When choosing a paint system, how to determine the thickness of each layer of paint?
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Some paint primers require 30 RMB, while others require 120 RMB. How do you determine this?
According to the site environment, the choice of paint type, etc.
Regarding the dry film thickness of paint, are there clear specifications for different paints? ?
Generally, paint instructions have recommended spraying thicknesses. The primer is generally 20~50μm, and the topcoat is about 40~80μm. For reference only, the performance of various paints is different, and the corrosion resistance requirements of the products are also different. The paint film thickness standard is based on the national standard construction specifications. When there is no requirement in the design, the deviation of the paint dry film thickness is -25 microns. Then the allowable deviation for each layer is -5 microns, which is the construction acceptance specification. "When the design does not require it, the deviation is -25 microns. However, if the design requires it, the spray coating thickness can only be greater than or equal to the design requirement. The unit measuring points can have a thickness lower than the design requirement, but the average value of the measuring points must be greater than or equal to the design requirement.