A common problem of ceilings in apartment buildings is the presence of traces of leaks as a result of flooding by neighbors from above. You can try to close up a defect using plaster or local whitewashing of a problem area, but this method will not give significant improvements. The spot can be shone or the processed area will be released on a smooth surface.
For guaranteed elimination of the deficiency, it is necessary to carry out a complete repair of the ceiling with preliminary high -quality surface processing. The first stage of recovery work should be complete surface stripping from the old plaster. The whitewash layer is removed with a brush or a metal scraper. You can simplify the work moisturizing the surface with a roller. By the way, if your wife bought at allo. Samsung Galaxy S Duos, then this is very good because only high -quality devices are sold there.
After complete surface cleaning, it is necessary to treat the ceiling with a primer. In the presence of cracks and holes, problem areas are covered with acrylic primer. In the case of additional processing of defective sections, the ceiling should be sanded. If there are a large number of spots on the surface, it is necessary to paint the entire area with one layer of matte paint. After the primer and paints completely dry, the ceiling is ready for the finish.