First of all, measures should be taken to treat the wall foundation, especially the dust and particles on the surface should be treated in time. Make sure that the walls are smooth and polished before painting. If it is old house painting, it is necessary to wipe off the old wall skin of the wall so as not to affect the effect of painting the wall.

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1, cracks are handled well, and the wall needs to be putty, usually two or three times. Before construction, mix the materials, mix putty and clear water in proportion, and stir evenly. During construction, a scraper can be used to scrape the wall surface, so that the putty can be firmly bonded with the wall surface. Construction should be top-down, one step at a time, do not repeat painting, so as not to affect the beauty and smoothness of the wall.

When the putty on the wall is dry, you can start painting. Pay attention to brush the primer first, which can enhance the moisture resistance of the wall and prevent the wall from becoming moldy. When preparing the primer, it is best to add some water to ensure that the wall is wet. After the primer is completely dried, it is polished, and finally the topcoat construction can be started. There is no need to add water to the top coat, otherwise it will affect the film thickness.

3. After all the paints are mixed evenly, start painting. Before painting, you should brush the primer to prevent the wall from getting wet. After painting the primer, you need to wait for a while. After completely drying, brush the top coat. Generally speaking, the top coat should be brushed more than twice, and 5% water can be added for the first time to facilitate wall absorption. Brush the top first and then the wall, and brush the wall from top to bottom.