What are the steps of wall painting? Matters needing attention in mural painting

Although there are many ways to decorate the wall, many people still choose to use a simpler method, that is, painting the wall. In fact, no matter what you do, as long as it is subtle, you can achieve twice the result with half the effort. What are the steps to paint the wall? What are the precautions for wall painting? Let's introduce it to everyone.

First, the wall painting steps

1, paint the wall. There is fine white powder on the wall, indicating that the salt in the wall is "precipitated" during the drying process of cement. At this time, you can brush it off with a nylon brush or an iron brush.

2, dealing with wall lesions. After several days of observation, it is confirmed that there is no white powder precipitated and the cement wall is dry and smooth. If there is a lot of white powder precipitated on the cement wall, after cleaning, a wall primer can be applied first to prevent salt corrosion and wall cancer from forming in the future.

3. Primer first. "Primer" is specially used for walls and does not need special treatment. As for the problematic wall, we should first choose a special "primer" for this special problem.

4. Brush from top to bottom. After mixing the paint evenly with a wooden stick, brush it from the ceiling in the brushing procedure, and then brush it down, so as not to cause the paint dripping from smallpox to spend on the finished wall.

Second, the wall painting matters needing attention

1, pay attention to the weather before painting the wall, and avoid the work before rainy and snowy weather, which is not conducive to the drying of the wall after painting.

2. The humidity of the wall should not be too high. If latex paint is applied, the humidity of the wall should not be greater than 10% (some products require that the humidity should not be greater than 6%). If the humidity is too high, the moisture in the pores of the wall will prevent latex paint from infiltrating into the wall and affect the adhesion of the paint film. Evaporation of water will blister the paint.

3. The alkalinity of the wall should not be too large. Generally, the alkaline PH value of the wall painted with latex paint should be less than 10. New concrete, cement mortar and lime mortar are more alkaline, so attention should be paid to them.

4. When refreshing the color on the dark old lime wall (except the glued white wall), including the wall with more spots, you should brush it with white water first, and then set the refreshing color after it is dry.

In my life, I often see painting walls in decoration, so what are the steps and precautions for painting walls? You all know through the introduction of the above small series, I hope it will help you.