Before the construction of epoxy floor paint, it is necessary to treat the foundation ground. The main purposes are as follows: 1. Ensuring and improving the adhesion of the floor paint coating: the treated concrete base can make the epoxy floor paint penetrate more into the concrete surface, which plays a key role in the service life of the whole floor paint coating. Especially when there is oil and water on the base surface, it is difficult to form a continuous coating because of the poor compatibility of oil, water and paint. Even if a complete coating is formed, the adhesion of the coating will be greatly reduced and the coating will fall off prematurely. When there is dust on the surface and it is not directly constructed without base care, the lighter one causes pitting in the floor paint coating, and the heavier one may cause large area peeling off of the floor paint coating and shorten the service life of the floor paint. Therefore, at the same time, it is necessary to prepare a smooth, smooth and beautiful coating and create a good foundation for the whole floor paint project.
2. Creating the appropriate surface roughness: The adhesion of the floor paint coating to the concrete surface mainly depends on the mutual attraction between polar molecules in the floor paint and the surface molecules of the substrate. The surface of concrete will become rough after grinding by floor grinder. With the increase of roughness, the surface area will increase significantly, and the attraction between the coating and the base surface will increase exponentially. At the same time, it provides a suitable surface shape for the adhesion of the floor paint coating and increases the mechanical teeth interaction, which is very beneficial to the adhesion of the epoxy floor paint coating.