According to the construction of fulette project, some real stone paints lose more sand during spraying, which can reach about 1 / 3 in serious cases, causing waste. In addition to the reasons of construction methods, raw materials and formulas may also cause the above phenomenon. At present, there are two kinds of sand used for real stone paint, artificial sand and natural sand. According to observation, the amount of sand loss of real stone paint prepared with natural sand is less than that of artificial sand.
This is related to the hardness and surface state of sand. Generally speaking, it is easy to drop sand when using sand with high hardness and smooth surface. In addition, the grading of sand is also very important when preparing stone paint. The stone paint with proper gradation not only has less sand loss but also has a closer coating. Therefore, it is suggested that natural sand should be used as much as possible and the sand should be graded. In addition, the consistency of the coating also has a certain impact on the phenomenon of desanding during spraying.
When the coating is too thick, the construction is difficult, and when it is too thin, the initial viscosity of the sand on the wall is too low, which will cause the sand to fall. Therefore, freight company mind to improve the consistency of the coating as much as possible without any difficulties in construction, which is helpful to solve the problem of sand removal.
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