There are all kinds of coating defects. In order to facilitate everyone's memory, analysis and solution, it is necessary for us to classify them. The classification of coating defects is just like the classification of paint. There are many classification methods. The following list is helpful for us. Several classification methods for analysis:
① Classify according to the intuitive superficial phenomenon of the malpractice. This method is to directly summarize and describe the surface phenomena presented by the ills into words, and use auxiliary pictures to illustrate them, such as delamination, cracking, peeling, blistering, discoloration, etc. (related instruments: Colorimeter)
② Classify according to the coating realization process, this method is to classify the coating realization process into common independent processes (such as production, storage, construction, application, etc.), and then classify the disadvantages generated into these independent processes, for example Problems in production, problems in storage, problems in construction, problems in durability, etc.
③ Classify according to the type of paint, this method is to classify the common disadvantages of different paint products into the types, such as the disadvantages of wood paint, interior wall latex paint, exterior latex paint, car paint, etc.
④Categorized according to the direct causes of the defects, usually the four major direct causes of the defects of the coating film are product problems, substrate problems, construction problems and environmental problems, and all the problems can basically be classified into them.
Of course, coating defects can also be classified in other ways, such as classification according to different construction techniques. However, under normal circumstances, the comprehensive application of the above four classification methods can analyze the problems and find the corresponding solutions. causes and finding ways to prevent and resolve them. This chapter also mainly applies these four classification methods to deal with the ills.
