Common knowledge of paint: apparent judgment method of interior wall latex paint quality

Core tip: Although diatom mud and shell powder coating are very popular and beautiful, there are still many home decoration consumers who choose interior wall latex paint The following small series will introduce the apparent judgment method of interior wall latex paint quality for you, and you can buy it at ease when you know it To determine the quality of interior wall emulsion paint, the accurate and reliable method is to test the performance according to the national standard However, on the one hand, it is not the same level of significance to make a simple judgment on the quality of emulsion paint according to the appearance of the product; on the other hand, sometimes 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: Although diatom mud and shell powder paint are very popular and beautiful, there are still many home decoration consumers who choose interior wall latex paint The following small series will introduce the apparent judgment method of interior wall latex paint quality for you, and you can buy it at ease after you know it To determine the quality of interior wall emulsion paint, the accurate and reliable method is to test the performance according to the national standard However, on the one hand, it is said that the quality of emulsion paint is simply judged according to the product appearance of emulsion paint, which is not of the same significance as testing according to the standard; on the other hand, even for the qualified emulsion paint tested according to the standard, there are still problems in the coating during or after construction In fact, the interior wall latex paint is located indoors, and the requirements for the physical and mechanical properties of the coating are not as strict as the exterior wall latex paint The more practical performance indicators are the constructability of the coating, the decorative effect of the coating, and the environmental protection of the coating Because of this, there is no gap between domestic latex paint and some imported high-quality latex paint in the physical and mechanical properties of the film, but there is a big gap in the construction performance (especially spraying construction) and decoration effect Therefore, this paper introduces some methods of intuitively judging the quality of emulsion paint according to the construction experience, so that consumers can judge the quality of emulsion paint and choose to use high-quality emulsion paint when there is no testing condition (in addition to a high testing cost, a long testing cycle is also required according to the standard testing) 1 Judge according to "can opening effect" "Can opening effect" refers to the intuitive feeling of opening the lid of the original packaging latex paint in the sealed state After opening the lid of the packaging of the latex paint with good quality, it gives an excellent impression, such as delicate appearance, full feeling, shiny surface oil (similar to the feeling of solvent based paint), high and even viscosity, light and soft color, etc For the emulsion paint with poor quality, when the packaging cover is opened, there is often a very obvious layer, the surface is a layer of clear water like liquid, sometimes the liquid surface is also floating color layer In addition, it can be found that the fluidity of high-quality emulsion paint is good through agitation Insert the stick into the paint and lift the stick, and the emulsion paint dipped on the stick will flow down rapidly, forming a fine and long flow beam; on the contrary, the fluidity of the emulsion paint with poor quality after agitation is poor After mixing the layered state of the emulsion paint evenly, when inserting the stick into the emulsion roll and lifting the stick, the emulsion paint dipped on the stick flows down slowly, and the emulsion paint drops from the stick in groups and blocks, but can not form a flow beam At the same time, the emulsion paint looks rough, dry, and oil-free 2 The construction latex paint can be applied from the paint state to the film with use function only through the construction procedure The constructability of emulsion paint refers to the difficulty of coating High quality latex paint has good workability For example, when the paint needs to be diluted, it is easy to mix with water; when spraying, the paint has good atomization effect, no splashing or little splashing; when roller coating, it feels smooth and smooth, no sticky feeling; the covering power of emulsion paint is strong, and the construction area of unit quality emulsion paint is large, etc The emulsion paint with poor quality does not have these construction effects On the contrary, the roller coating is often heavy and sticky, the atomization performance is not good when spraying, and sometimes it is difficult to mix evenly It is in view of the poor workability of some latex paints that the coating workers invented the construction method of combining roller coating and scraping coating 3 Coating effect the high-quality emulsion paint has good leveling, no brush marks or basically no brush marks, and the coating is flat, smooth, full, light and elegant in color, soft and easy to remove stains The poor decorative effect of poor quality latex paint is a common disease Such latex paint is qualified according to the national standard GB/T 9756-2001 "synthetic resin emulsion interior wall coating" However, the film is rough, brush marks are obvious, even brush joints, not to mention the plump texture At present, some imported brand-name latex paint in foreign countries, to varying degrees or intensively reflect the advantages of the above three aspects of paint appearance, construction performance and coating effect; while some domestic latex paint, especially some small workshops, only produce the latex paint according to the formula provided by the raw material seller, may focus on the disadvantages of the above three aspects of inferior latex paint When consumers choose latex paint, it is better to buy it from regular manufacturers 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,