Paint knowledge entry series environmental protection articles
March 21 19:07:10, 2024
The paint is good or bad, the key is to look at the environment. Nowadays, the hottest thing in the paint market is environmental protection. Consumers are most concerned about environmental protection when they buy paint; they often hear about paint and paint on people; zero-VOC, nano-coating and other concepts are not allowed. Little confused. The hype of the concept of environmental protection is sometimes a trap. If you choose to purchase paints, the most concerned may be environmental protection. The reporter visited a number of markets and found that some consumers are caught in a misunderstanding of environmental protection, thinking that as long as the environmental protection indicators are high It is good, but is environmental protection really the only choice when you buy paint? In this regard, China National Coatings Industry Association Secretary-General Yue Wang-kun believes that as a product directly into the family, the national standard is a threshold, and products that meet this standard are harmless to the human body and are environmentally friendly. Do not advocate over-emphasis on the speculation of various environmental indicators, if the coating really reaches zero VOC (volatile organic compounds), the physical properties of the coating will decline. For the various gimmicks on the market for paint sales, people in the industry believe that consumers should not be partial, and when purchasing paint, the physical properties of environmental protection and coatings need to be concerned. Conformity with the standard ie environmental protection "If you use the most original flour and fire alkali paint walls, are you willing to do this?" Huang Tianyuan, Deputy Secretary-General of the Coatings Industry Association, has long been concerned about the quality of paints. He asked too much about emphasizing the environmental performance of hype paints: " There is no organic matter here, it is the most environmentally friendly. But now someone is doing so?†What is an environmentally friendly paint? Huang Tianyuan explained: “As a chemical, paint itself contains various organic substances. It has substances that are harmful to humans. If it is within the limits set by the state, we think it is qualified for environmental protection, and if it exceeds the limit, it is deemed to be not environmentally friendly. It is understood that the harmful substances contained in the coatings used in the living room are usually VOC, free formaldehyde and heavy metals, benzene series and TDI. Regular paint products will have test reports, consumers can identify the content of harmful substances according to the test report. Indicators are sometimes "traps." "Natural" and "environmental protection" are the flags that paint products often play. The amount of VOC content is a unique secret for some companies to attract customers. In the interior latex paint standard, the VOC content per litre limit is no more than 200 grams. And now many products simply hit the banner of zero VOC. Is zero VOC really realizable? According to Zhang Ming, general manager of Fenlin Coatings, the current development trend of the paint industry is indeed zero-VOC, odorless health paint. Due to factors such as technical difficulties, there are virtually no zero-VOC environmental protection coatings on the market. Taking latex paint as an example, additives such as coalescents and antifreeze agents are the main sources of VOCs in paints. Some paints will reduce VOCs by reducing their amounts, but their performance will be reduced. As for the relationship between the environmental performance and physical properties of coatings, the reporter specifically sought verification of the National Building Materials Testing Center, which is responsible for paint testing. Tang Yueqing, a senior engineer at the center, believes that if blindly pursuing low environmental protection indicators, after the paint is produced, it is likely that powder falling, foaming, cracking, and low scrub resistance will occur. Therefore, in the production of coatings, environmental protection, performance and price are a comprehensive consideration. Moreover, due to the differences in formulas, processes, and raw materials produced by various companies, it is unrealistic to achieve perfection from the perspective of cost. This requires a balance between environmental protection, performance and price. Do not ignore the basic function of how to choose paint, soup engineers, consumers in addition to see the environmental performance of paint, but also should pay attention to physical properties. Take a look at paint test reports, such as the basic functions of ratio, alkali resistance, and construction, which are important to consumers. The contrast ratio is the hiding power of the paint; the alkali resistance is the anti-alkali ability of the paint. If the alkali resistance of the paint is not strong, the paint can easily yellow after a period of time. Consumers can choose according to their actual situation. Publicity gimmicks need to pay attention to fact, in the paint market, in addition to the speculation of VOC concept, there are a lot of gimmicks need to pay attention to consumers, common such as resistance to scrub times and crack prevention. According to an industry source who declined to be named, these features are actually deliberately exaggerated. As far as scrubbing times are concerned, some product promotions can reach more than 20,000 times. In terms of normal paint use, one day scrubbing the wall with a damp cloth is only 3,650 times a decade. After ten years, consumers often choose to repaint the wall, which is not practical. The function of crack prevention and coating basic micro-cracks is two things, not the wall cracking, the paint will not crack. There is indeed a thick film of elastic anti-crack latex paint on the market, but it is basically difficult to use in home decoration, and the cost is high. The market calls for third parties to face the gimmick, and the views of various parties are not consistent. Industry associations do not want too much hype. As a company, it expressed another view that Master Paint did not speculate on various environmental protection indicators. However, the company's Beijing manager, Zhang Hao, believes that as normal marketing, companies can find various selling points. This is understandable. After all, they are competing in the market. Under these conditions, these selling points are needed to attract customers. The person in charge of Nippon Co., Ltd. believes that now consumers are becoming more sensible and they will not be confused by this speculation because the market is the best touchstone. In addition, for consumers to buy coatings sometimes have no way to adapt to the situation, Tang Yueqing believes that the market needs an objective and neutral third-party agencies to ensure that consumers check, provide objective data reports, so as to avoid the consumer to buy the trouble.
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