Coating knowledge: the main cause of common problems of interior wall coating?

Core tip: interior wall coating is very important for people's life and health, but many times, after finishing decoration for a period of time, there will be some common problems such as cracking, falling off, blooming and so on, so what are the main causes? Only when the causes are found can the best measures be found to solve them Main reason 1: the veneer is flowery and the color is uneven 1 The quality reason of coating itself If the paint itself has floating color This is due to the difference of pigment density used in the coating, which causes the pigment particles with small density floating on the top, and the particles with large density gather on the bottom, resulting in color separation Although fully mixed during construction, the Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: interior wall paint is very important for people's life and health, but many times after finishing decoration for a period of time, there will be some common problems such as cracking, falling off, blooming and so on, so what are the main causes? Only when the causes are found can the best measures be found to solve them Main reason 1: the veneer is flowery and the color is uneven 1 The quality reason of coating itself If the paint itself has floating color This is due to the difference of pigment density used in the coating, which causes the pigment particles with small density floating on the top, and the particles with large density gather on the bottom, resulting in color separation Although fully stirred during construction, the coating is easy to produce color differences in the process of painting and drying, and the pigment in the coating is not well dispersed or uneven, which may also cause color blooming Because of the poor dispersion of pigments or the uneven dispersion of several pigments, the stripe color difference is easy to be produced in the direction of brush and roller during the brush or roller floating construction 2 Improper construction will result in uneven painting and unskilled construction technology will also result in different shades The proportion of pigment and base material is not appropriate, too much color and filler, too little resin composition, and uneven color development The base is too alkaline, and the use of pigments that are not alkali resistant in the filler is easy to cause uneven color Main reason 2: peeling, cracking and falling off of coating surface 1, the falling film itself is not good, such as latex paint construction temperature is too low, the emulsion itself can not form continuous coating caused cracking, water and moisture will fall off 2 In the paint components, the content of pigment and filler is too high, and the content of resin is too low, resulting in poor adhesion of the film 3 The base course is loose with dust, oil and other impurities, and the coating film does not adhere well to the base course 4 When leveling the base course, the putty used is of low strength and easy to be powdered Especially in places with high humidity such as kitchen and toilet, the cellulose white putty is of low strength and poor water resistance It is easy to expand when encountering water, causing foaming and falling off 5 The base course is too smooth, which is easy to cause poor adhesion of the film 6 Improper construction, the first coating is not completely dry, i.e the second coating is applied Due to the different drying speed inside and outside, the film cracks In addition, the interior wall coating needs to choose environmental protection and health type In modern life, many people suffer from sub-health problems, dizziness and lack of energy If the interior wall coating brand selection is not good, it may cause formaldehyde and other harmful gas pollution, seriously endangering family members and their own health 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,