The purpose of ground polishing before construction is introduced. It is known that ground polishing is a very important step in the construction process of epoxy floor paint, which directly affects the construction effect of epoxy floor paint. The following epoxy floor paint manufacturers explain to you the points needing attention before construction. Before construction, the epoxy floor paint will be fully polished and cotton removed, which can reduce the amount of paint used, increase adhesion, make the film not easy to damage, and make the overall effect look smoother and more beautiful. Before the construction of epoxy floor paint, the ground is polished to remove the cement blocks and powders on the newly built cement floor, which can effectively open the cement pore, so that the epoxy resin primer can penetrate and absorb better, and the quality of the epoxy floor paint project plays a vital role. 1、基础地面打磨之前应初步清扫地面上的灰尘垃圾，如果现场有机器设备，应通知业主将其转移或者包裹好，避免打磨时灰尘对机器设备造成损害；
1. Dust and garbage on the ground should be preliminarily cleaned before grinding the foundation ground. If there are machinery and equipment on the ground, the owner should be notified to transfer or wrap it up so as to avoid damage to the machinery and equipment caused by dust during grinding.
2. Preliminary inspection of ground roughness with a 2-meter gauge, and marked the parts that affect the roughness.
3. Expansion joints of existing asphalt (refer to "Processing Method of Expansion Joints before Construction of Epoxy Floor Paint"). If there is no special requirement in the contract, just cut the asphalt below the ground one millimeter, in order to prevent the asphalt from being brought to other places when polishing, which will lead to the paint surface yellowing; if there are special requirements, the things in the expansion joint should be thoroughly cleaned up;
4. When the dust-free grinder grinds the ground, especially the marked parts, it should be careful. The average walking speed of the grinder should be 10-15 meters per minute.
5. When dealing with the ground, the sand blasting machine should first use a dust-free grinding machine to grind the high parts, and then uniform sand blasting treatment after the roughness basically meets the requirements, so that the sand blasting machine can run at a basic average speed, and the specific speed depends on the strength of the ground and the effect of sand blasting.
6. Check oil stains, water marks, asphalt, cement knots, latex paint, cement fly ash, etc. to see if the cleanliness requirements meet the standards.
7. Primer painting can be carried out only after the ground treatment reaches the standard before painting.
8. For corners, edges of equipment or areas beyond the reach of dust-free grinders, the manual grinder is used to process and dust, but the walls and equipment can not be damaged;
9. Check the smoothness again and continue to grind the parts that do not meet the requirements until the smoothness meets the requirements (2m footage is not more than 3mm).
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