We know that one of the important steps in the construction process of epoxy floor paint is to grind the cement floor and remove the grease and sundries on the cement floor. Why? Now the epoxy floor paint manufacturer will analyze the purpose of grinding the cement floor before making the floor paint. Before the construction of epoxy floor paint, the original plain ground (cement or terrazzo floor) needs to be polished. This step is very important. Only when the surface is properly polished, can the adhesion between the epoxy floor paint and the original ground be guaranteed, which is directly related to the service life and surface effect.
I. Purpose of polishing cement floor before making floor paint
1. Ensuring and Improving the Adhesion of Floor Paint Coatings
The treated concrete cement base surface can make the primer 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 the care of the base surface, the lighter one causes pitting in the floor paint coating, and the heavier one may lead to large-scale 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. Create appropriate surface roughness
The adhesion of floor paint coating on concrete surface mainly depends on the mutual attraction between polar molecules in floor paint and surface molecules of substrate. The surface of concrete will become rough after grinding by floor grinder. With the increase of the 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 also 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.
2. Ground grinding treatment of cement
Before the construction of epoxy floor paint, the original plain ground (cement or terrazzo floor) needs to be polished. This step is very important. Only when the surface is properly polished, can the adhesion between the epoxy floor paint and the original ground be guaranteed, which is directly related to the service life and surface effect.
A. Select suitable professional dust-free ground grinders (imported from the United States, Germany and Taiwan) to completely polish the plain ground, remove surface cement slurry or other adhesives, and grind the surface roughly to increase the adhesion between the next step and the epoxy coating.
B. Use high-power vacuum cleaner to clean up.
C. The grounding edges of the vibrating machinery and equipment should be treated by manual grooming to ensure the adhesion of epoxy floor paint on the edge.
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