1. water supply: generally, water supply is carried out according to the requirements of latex wall manufacturers. Too much water will naturally increase the brushing area, but because the paint film is too thin, there will be quality problems such as latex wall powder; Too little water will lead to sagging and tearing of latex paint.
2, the number of times to brush the wall: if you only brush once, a bucket of latex paint (20 kg) can brush a wall of 240 square meters; if you brush twice, you can brush 120 square meters.
3. Other factors: If the wall is an old wall, the base is relatively dry and there are old wall marks, in order to achieve better brushing effect, the brushing times will increase, in this case, the brushing area will naturally decrease. If you brush it three times, a bucket of latex paint (20 kg) can only brush 80 square meters.
Extended data:
Latex paint is the common name of latex paint, which was born in the middle and late 1970s. It is a kind of synthetic resin latex paint represented by acrylate emulsion. Latex paint is a water-dispersible coating based on synthetic resin emulsion, which is refined by grinding and dispersing fillers and adding various additives.
Latex paint has many advantages different from traditional wall paint, such as easy brushing, quick drying, water resistance and good scrub resistance of paint film. In our country, it is customary to use synthetic resin emulsion as the base material, water as the dispersion medium, and add pigments, fillers (also known as bulk pigments) and additives to make a coating, which is called latex paint, also known as latex paint.
Correct construction methods and precautions:
Before the construction of latex paint, all the shells and cracks on the wall surface should be removed and filled with fillers to remove all the residual pulp, garbage and oil stains on the wall surface. The large area of the external wall should be treated by frame. Grind the concave-convex part and rough surface, then rinse the wall surface, and brush it after it is completely dry. Before using the roller, be sure to brush the parts that the roller can't reach, and then roll them on a large area after 2~3 hours. Rollers should be of high quality.
During construction, apply primer first, and then finish painting after the primer is completely dried for about 6 hours. Avoid construction in rainy and foggy weather. Generally speaking, it is best to construct at 25℃ and 50% humidity. Before painting and drying, the coating must be protected from rain and dust pollution. Attention should be paid to the construction when the wall temperature is lower than 10℃. In the second decoration, the original coating must be carved from the root before the latex paint is completed. Then mix with Shuangfei powder and cooked rubber powder to make the base material. Then brush latex paint, and the surface layer needs to be brushed 2 to 3 times.
References:
Baidu encyclopedia-latex paint