Paint classification: mottling of automobile paint film

Core tip: the mottling of automobile paint film refers to the phenomenon that the color of paint film is uneven, and the mottling, stripe and hue are disordered, especially on the surface of metallic flash paint There are several reasons for the phenomenon of hairline pattern of automobile paint film: ① The film thickness is uneven and too wet, which makes the distribution and directional arrangement of aluminum powder and pearlite powder uneven and blooming; ② The viscosity of coating spraying is too large, the film is too wet, the atomization pressure is too low, the final coating is thick, the fan is too narrow, and the spraying coverage is uneven; ③ Too much paint flow, thick and wet paint film; ④ Too much slow drying solvent, too wet paint film; ⑤ Primer to varnish Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: the mottling of automobile paint film refers to the phenomenon that the paint film color is uneven, and the mottling, stripe and color phase are disordered, especially on the surface of metallic flash paint There are several reasons for the pattern of automobile paint film: ① the film thickness is uneven and too wet, which makes the distribution and directional arrangement of aluminum powder and pearlite powder uneven and blooming; ② the paint spraying viscosity is too large, the film is too wet, the atomization pressure is too low, the end of the period is thick, the fan is too narrow, and the spraying coverage is uneven; ③ the paint flow is too large, and the film is thick and wet; ④ There are too many slow drying solvents and the paint film is too wet; ⑤ the flash drying time from the base color paint to the varnish is too short; ⑥ the temperature of the spray room or the body is low; ⑦ the edge or local sagging Solutions: ① increase the atomization pressure of the air spray gun, increase the rotation speed of the esta rotating cup, and reduce the amount of paint; ② reduce the amount of forming air, and expand the range of the sector; ③ reduce the viscosity of the paint construction, and reduce the slow drying solvent; ④ increase the temperature of the spray room and the body, and reduce the thickness of the edge or part of the film, that is to say, improve the drying degree of the paint film; ⑤ To improve the film thickness uniformity and aluminum powder arrangement, and to prevent the defects such as flower and stripe caused by the re dissolution of the base color paint Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,