Decorative plaster is one of the most popular finishing materials. On the Internet, as well as in TV shows about repairs, they talk in some detail about the technology of applying such a coating to walls. And yet, an inexperienced plasterer does not know many of the nuances of applying this capricious material. Hence the uneven distribution of the plaster, and the surface is completely not the kind that was expected, or at first everything suits, and after a month the wall is covered with small cracks. Apparently, a number of mistakes were made, which led to such a deplorable result.
Why decorative plaster may cause defects
The root cause of cracks and chips is initially improperly applied plaster. For example, in dry and hot weather, the wall must be moistened with water more intensively than with higher humidity. Otherwise, small cracks will go over the entire surface.
Deeper cracks indicate that the alignment and cleaning of the walls were carried out poorly, or a layer of decorative plaster is thicker than necessary. And the third reason - they put the paint too early, apparently, the plaster has not dried out yet.
Will lead to defects and discrepancies in the type of room and plaster. For example, in the bathroom the humidity is increased, therefore, the plaster is needed such that is not susceptible to the formation of fungus.
Finally, non-compliance with the instructions for dilution of the finished mixture, non-compliance with the proportions, lack of experience with decorative plaster, insecure movements with a spatula - all this can cause an unpresentable type of coating on the wall.
How to fix decorative plaster errors
If, at first glance, the result is clear that it is completely different from what was expected, and it is also known that the technology has been violated, it will be correct to dismantle the plaster and finish it again.
For reliability, you can invite a specialist and listen to his verdict. If the repair of a separate site is possible, and you can find such a problem area by tapping, you need to perform it in stages.
First, find a chip or crack or gently hit with a wooden hammer in the area where the blows have a dull sound. Open the slot with a spatula until the plaster ceases to peel off. A bare wall should be visible so that the new plaster has something to mate with.
Moisten the resulting hole along the contour with water and seal it with the same mixture as the entire wall. Different mixtures may not adhere to each other. After closing the hole, grate the plaster. If after the repair the area is still noticeable, it makes sense to paint all the walls in the same shade. This will help to hide repair marks.