There are several possibilities for the sag phenomenon of polyurethane floor paint. The paint thinner added during construction is too much, resulting in a low viscosity of the paint. If the thickness of a construction is too thick, sag may occur. When spraying polyurethane floor paint, if the pressure of the spray gun is too low, it will also sag (because the spray gun pressure is low, the epoxy floor paint is not well atomized, the atomized particles are too large, and the paint dosage is increased. Increased coating thickness).
The methods for dealing with the above defects and problems mainly include the following points.
According to the requirements of the floor paint coating product specification and the construction site and the construction method adopted, the viscosity of the paint suitable for construction is adjusted. The construction amount of the floor paint should be controlled once. The film should not be too thick or too thin. If it is too thick, it will cause sagging and waste of paint. Too thin will waste time and increase construction cost. Adjust the pressure of the spray gun to a suitable pressure range, and master the spray distance and other spraying techniques.
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