What should we pay attention to in the construction of epoxy flooring? This problem has been plagued by many workers. The following edition gives you a brief introduction to the construction of epoxy self-leveling flooring through a brief article. In the construction of epoxy self-leveling floor, high pressure airless spraying can achieve better appearance than rolling coating. Higher gloss, higher wear resistance (airless spray floor paint hardly adds diluent). When spraying, the spray gun should be perpendicular to the surface of the workpiece to be sprayed, 30-40 cm away from the surface. The spray gun should move evenly at an appropriate rate and parallel to the floor surface to avoid accumulation and uneven coating. The spray distance and vertical angle between the spray gun and the object surface are controlled by the body. The movement of the spray gun should also be assisted by the body to move the arm, not the wrist, but the wrist should be flexible. 环氧自流平地坪每一道喷漆作业就在前一道喷漆作业上搭接约20~30%，以便获得完整、均匀的涂层。喷拐角时，喷枪可对准拐角的中心，以确保两侧能得到均匀的喷涂。
Each spraying operation of epoxy self-leveling floor overlaps about 20-30% of the previous spraying operation in order to obtain a complete and uniform coating. When spraying corners, the spray gun can aim at the center of the corners to ensure uniform spraying on both sides.
When spraying, the spray gun trigger should be opened when the spray gun moves, and the spray gun trigger should also be closed when the spray gun moves, so as to avoid excessive coating accumulation on the surface.
The bigger the aperture is, the thicker the film is.
With the same nozzle aperture, the bigger the width of the nozzle is, the thinner the film is.
Notices for High Pressure Airless Spraying
(1) Spraying pressure and flow rate
For a certain type of airless spraying equipment, the relationship between spraying pressure and flow rate is that the flow rate increases and the spraying pressure decreases when the viscosity of the coatings is constant and the input compressed air pressure is constant. When the pressure of compressed air is increased, the spraying pressure and flow rate will increase accordingly.
(2) Coating Viscosity and Spraying Pressure
Different types of coatings have different viscosities, especially high solid coatings, such as solvent-free high solid content epoxy self-leveling floor. The higher the viscosity is, the higher the spraying pressure is. The pressure ratio of low viscous coatings is 23:1 and 32:1, while that of high viscous coatings is about 45:1. However, the pressure of spraying can not be increased blindly. When spraying high-viscosity coatings, the replacement of large-caliber nozzles should also be considered.
(3) Selection of nozzles
Before high pressure airless spraying, nozzles with certain aperture and shape should be selected according to the coating and spraying object used. The size of the nozzle determines the size of the flow, and the shape of the nozzle determines the amplitude of the spray. For coatings with higher degree and larger construction area, nozzles with larger aperture should be selected.
Above is a brief introduction to the matters needing attention in the construction process of epoxy self-leveling floor. If you have any questions about epoxy self-leveling floor, you can also call us.
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