A whitewash of the ceiling along the old whitewash. Is it possible to bleach the ceiling on the old whitewash?
It is recommended to whitewash or paint ceilings onlyafter the old finish is removed. However, the matter is rather complicated. Scraping from the ceiling the old chalk or lime is long and tedious. In addition, there is a lot of dirt in the house after that. Previously, glue was added to the chalky solution before whitening. If the surface is finished with just such a tool, its purification does not turn into torture at all. Therefore, for sure many owners of houses and apartments would like to know if it is possible to whitewash the ceiling on the old whitewash, and how to properly perform such an operation.
What you need to know about
In principle, to paint or bleach ceilings, nottaking off the old coating can. But not in all cases. So, for example, whitewashing of the ceiling along the old whitewash with chalk is extremely undesirable in case it is covered with lime (and vice versa, respectively). Otherwise, on the ceiling must appear inaccurate stains. If you do not want to clean off the old coating, then the ceiling should be bleached with the same remedy that was used before. Do not also use lime or chalk in the event that the surface was previously treated with water-based paint. The surface is simply not spilled. The ceiling will remain yellow, how many layers would not have been applied.
Using paint - is it possible?
Many owners of houses and apartments are askedthe question is also whether the ceiling can be whitewashed over the old whitewash with water-based paint. It is believed that the use of this tool is permissible. But only in the event that the layer of old finish is not too thick and keeps on the ceiling hard enough. Oil paint or enamel on whitening should not be applied in any case. With their use, the old coating will still have to be removed.
Preparation for finishing
In the event that you decide to do thisoperation like a whitewash of the ceiling along the old whitewash, before starting the treatment you will have to carefully prepare the old surface. Chalk on the layer of plaster usually lies exactly. Lime can also come off pieces. Therefore, in the latter case, before whitewashing, you need to check the entire ceiling for the presence of such detachments. Of course, all the pieces that have come off should be removed with a spatula. After performing this operation on the ceiling, of course, there will be unevenness. They need to be sealed with a special chalk filler or a thick lime mortar with the addition of a small amount of PVA glue (depending on the type of old finish). Of course, you need to smudge and all available on the surface of cracks and chips.
Before proceeding to leveling the ceiling, itsit is advisable to pass a damp rag to remove dust, spider web, etc. It often happens that the old chalk or lime coating is yellow. After applying a new finish, this yellowness, most likely, will still shine through. Therefore, before starting the work, this color-changing surface should be bleached. Such a need, for example, will necessarily arise when decorating the kitchen. Yellow ceilings are also in the event that one of the owners smokes right in the apartment. Whiten such a surface is not difficult. It is enough to add to the water, which is dipped in a rag when cleaning, a little inexpensive means "Whiteness". If the ceilings are very yellow, they should be wetted in the prepared solution with a roller. Then you should wait until the surface dries.
The whitewashing of the ceiling over the old whitewash: technology
Chalk and lime are usually not very goodadhesion to concrete. Therefore, the ceiling, previously finished with such a tool, should be treated using a roller rather than a roller. In this case, the surface will be smooth and neat. Cushion use is also allowed. But when using this tool during the execution of the work, you will have to carefully monitor the fact that there are no stains left on the surface. Of course, whitewash ceilings on the old calcareous or chalky layers should not be one, but at least two or three layers.
Use of water emulsion
Asked about how to whitewash the ceiling byold whitewash, you should, of course, determine, including the type of finishing used. Chalk and lime in the design of ceilings today are extremely rare. In most cases, the owners of apartments and houses use water-based paint. This means on the surface of the ceiling is applied much more smoothly. In addition, the water-based emulsion does not exfoliate with time. But of course, this finish will last long only if it is correctly applied.
Before staining with water-based paint,bleached ceiling is worth priming. In this case, a special means of deep penetration should be used. After the primer has dried, you need to test the old coating for strength. To do this, just try to scratch the ceiling with a spatula. If the old coating is easily removed - it is better not to take risks and still remove it. If the chalk impregnated with the primer or lime is held firmly - you can proceed to staining.
Sometimes the owners of apartments and houses finishwhitewashed ceilings with water-emulsion and without prior priming. This is also permissible. But only in the event that a very high-quality paint is used from a good manufacturer.
Basic rules of whitewashing
Of course, before you startoperations like a whitewash of the ceiling along the old whitewash, the room needs to be prepared. Floors and furniture should be covered with technical polyethylene film. Put on your hands rubber gloves. In particular, this is important if slaked lime is used for processing. As you know, it is able to severely corrode the skin.
All doors and windows before the beginning of whitewashing of ceilings with water-emulsion, lime or chalk must necessarily be closed. Otherwise, on the ceiling after drying, ugly streaks and streaks will appear.
Use of special tools
The sprinkler gives a very thin finish layer. Therefore, the whitewash of the ceiling on the old whitewash with water-based paint when using this tool should be made at least in three layers. This allows you to get a smooth, absolutely white and clean surface. Before applying each subsequent layer, it is necessary to wait until the previous one has dried completely. This rule, by the way, is observed both with the use of a spray gun and a roller.
Whether it is necessary to finish a surface without preliminary clearing?
So, we found out whether it is possible to whitewash the ceiling onold whitewash. In principle, this is allowed. If all of the above recommendations are followed, the owner of the apartment or house can eventually get a fairly even and beautiful coating. However, to correct such a finish in the future, unfortunately, will have to earlier than if the ceiling had been previously cleaned.
Therefore, before making a decision about whitewashingwithout removing the old layer, it is worthwhile to think carefully. Lime keeps on the ceiling pretty tight. Therefore, if the surface is finished to it, to apply a new layer without removing the old ones still makes some sense. But the chalk is removed from the ceiling very easily - just using a rag and water. Therefore, in this case, it is more expedient to pre-clean the surface.