It is generally not recommended to install an epoxy flooring on underground floors without a waterproofing layer, as installing epoxy in damp or leaking conditions can somewhat affect its moisture resistance and lifespan. So, how should one apply a waterproofing layer?
Before applying the waterproofing layer, construction workers must inspect and prepare the base surface, ensuring the moisture content of the ground is within 8%. If the ground is too damp, air conditioning, fans, or sun lamps can be used to blow and dry it. Only after the ground is dry and meets the requirements can epoxy flooring be applied.
1. Fine sand, film laying
The plastic film is laid after backfilling the ground. Firstly, a layer of fine sand is spread on the surface of the backfilled soil, followed by the application of waterproof felt and plastic film, and finally, the concrete layer is poured.
2. Coated Waterproof Coating
First, apply a layer of waterproof coating on the concrete surface for the epoxy floor paint, creating a waterproof isolation layer. Then, apply a layer of cement mortar protective layer, followed by the floor paint on top of it. The principle of the waterproof coating is that after the evaporation of solvents or moisture, or the chemical reaction between the two components, a film is formed, which isolates the building surface from water, thereby providing waterproof and sealing functions.
First, deal with standing water before applying a waterproofing layer, then repair the waterproofing. Alternatively, create a 2mm thick waterborne epoxy waterproofing layer, and reinforce with concrete sealant. Afterward, apply an epoxy floor paint, which will achieve both waterproofing effects and ensure the longevity of the epoxy floor.
It is evident that both the installation of industrial epoxy flooring and the renovation of residential floors require proper waterproofing. Therefore, for epoxy flooring, ensuring a good waterproofing layer is crucial, as it forms the foundation for the construction of epoxy ground surfaces.
