At present, the floor paint system for most buildings requires DPM. The waterproof layer is usually formed by covering the ground base with polyethylene waterproof material or asphalt waterproof material. Wet through the assembly leads to hydrostatic pressure, such as ground water that leaking out of the base surface. A floor system with a waterproof membrane or sink or drainage pipe will not occur. But we also need to be aware that if only drainage pipes are available, but there is no waterproof floor system, we need to conduct a basement moisture test, combined with other relevant factors to consider, such as groundwater level. Serious hydrostatic pressure even leads to failure of floor surface.
Waterborne epoxy floor
Many resin flooring systems can not be used on high water content substrates. Therefore, if this kind of floor paint material is reused, the bottom coating will be damped before completion, and it is likely that the whole floor system will be greatly affected by the firmness after finishing the coating, which will cause the floor layer to bubble, stratify and even lose. Effect.
Generally speaking, only the following situations can lead to excessive water content on the base surface.
1. Modern building without waterproof layer
Some types of buildings, such as warehouses or logistics centers, do not have floor systems themselves, so there is no waterproof layer. But once it is converted to other functional buildings, the problem of excessive moisture content will emerge.
2, the completion time of the base surface is short or dry.
A large number of practices have proved that natural air drying after the completion of the base is the best, otherwise it will probably lead to a variety of problems in the floor system after completion. But modern construction speed often can not consume a lot of time, so the use of resin as a surface coating method is becoming more and more popular.
3. Failure of waterproof layer.
Waterproof layer may fail, although there are many reasons for its failure, but usually due to improper coating, or coating during the waterproof layer was damaged, such as pierced by steel bars.
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