Coating knowledge: see, smell and ask three ways to choose real coating

Core tip: Recently a famous paint brand fraud made a great noise As the most likely to cause potential pollution and indispensable materials in the process of home decoration, coating makes the owners feel very tangled when purchasing Especially in recent years, the reports of toxic coating making people ill continue, which makes the owners feel uneasy when purchasing coating Tian Yanming, senior engineer of the Institute of plastics and chemical engineering, Fujian Institute of product quality inspection, said that the owner didn't need to talk about the color change of the paint The paint contains certain substances that are harmful to health, but as long as it doesn't exceed the standard, it will not pose a threat to health Therefore, consumers may learn to detect and prevent poisons before purchasing Engineers know that paint is a good choice 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: Recently a famous paint brand fraud made a great noise As the most likely to cause potential pollution and indispensable materials in the process of home decoration, coating makes the owners feel very tangled when purchasing Especially in recent years, the reports of toxic coating making people ill continue, which makes the owners feel uneasy when purchasing coating Tian Yanming, senior engineer of the Institute of plastics and chemical engineering, Fujian Institute of product quality inspection, said that the owner didn't need to talk about the color change of the paint The paint contains certain substances harmful to the health, but as long as it doesn't exceed the standard, it will not pose a threat to the health Therefore, consumers may learn to detect and prevent poisons before purchasing A kind of Scientific understanding of paint composition coating refers to the general term of liquid or solid materials with protection, decoration or special performance that can be formed on the surface of objects With the increasing demand for coatings, people pay more and more attention to the danger of coatings So, how does the coating do harm to human body? The coating can be divided into water-based coating, solvent-based coating, solvent-free coating and powder coating Generally speaking, paint is actually solvent based paint VOC (volatile organic compounds) is an organic solvent volatilized during the drying process of paint Harmful substances in this organic solvent that have a serious impact on human health will stimulate the eyes and respiratory tract, cause skin allergy, and cause headache, sore throat, fatigue and other symptoms For a newly decorated house, people always have to ventilate before they dare to move in That is to say, they are afraid of the organic solvent that will not disperse for a long time In order to improve some properties of coatings, the heavy metal elements such as lead and chromium introduced in some coatings will damage the central nervous system of human body, lead to encephalopathy, anemia, renal function decline and toxic reproductive system, and affect the physical and intellectual development of infants Tian Yanming said that the standard "limit of harmful substances in interior wall coatings for interior decoration materials" (GB18582-2008) which is currently in use has made new provisions: first, the water-based wall putty has been added, and the limit value of harmful substances has been specified; second, the total control project of benzene, toluene ethylbenzene and xylene has been added, with the total content of ≤ 300mg / kg; Thirdly, the limited value of VOCs has been greatly reduced, and the VOC content of water-based wall coating is required to be ≤ 120g / L, and the VOC content of water-based wall putty is required to be ≤ 15g / kg Tian Yanming suggested that consumers should try their best to choose products with complete labels when purchasing coatings Generally, the commodity mark must have the basic contents such as inspection certificate, commodity name, factory name, factory site, product execution standard, production license, compulsory certification, production date, warranty period, specification, model, net content, warning sign, etc Shopping guide A kind of Check more information and pay attention to the prevention of counterfeiting When purchasing coatings, we should not only prevent poison, but also prevent counterfeiting Brand name and counterfeiting have always been a common phenomenon in the paint market In view of the prevention of counterfeiting of coatings, we should pay attention to the building materials of Yating Meiju Mr Wu, the relevant director of the Ministry, reminded the owners that they should first choose the paint brands with high reputation Before purchasing, consumers can know which paint brands in China are not only famous, but also professional and environmentally friendly through various channels High level of technology, good reputation and good service These channels mainly include the Internet, home furnishing journals, newspapers, TV, acquaintances, etc Second, consumers can also see, smell, ask and other ways to identify the true and false quality of paint Look: most dealers in regular channels use the method of open sales Ask the seller to open the paint bucket, high-quality paint, the surface is usually free of floating objects, if there is floating objects, it may be poor quality products or expired products, you need to purchase carefully Pick up the paint with a mixing rod If you can see the thick connection clearly, instead of water dripping, it is high-quality paint Check the quality test report of the product carefully, especially pay attention to VOC (organic volatilization) of the coating The smaller VOC, the more environmentally friendly Smell: smell the paint Due to the high content of VOC, formaldehyde and other harmful substances, most of the non environmental friendly coatings have pungent smell The smell is very fragrant The additives are chemical products It is difficult to guarantee environmental protection Therefore, such products need to be purchased with caution Q: ask the dealer about the number of times the paint is applied and the area to be applied per litre, not fooled by the unit price of the product The solid content of high-quality coating is 90% The coating with low price has low coating rate, high paint consumption, high price, poor effect and low cost performance 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,