Epoxy floor paint has the advantages of seamless, corrosion resistance, dust-proof and waterproof, convenient maintenance, high strength and wear resistance. It has a bright and beautiful surface and can achieve mirror effect. If the base floor is uneven, the resulting floor paint will appear uneven in the case of bright reflection, affecting the overall aesthetics of epoxy floor paint. Therefore, before the construction of floor paint, it is necessary to check the flatness of the foundation ground. If the ground is uneven, it needs to be treated first.
Testing method of foundation ground roughness:
Generally speaking, epoxy floor paint requires the base surface smoothness to be within 2m range, measured by 2m gauge, and the drop can not exceed 2m M.
Solutions to foundation ground irregularity:
A. The drop is less than 5 mm
1. Grinding. The base surface is polished with a diamond grinder equipped with a grinder or a floor washing grinder, and the high point is polished parallel to the low point.
2. Scraping sand. Epoxy mortar floor is suitable for this method. During the construction of intermediate coating, in the process of sand scraping, a mixture of quartz sand and epoxy resin is used to fill the base of concrete to achieve leveling effect.
B. A drop greater than 5 mm
If the smoothness of concrete base is more than 5 mm, the cost of leveling by grinding machine or scraping sand in epoxy resin will be enormous, and the excessive thickness of sand layer will affect the performance of floor paint. At this time, we can rebuild the cement mortar layer of 3-5 cm on the concrete foundation with a drop of more than 5 mm, and the original slurry can be re-lightened to find the best level.
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