Building Materials Information Guide: Strictly Control the Basic Quality of Building Materials:
● The wear resistance and formaldehyde emission of laminate flooring remain key
Laminate flooring has been refreshed for a few years and has become a familiar building material to people. However, when selecting, it is still necessary to focus on the basic quality beneath the glossy surface.
After being processed under high pressure, laminate flooring overcomes the weakness of solid wood flooring which shrinks in dry conditions and swells in wet conditions. It features rich patterns and colors, simple maintenance, and its high glossiness and wear resistance are its biggest characteristics. However, some laminate floors do not meet the basic national standards, not only having a short service life but also being a source of pollution at home.
According to national quality standards, the formaldehyde emission of qualified wooden floors shall not exceed 1.5mg/L, and the surface wear resistance should be ≥6000 revolutions. Low wear resistance will seriously affect the service life of the floor. In 2006, the Beijing Municipal Administration for Industry and Commerce commissioned the National Building Materials Testing Center to conduct random inspections on indoor decoration and renovation products sold in the circulation domain of 18 building materials markets, malls, and supermarkets in our city. The results showed that among the 9 unqualified laminate composite wooden floor samples, the problem was mainly concentrated on the surface wear resistance project. For example, the "Ou Tai" brand's golden walnut wood floor had only 140 revolutions of wear resistance. The main reason for this situation is that the manufacturer used inferior impregnated paper during production in order to pursue low cost.
● The content of harmful substances and covering ability of coatings cannot be ignored
Whether it is latex paint or wood paint, safety performance, i.e., the content of toxic and harmful substances, is the most important thing to note. Excessive harmful substances such as VOC, benzene, toluene + xylene, and heavy metals in the coating can cause harm to the human body. Currently, water-based coatings, especially water-based wood paints, have gradually been recognized and accepted by people. The content of benzene substances in water-based paints can be far superior to the national standard and is becoming a new favorite in decoration materials.
When choosing latex paint, in addition to asking the merchant for an environmental protection material inspection report and comparing prices from different sources, you should also choose coatings with strong adhesion, strong covering power, delicate texture, resistance to powdering, waterproofing, anti-mildew, and easy brushing properties according to different needs, thereby reducing the occurrence of fine cracks in walls, peeling of paint films, and mildew spots. According to the test results published by the Beijing Administration for Industry and Commerce at the end of 2006, the alkaline resistance of two brands of latex paint, "Laoshouxing" and "Xinmeili," was found to be unqualified, and their washability was extremely poor.
● Tiles free from radiation interference, focus on wear resistance and warpage
The radiation of tiles once became the biggest concern for consumers. After the Beijing Administration for Industry and Commerce conducted random inspections on indoor decoration and renovation products at the end of 2006, it was found that all tested samples were qualified. Good tile glaze should be smooth and delicate, with a glossy luster. Scratching the tile with a sharp object will not leave any scratches. Tapping the tile, the sharper the sound, the higher the degree of porcelain and density, and the better the hardness. Observe whether the side of the tile is straight; if it is warped, it will affect the firmness of the tile.
For more information on various types of building materials, please visit the Building Materials Information Network: http://www.jiancaixinxi.net/