The initial action for the repair of your ceiling is to remove the old whitewash and plaster. This is one of the most complex and laborious processes. Previously, the old plaster was examined and tapped, checking for strength, in the places where it was chopped off, it was replaced by a new. Or used another option, washed the old surface with soapy water, and then a solution of ammonia, also used a solution of soda, and at the end they completely washed off with clean water.
In the case in water -based paint, you will have to spend more efforts to remove the old layer. To facilitate the process, experts advise to remove only peeling places with a spatula, expand cracks by any sharp object. You can also use the folk method, stick the old newspapers on the ceiling, and when the glue dries, when removing newspapers, the old paint will come with them. Either another option, moisten the old coating with a damp roller, and then repeat the action after 15 – 20 minutes, after all this you need to create an air flow directed to the ceiling, this can be done using a fan, the old paint is weathered and swollen, after which it is ease. can be removed with a spatula.
If your ceiling is covered with enamel paint, and the enamel coating is in excellent condition, and you just need to refresh it, then you can process the old layer with sandpaper and apply a new one.
To combat fat spots, you can use a 2-3% solution of hydrochloric acid or a 5% solution of soda soda, which is applied to the necessary area. Then the processed place is washed with water and the paint is removed with a spatula and the necessary color is applied again. But sometimes it happens that there is little alone alone, and then the oiled area is cut down with a hammer.
In such cases, cavities and bumps are removed with soil, then applied new plaster and thoroughly dried. It should also be noted that fat spots cannot be painted over with water -based paint.
