Suzhou painted white walls and wrote slogans.

If the area of paint falling off the wall is small, it can be repaired by self-painting; If the painting area is large, don't use self-painting to repair it. You can completely remove this paint surface, polish it and repaint it.

Related knowledge science:

1. Shake the bottle of self-painting repeatedly before self-painting. In order to fully stir the acrylic acid in the self-painting process, it is necessary to keep a distance of about 20 cm during the self-painting process. If the distance is too close, bubbles will accumulate, if the distance is too far, the amount of self-injection will be wasted. Therefore, attention must be paid to dust prevention and ash pollution prevention during spraying.

If you spray the wall with self-spray paint, you can try using water first, because some paints are water-soluble. If you can't clean them, you can buy special cleaners in the market to clean them. If you can't operate it yourself, it is recommended to find relevant staff to handle it at home.

3. Self-painting itself is very easy to dry. Moreover, the self-painted paint film is very easy to fall off. When using self-painting, it takes more than two minutes to spray each time. Spray it three or four times at a time to completely cover the color below.