As the summer season approaches, new homes enter the peak period of renovation. The neighbours who are busy decorating their new homes have noticed that when purchasing home improvement materials such as fire doors, wood lacquers, and waterproof coatings, they must look for brands, construction specifications, and approval reports. On May 30, the Guangzhou Municipal Quality Supervision Bureau announced the results of spot checks on the quality of related products. The results show that some batches of products do not meet the requirements.
Text / reporter Du Meng
Wood lacquer: don't buy packaging damage
The Guangzhou Quality Supervision Bureau stated that three batches of products produced by three companies did not meet the standard requirements. On the item of halogenated hydrocarbon content, one batch of products was unqualified in this spot check. Halogenated hydrocarbons are excellent organic solvents in solvent-based wood coatings. They are inexpensive and can improve the performance of the products. However, excessive halogenated hydrocarbons can cause harm to the human body. After absorption through the skin, they will invade the nerve center or act on Internal organs, causing poisoning.
In the project of yellowing resistance, one batch of products was unqualified in this spot check. Yellowing resistance is a characterization of the color retention performance of the paint film during use. Generally, the color difference before and after exposure to UV light or the color difference is used to quantitatively characterize the degree of discoloration. The main reason for the unsatisfactory yellowing resistance project is that the manufacturer does not use the anti-yellowing resin or curing agent effectively, or the resin and color material used have low stability.
The Municipal Quality Supervision Bureau reminds consumers that when purchasing wood lacquer, they must recognize the label on the product packaging, especially the name of the factory, the site, the implementation standard, the product type or quality level, the date of manufacture, the expiration date and the certification mark. Do not buy products that are damaged or swelled.
If the package is opened and found to have obvious delamination, sinking and agglomeration, the paint will not appear after being stirred. At the same time, be sure to purchase the product with the construction instructions.
Secondly, consumers should also pay attention to: wood lacquer as a chemical, itself contains a variety of volatile organic compounds and substances harmful to humans, if within the limits set by the state, it can be considered environmentally qualified, can be used safely, If it is overweight, it may endanger human health.
Aluminum alloy profile products: try to choose a big brand
The Municipal Quality Supervision Bureau randomly checked 4 batches of products produced by 4 companies. After inspection, all products under inspection met the standard requirements.
The Municipal Quality Supervision Bureau reminds consumers that when purchasing such products, they should try to choose well-known brands in the large construction market. In addition, attention should be paid to the maintenance of the anodized film of aluminum alloy building profiles: when the building profiles are used for a long time, the surface of the oxide film must be cleaned on time to prolong the service life. The periodic cleaning period of the oxide film is generally half a year, which is to clean the surface dirt and not damage the anodized film.
Adhesive: the gel should be fine without delamination
The Municipal Quality Supervision Bureau randomly checked 23 batches of products produced by 22 companies. After inspection, 3 batches of products produced by 3 companies did not meet the standard requirements. In the total volatile organic matter project, one batch of products was unqualified in this spot check.
The Municipal Quality Supervision Bureau reminds: consumers should try to choose products produced by well-known brand enterprises. When purchasing and using adhesives, first pay attention to the instructions for use of the product, to understand its use and scope of application. Secondly, the adhesive used for interior decoration and decoration must be marked with the national mandatory standard GB 18583 and its hazardous substance name and limit. It is not advisable to use goods with rough outer packaging, skewed container shape, and instructions for printing. Before buying, you should open the bucket to view, good adhesive products, the gel should be fine, no delamination, no precipitation, uniform color and bright, moderate viscosity, white latex products should have no pungent odor when opening the container.
Waterproof coating: see if the product identification is complete
The Municipal Quality Supervision Bureau conducted a random inspection of 14 batches of products produced by 14 companies. After inspection, 3 batches of products produced by 3 companies did not meet the standard requirements. There are 2 batches of products that are not qualified on the marking items. The signs do not meet the standard requirements and are easy to mislead users. In the tensile strength project, one batch of products failed in this sampling.
The Municipal Quality Supervision Bureau reminds consumers to pay attention to the product identification on the product packaging when purchasing such products, and pay attention to whether the information such as the name of the factory, the site, the implementation standard, the date of manufacture, the expiration date, etc. are complete, and the package is damaged or swollen. buy. The coating products have delamination, agglomeration and cementation. They are still uneven after being stirred and cannot be used.
Fire doors: qualified products will be heavy
The Municipal Quality Supervision Bureau has randomly selected 4 batches of products produced by 4 companies. After inspection, all products inspected meet the standard requirements.
The Municipal Quality Supervision Bureau reminds: Fire doors are products that are compulsory type approval by the Ministry of Public Security. Each type of fire door corresponds to a type approval report. Only fire doors with type approval reports can be produced and sold. . In addition, consumers can identify the quality of the product by estimating the weight and listening to the sound. A qualified fire door has a relatively heavy weight; tapping the fire door leaf with a finger, if a crisp "beep" sound is issued, it means that the filler is tight, the steel plate used is thick, and the heat insulation and stability are guaranteed.
Wood lacquer: If it contains an excessive amount of halogenated hydrocarbons, it will invade the nerve center or act on the internal organs after it is absorbed through the skin, causing poisoning.
Aluminum alloy profiles: The color of the same aluminum alloy profile should be consistent. If the color difference is obvious, or the oxide film can be wiped off at will, it is not suitable for purchase.
Adhesive: The total volatile organic compounds exceed the standard, which will increase the load of organic pollutants. In severe cases, it will cause headaches, sore throat and other symptoms, endangering human health.
Waterproof coating: Tensile strength is the most basic physical property item of waterproof coating products, and its indicators can directly reflect the performance of the product.
Fire door: The difference from the security door is whether the filler in the door panel is a fireproof material. It is recommended that the general door can be used for security doors, and the bedroom can use fire doors.
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