General knowledge of coating: nursing skills and precautions for automobile coating

Core tips: 1 Color matching skills of automotive touch up paint the color matching basis of automotive touch up paint is to make standard card according to "spectral color", and to find the color matching from the color card, or to match the color according to the standard coating sample provided by the user The specific steps are as follows: (1) To distinguish colors accurately, first color them according to the color plate, accurately distinguish their "hue", "lightness" and "purity" under the condition of standard light source, and then determine the main color, background color and other necessary color formation and Adjustment & L Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: 1 Color matching skills of automotive touch up paint the color matching basis of automotive touch up paint is to make a standard card according to the "spectral color", and to find the matching color from the color card, or according to the standard coating sample provided by the user, the specific steps are as follows: (1) To accurately identify the color, first color the color according to the color plate, accurately identify its "hue", "lightness" and "purity" under the standard light source conditions, and then determine the main color, background color and other necessary color and adjust the "hue", "lightness" and "purity" primary color materials (2) In order to correctly select the color materials, ammonium should be matched with the cusp type, variety of the color coating, the principle of matching diluent and auxiliary materials, and the primary color materials with excellent performance and economic performance should be used (3) First adjust the small sample and then adjust a large number of samples In the absence of color matching equipment, we should adjust the small sample first to obtain the accuracy of color matching, which lays a foundation for a large number of modulation to reduce waste (4) The mixing steps and methods shall be strictly based on the principle of "first main, then secondary, from shallow to deep", and the mixing shall be fully stirred and evenly dissolved (5) The addition of auxiliary materials shall be in strict accordance with the proportion of the corresponding varieties, and the appropriate amount shall be added together with the intermodulation at the right time In particular, it should be noted that the toner is wet and the sample color is solid, so the color after the color tone of the paint should be slightly lighter than the sample structure, not similar, not too deep It should be slightly lighter than the primary color, so that when the paint is dry, it will be the same board color, otherwise it will be too deep 2 The cause of putty mark on the paint surface and its treatment skill after filling the two-component paint surface with atomic ash (putty), putty mark sometimes appears after spraying the finish paint The main reasons are as follows: (1) the quality of atomic ash is poor (2) Use a two-component primer of poor quality (3) The proportion of atomic ash and curing agent is not correct (4) The two-component paint fills the atomic ash before it is completely dry In order to avoid putty seal caused by the above reasons, the following points should be paid attention to in advance: (1) high quality atomic ash (putty) must be used to avoid defects such as putty seal generation and light loss (2) Use high-quality two-component intermediate primer and spray intermediate primer with appropriate number of layers (3 layers) (3) It is necessary to license the formula provided by the manufacturer, pay attention to the proportion of atomic ash (putty) and curing agent, and make accurate preparation (4) If the new two-component paint film needs to be filled, it must be heated and dried before filling the atomic ash If putty mark appears on the paint surface, the following measures can be taken: (1) polish with P1500 sandpaper, and then repair with waxing process (2) In case of serious situation, repaint after polishing 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,