The gloss of the color coating roll is poor, such as the gloss or color spots are not reached after the coating is cured, or after the coating is cured for several hours, the gloss of the color coating roll is reduced and the gloss is reduced after use. What are the reasons for these phenomena? Let's learn:Cause: cause of paint formulation. The amount of pigment, filler and solvent in the coating is too much, the size is insufficient or the dust is too much. The surface language of the substrate is rough, including oil, water, wax, etc., and the coating is not fully cured. The paint is not stirred completely before it is put on the machine, and the solid of the paint is deposited at the bottom of the barrel, so that the paint in the working barrel is less during the construction. Too much diluent is added to the coating, which weakens the function of the light coating. The surface coating is too thin and the roller is too high or too low at room temperature. The setting of curing furnace temperature is too high, the hot air circulation in the furnace is not complete, and the coating is overheated, which causes the aging of eyes and the decrease of luster.