Coating knowledge: Xi'an Quality Supervision Bureau released the spot check results of 4 types of decoration materials

Core tip: it is the peak season of decoration at present On the 13th, Xi'an Quality Supervision Bureau held a press conference and announced the recent spot check results of Xi'an product quality supervision and Inspection Institute on four types of decoration building materials in Xi'an market The problem of formaldehyde exceeding standard of wood-based panel is prominent, and the qualified rate is only 67.4% Among the four types of building materials, ceramic tiles have the highest qualification rate, 94% The formaldehyde qualification rate of wood-based panel is 67.4% The random inspection results are as follows: five wood-based panel production enterprises and 26 sales enterprises in our city are selected, 43 batches are selected, 29 batches are qualified, the qualification rate is 67.4% Formaldehyde content is the main safety index of all kinds of artificial board This project is unqualified Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder 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Among the four types of building materials, ceramic tiles have the highest qualification rate, 94% The formaldehyde qualification rate of wood-based panel is 67.4% The random inspection results are as follows: five wood-based panel production enterprises and 26 sales enterprises in our city are selected, 43 batches are selected, 29 batches are qualified, the qualification rate is 67.4% Formaldehyde content is the main safety index of all kinds of artificial board If this project is unqualified, the indoor air quality will be seriously deteriorated after the home decoration Cause: the main reason of formaldehyde exceeding the standard is that the board contains poor adhesive Formaldehyde is a kind of original plasma poison, which can combine with protein After inhalation of high concentration formaldehyde, it will cause serious irritation and edema of respiratory tract, eye tingling, headache, and asthma Reminder: Xi'an Quality Supervision Bureau reminds consumers to buy plates in the regular plate city to see if there is a pungent taste, and if the eyes and throat are uncomfortable The quality inspection report is required The national formaldehyde emission limit value is divided into E1 and E2 levels E1 plate can be directly used indoors, and E2 plate can only be used indoors after treatment Therefore, it is suggested that consumers should choose E1 grade wood-based panel The qualified rate of latex paint is less than 70% in the spot check results: 25 batches are sampled in this time, of which 17 batches are qualified, and the qualified rate is 68% The more famous zijinhua paint (the manufacturer is zijinhua paint (Chengdu) Co., Ltd.) is also on the list Cause: the main unqualified items are unqualified washability and contrast rate, which means that before and after the application of emulsion paint, the phenomenon of exposed bottom, peeling and falling off in case of water will occur Reminder: the qualified emulsion paint shall be in fine and even state, without settlement, caking, floating water, mildew, odor and other phenomena Do not purchase the spot check results for serious stratification of waterproof coating: 30 batches were sampled, with a qualified rate of 73.3%, involving 26 production and sales enterprises The main unqualified items are elongation at break and solid content Cause: the unqualified elongation at break refers to that the waterproof coating is not flexible enough in use, easy to crack or even break, thus losing the waterproof performance Unqualified solid content, that is, too high moisture content, will affect the strength index and drying time, causing inconvenience to construction Caution: when consumers purchase waterproof coating, if the liquid has serious precipitation stratification, do not buy The highest qualified rate of ceramic tiles exceeds 90% The results show that there are 50 batches and 47 batches qualified in this spot check One production enterprise and 43 sales enterprises are involved in the spot check The main unqualified items are failure strength and water absorption Cause: the failure strength is unqualified, and the ceramic brick is easy to break or deform in use The water absorption rate is unqualified, and the water absorbed in the gap will expand due to the temperature change in use, which is easy to produce cracks or even cracks It will also happen that the dirt in the water will be inhaled and cannot be eliminated Reminder: when choosing ceramic tiles, you can tap and listen to the sound, which clearly shows that the quality is relatively good, and the quality of dull sound or noise is relatively poor 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,