be sanded. This is necessary so that the surface is perfectly flat. Otherwise, the edges of the filled cracks will be visible under the paint. For grinding apply special mesh.
At the last stage, the coloring composition is prepared and applied. The paint consists of two parts: the actual coating and color scheme. Kohler allows you to give the surface any shade.
You should be careful with the color scheme, as well as with blue when preparing the chalk composition. The most important thing is not to overdo it, otherwise the color will be too saturated.
Inaccessible surfaces are usually brushed, and the main part of the ceiling - with a roller.
Can the ceiling be painted without washing the old whitewash? There are some situations that allow this. For example, if whitewashing keeps well. You can also paint on whitewash in those cases if the old layer does not lag behind the concrete slab, if there are no cracks.
But the decision to paint on the old whitewash depends largely on what the ceiling was painted earlier. So, if chalk was used, then it is impossible to use lime otherwise ugly stains are formed on the surface. The same applies to the case when the ceiling is painted with lime, should not be whitened with chalky compositions.
It is best not to apply a repeated layer of whitewash on the old coating. This is explained by the fact that over time it loses its adhesion properties and, when painted or after a short time, can simply crumble.
Painting of hard-to-reach areas
How to determine how the ceiling was painted earlier? Enough to hold a dry finger on its surface. If the finger became white, then whitewashing was carried out with a chalk-based composition. If the coating does not stain your finger, then, most likely, there is a lime on the ceiling. She definitely will not withstand re-staining, since it will completely crumble. Therefore, it must be completely removed.
If water-based paint is applied to the ceiling surface, it is also recommended to remove it from the surface of the ceiling, especially those places where it began to peel off from the base.
The technology of applying paint will be discussed in the following video: