What season is it not easy to crack when painting walls?

Walls painted in autumn do not crack easily. Because of the dry weather and suitable temperature in autumn, the wall paint is not easy to be exposed to the sun, or because the temperature changes greatly or the temperature is too low, which affects the quality of the coating film and leads to the cracking of the wall paint.

What are the causes of wall paint cracking?

1, there are many reasons why wall paint cracks. For example, incorrect wall construction will lead to wall cracking, which in turn will lead to wall latex paint cracking. For example, there is no steel wire mesh at the junction of the old and new walls, which will lead to cracks in the walls in the future. When plastering the wall with cement mortar, if the proportion of cement mortar is incorrect or the quality of the materials used is not good, the cement layer of the wall will crack and so on.

2. Before painting latex paint, if the quality of the putty we use is not good, or the putty layer is painted too thick, or the putty layer is painted next time before it is dry, it will affect the quality of the putty layer and lead to the cracking of latex paint. In addition, it is also possible that the wall cracks due to foundation settlement and other reasons, which leads to the cracking of latex paint.

3. Improper construction and maintenance of latex paint will also lead to cracking of wall paint. For example, when we brush the latex paint flat, we don't brush the primer, or brush the topcoat before the primer dries in order to catch up with the progress, or directly open the doors and windows to ventilate after brushing the latex paint, which are easy to cause the latex paint to crack.

What are the precautions for decorating the wall?

1, wall difficult to dry treatment method. If the wall is difficult to dry due to high humidity and high temperature, a dehumidifier can be used as an aid to speed up the drying of the wall. In summer, it is very easy to have the illusion that the wall has dried up. During construction, the construction personnel must ensure that the wall foundation is completely dry before painting the wall. Conditional should use professional instruments to determine the moisture content of the wall, and then carry out construction after reaching the standard.

2. Pay attention to saving paint. In summer, paint should be stored in a cool and ventilated place, and the storage container must be well sealed. Also stay away from open flames and wire sockets to avoid sparks igniting paint. It is usually recommended to use the purchased paint within one month. Paint is flammable, and the temperature is high in summer. Improper storage can easily lead to fire.

3. Extend the drying time of wall putty. Before wall painting, putty should be scraped, which generally takes 1-3 times, during which the normal drying time is 1-2 days. In summer decoration, it is advisable to extend the time for putty to dry thoroughly as much as possible, generally 2-3 days. Because the weather is hot and humid in summer, especially when heavy rain comes, the putty will dry for a longer time. In addition, when hanging putty, clean the water vapor on the wall with a dry cloth and try to keep the wall dry, which is conducive to painting the wall.