Many people do not have a deep understanding of floor paint, or they have experienced it, or heard from hearsay, and they always think that the adhesion of floor paint is not good and it is easy to crust. In fact, they did not carefully observe the specific situation of the crusting of the floor water paint. What kind of crusting is it? Is it separated from the concrete alone? Or is it attached to the concrete? If you look deeper, epoxy coating There is almost no separation from the concrete, and it is basically attached to the concrete.
The hardness of floor water paint is relatively good. Compared with ordinary environments, once hard, it is relatively brittle, has a pressure drop, and is easy to break. Therefore, in terms of basic treatment, it has higher requirements for the foundation than traditional epoxy. high.
First, the concrete should be polished carefully. Do not miss any places that are difficult to polish, especially many areas with poor strength. You must polish to strong areas, otherwise, the loose areas will fall off with the coating, and It will take a long time, and it may be removed before the project is settled. At the same time, it is recommended to polish twice, in a crisscross pattern, to prevent leaks and polish more thoroughly.
Secondly, After polishing and cleaning, it is recommended to use vacuum cleaner to vacuum the paint so that the paint can penetrate better. The water tension is large, which easily affects the permeability;
Thirdly, For those who do not have expansion joints On the ground, deep seams should be cut to prevent irregular cracks from forming in the future due to the internal stress of the concrete; where there are expansion joints, use steel hooks to clear the seams, and then use a vacuum cleaner to clean them.
Fourth, Where there are irregular cracks, cut the seams and repair them with epoxy mortar , and pay attention to the height difference of the repair;
Fifth, Use angle grinding on the column edges and corners. Machine performs angle grinding to make it smooth and smooth;
Sixth, Where there is water, use a water absorber to remove the water, remove the mud on the surface, and then use the floor scrubber with water to wash the floor, absorb the water, and clean it. , let it dry for one day, and then apply primer;
Seventh, Where there is oil stain, first remove the oil stain on the surface, then clean it with detergent, and then bake it with fire. If the oil stain is particularly serious, you need to knock off the concrete Recast.
The above information is for reference only. These are the most basic requirements for making floor water paint. If you want to make floor water paint, you must do the basic treatment carefully to avoid crusting.
