Paint purchase | all strategies for green building materials

Core tip: Recently, Beijing Municipal Bureau of industry and commerce, together with the national building materials testing center, has carried out quality inspection on 11 categories of indoor decoration commodities sold in 18 building materials markets, shopping malls and supermarkets in Beijing, including waterproof coatings, adhesives, wood-based panels, wood floors, toilets, water nozzles, latex paint, wood paint, etc In the test, 84 samples were unqualified Among them, the quality problems of some waterproof materials are "intolerable"; 38 samples of the single water nozzle test are unqualified So, how to choose green building materials? Flexible waterproof materials are often used in concealed decoration projects 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: Recently, Beijing Municipal Bureau of industry and commerce, together with the national building materials testing center, has carried out quality inspection on 11 kinds of indoor decoration and repair commodities, including waterproof coating, adhesive, artificial board, wood floor, toilet, water nozzle, latex paint and wood paint, sold in 18 building materials markets, shopping malls and supermarkets in Beijing In the test, 84 samples were unqualified Among them, the quality problems of some waterproof materials are "intolerable"; 38 samples of the single water nozzle test are unqualified So, how to choose green building materials? Flexible waterproof materials are often used in concealed decoration projects It is difficult for consumers to see the quality problems directly Because of this, waterproof materials are often hidden dangers in decoration Experts said that the purchase of waterproof materials should be from the tensile strength, elongation at break, impermeability and other aspects of comprehensive inspection For the waterproof roll, because of the tight connection with the base in application, the expansion, cracking and deformation of the base directly affect or restrict the use of the roll Therefore, the waterproof roll should have a strong adaptability to the base Experts said that when purchasing PVC waterproof roll, consumers can gently pull with their hands, and feel that the higher the toughness of the roll, the higher the tensile strength, the greater the elongation, and the better the adaptability to the base In addition, the reporter reminded consumers that if you buy waterproof coating, you must pay attention to its environmental performance In the production of waterproof coatings, adhesives and colorants are often added The reporter sees on the market, many building materials City have water-based building waterproof coating, its environmental protection performance is better, the consumer might as well try Environmental friendly adhesive is a kind of building material necessary for home decoration Many building materials also contain adhesive, such as board, paint, coating, etc The quality of adhesives is directly related to the health of the living environment However, in this test, a total of 5 adhesives are unqualified, and the main quality problems are free formaldehyde and benzene The reporter learned from the national building materials testing center that the free formaldehyde content of the adhesive should be less than or equal to 1g / kg, and the benzene content should be less than or equal to 5g / kg In a recent test by the Administration for Industry and commerce, the benzene content of 2kg / barrel 100 year old adhesive produced by a company in Beijing was 75g / kg, far exceeding the standard value Here, the reporter reminds consumers that when buying adhesives, they can use the method of "nose smell" If the adhesive emits a strong irritant smell, the content of harmful substances mostly exceeds the standard Check the contrast rate of latex paint to buy latex paint Consumers know that they should pay attention to its environmental protection performance, but may ignore the contrast rate As we all know, the contrast rate is directly related to the covering ability of latex paint, while the covering ability is directly linked to the beautification of the wall It is understood that the safety performance of the sample is basically qualified, but the contrast rate is poor Experts said that the contrast rate of latex paint should not be less than 0.90, otherwise, its painting function will be greatly reduced In addition, good quality emulsion paint can also delay the aging of the wall, such as the subtle cracks, mildew spots and so on Experts explained that generally speaking, the resistance of latex paint to brushing should reach 1000 times However, some of the tests were less than 20 The reporter learned in the market that few consumers pay attention to the scrub resistance of latex paint In fact, when choosing latex paint, we should pay attention to the environmental protection performance and check the contrast rate and scrub resistance index of latex paint Wood paint is one of the invisible killers in indoor environment The paint often contains excessive benzene and lead Benzene has been identified as a carcinogen by the World Health Organization; lead may affect the nervous, hematopoietic, digestive and other systems of the human body The standard value of soluble lead in wood paint shall not exceed 90mg / kg, and the benzene content shall not exceed 0.5% In this regard, experts remind consumers that many miscellaneous brand paints in the market falsify Chinese environmental protection signs, and consumers are often confused by them Therefore, in the purchase must recognize the big brand, to the big building materials market purchase In addition, the reporter suggested that consumers should use less solvent paint, the best choice of well-known brands of water-based paint According to the formaldehyde emission of wood-based panel, the harmful substances in the panel are mainly formaldehyde The formaldehyde in the panel exceeds the standard, which may cause smell abnormality, lung function abnormality, liver function abnormality and immune function abnormality, etc long-term exposure to low dose formaldehyde also has great harm to human health In this test, the quality problems of wood-based panel are all caused by formaldehyde According to GB18580-2001 formaldehyde emission limit of wood based panel and its products for interior decoration materials, the product "shall be marked with the mark of formaldehyde emission limit of the product" According to the standard, those with limited signs of "E0" and "E1" can be directly used indoors; those with signs of "E2" can only be used indoors after finishing 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,