Before construction, epoxy floor paint should first confirm the ground condition. In construction, epoxy floor should maintain a clean environment. If the ground is uneven, there are old paints, and there are loose layers, it will directly affect the overall construction effect of the floor. Therefore, the ground should be fully ground first, so as to reduce the amount of paint used, increase adhesion, make the film not easy to damage, and make the overall effect. It looks smoother and more beautiful. Guanglei Floor Paint Factory aims at epoxy flooring and removes cement blocks and powders on new cement flooring. It can effectively open cement pore, so that epoxy primer can penetrate and absorb better. The quality of epoxy floor paint project plays a vital role.
So it is a very important step in the construction technology of epoxy floor paint to use special grinder to grind the cement or concrete floor, so as to remove the slurry layer on the surface and make the surface of the base meet the required roughness. The purpose is to enhance the bonding force between the coating material and the substrate. Specific grinding thickness is not required, depending on the original quality of the grass-roots.
The most important function of ground polishing is to clean up the ground debris, concrete capillary holes, which is conducive to the epoxy floor paint primer more easily penetrate the concrete floor and bond more firmly. And the ground before polishing is Matt and dusty, and after finishing the epoxy floor paint, the ground is very clean, and the return light, the original ground irregularity defects are undoubtedly exposed, so we must explain this to the owners before the construction of the floor paint.
There are three methods of ground polishing for floor paint construction:
Dry polishing method: grinding with sandpaper, milky stone and fine stone powder, and then cleaning. This method is suitable for hard and crisp or decorative floor paint surface. The disadvantage of dry grinding is that it is easy to produce a lot of dust during operation, which affects environmental hygiene.
Wet grinding method: grinding with sand paper dipped in water or soapy water. Water milling can reduce wear marks, improve the smoothness of coatings, and save sandpaper and labor. But after water grinding, attention should be paid to spraying the lower layer of paint. First, it is necessary to wait until the water grinding layer is completely dry before applying the lower layer of paint. Otherwise, the paint layer will easily become white. In addition, the substrate with strong water absorption is not suitable for water grinding. Wet grinding is better than dry grinding. But in the construction of epoxy floor paint, dry polishing method is used. Because the construction of epoxy floor paint is the last link in decoration project, the construction period is shorter. If the ground is polished by wet polishing method, the ground will be completely dry. Moreover, if the ground is not dry enough, the epoxy floor paint is likely to foam and delaminate.
Mechanical grinding method: higher production efficiency than manual grinding method. Generally, it is operated by an electric polishing machine or an electric polishing machine with polishing paste. When polishing, attention should be paid to: the surface of floor paint coating is completely dry before it can be carried out; the force should be uniform when polishing; after wet polishing, it must be washed with clean water and then dried; after polishing, there can not be a large number of naked-eye bottom phenomenon.