Precautions for wall painting

Painting the wall is an important part of home decoration. The process may seem simple, but it is actually quite sophisticated. There are also many precautions that need to be taken seriously during the process of painting the wall. The following text will explain the precautions for painting walls.

Firstly, precautions for wall painting
1. Before painting the wall, pay attention to the weather conditions and avoid starting work in rainy or snowy weather.
2. For walls that require scraping, the base surface of the wall must be treated properly. For old walls, mold, oil stains, floating dust, and loose coatings must be thoroughly removed, holes and leaks must be repaired in a timely manner, and rough sandpaper must be used to polish and level them.
3. The humidity of the wall should not be too high. Generally, it is required that the humidity of the latex paint construction wall be less than 10%. If the humidity is too high, it will affect the adhesion of the paint film, causing the paint film to bubble and peel off.
4. The alkalinity of the wall should not be too strong. Generally, it is required that the alkaline pH value of latex paint applied to walls should be less than 10.
5. When painting walls, the principle of vertical brushing should be followed from top to bottom, with each stroke set vertically. Horizontal brushing can also be done from left to right, without missing any strokes.
6. During the process of brushing lime slurry, the lime slurry should be continuously stirred to prevent it from settling and causing uneven stripes on the wall surface.
7. When painting and decorating a newly painted paper reinforced gray wall, it is necessary to wait until the outer layer of lime is completely dry before proceeding, otherwise flower spots will appear on the wall, affecting the beautification.
8. When refreshing the color on dark old lime walls (excluding adhesive white walls) and walls with many spots, it is necessary to first brush with white lime water, wait for the wall to dry and turn white, and then apply the refreshing color.
Secondly, precautions for painting walls in summer
1. Attention should be paid to preserving the paint. In summer, the temperature is high and the paint is flammable, which may cause a fire due to improper storage. Therefore, in summer, the paint should be stored in a cool and ventilated place, and the sealing of the storage container should be good. Be careful to stay away from open flames and electrical outlets. It is recommended to use up the purchased paint within one month.
2. Extend the drying time of wall putty. Before painting the wall, it is necessary to apply putty, usually 1-3 times, with a drying time of 1-2 days. In summer, the weather is hot and humid, so it is advisable to extend the drying time of putty as much as possible, preferably 2-3 days. Especially during typhoon days, the drying time for putty will be extended
3. During summer, when painting walls, it is advisable to avoid rainy and cloudy days as much as possible. During the construction process, the wall foundation may be relatively damp, which can easily create the illusion that the wall has already dried out. If the wall is not completely dry before painting, water infiltration into the paint surface can easily cause the paint film to lose adhesion and cause the wall to bulge. Therefore, it is best to use professional instruments to measure the moisture content of the wall when painting in summer, and only proceed with construction after reaching the standard.
4. After painting, the wall should be protected from direct sunlight. The summer sunshine is intense. If the painted wall is exposed to direct sunlight for a long time, it is easy for the color of the wall to peel off, and the white wall is prone to turning yellow. In addition, exposure to sunlight can cause the wall to heat up, and after painting, the temperature of the wall will decrease, which can lead to cracking of the paint surface.
Whether you are painting by yourself or hiring a decoration company to paint regularly, all decoration owners should pay attention to the above precautions for painting walls, and proceed with caution in order to paint a perfect wall.