Paint knowledge | explain in detail the six causes of paint sagging and five measures to prevent it

Core tip: the phenomenon of paint dropping, sagging and uneven film on the base surface is called paint sagging The main reasons are as follows: (1) the paint is too thin, the adhesion is poor, and part of the paint flows under the action of gravity (2) Too thick painting or painting, too heavy paint film falling (3) The construction environment temperature is too low, and the paint film dries slowly (4) There are too many heavy pigments in the paint, and some of them are sagging (5) The surface of the base course of the object is uneven, the thickness of the paint film is uneven, and the drying speed is different The parts with too thick paint film are easy to fall (6) There are oil, water and other pollutants on the surface of the base course of the object, which are not compatible with the paint and affect the adhesion, resulting in the sagging of the paint film 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: paint in the base surface drops, sagging, paint film uneven phenomenon called paint sagging The main reasons are as follows: (1) the paint is too thin, the adhesion is poor, and part of the paint flows under the action of gravity (2) Too thick painting or painting, too heavy paint film falling (3) The construction environment temperature is too low, and the paint film dries slowly (4) There are too many heavy pigments in the paint, and some of them are sagging (5) The surface of the base course of the object is uneven, the thickness of the paint film is uneven, and the drying speed is different The parts with too thick paint film are easy to fall (6) There are oil, water and other pollutants on the surface of the base course of the object which are not compatible with the paint, which will affect the adhesion and cause the paint film to sag Then what measures can be taken to prevent the paint from falling? In the construction, the following measures can be taken: 1 Select the paint with good quality and the diluent with proper volatilization speed, and control the mixing amount 2 The surface of the object shall be treated flat and smooth, and the surface oil, water and other dirt shall be removed 3 The construction environment temperature shall meet the standard requirements of paint type, such as varnish should be 20-27 degrees, and be painted within 3 hours 4 The painting shall be carried out in accordance with the process procedures: first, vertical, horizontal, oblique, and finally, the paint shall be leveled vertically to make the thickness of the paint film uniform 5 The moving speed of the spray gun and the distance from the object shall be controlled evenly The spray shall be carried out according to the specified process procedure, with vertical spray, circular spray and horizontal spray first, so as to form a uniform film with the same thickness 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,