When selecting floors, you must ensure that the major indicators are qualified. These indicators and national standards are:
1. Thickness of water-absorbing thickness: The water-absorption thickness expansion rate of excellent products is below 2.5%; the water-absorption thickness expansion rate of first-class products is below 4.5%. With water bubbles, the quality of water absorption is poor.
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2, the surface wear resistance: the floor because there is no wear-resistant layer or wear resistance is extremely low and is called false floor, this floor surface and real composite flooring no difference, after sanding several times, will Found that the decorative pattern was polished and turned white immediately. This floor is a fake floor. If you have a large population in your home and do not pay much attention to maintenance, you may choose a higher wear resistance; but if you pay more attention to the maintenance of the floor, the floor is less exposed to strong, hardware wear, choose a relatively low wear resistance May be more economical. Family wear-resistant rotations can be more than 6,000 rpm. . Can be rubbed with sandpaper, poor quality is easy to find. The abrasion resistance of composite flooring mainly depends on the coating of aluminum oxide (commonly known as gem). The higher the aluminum oxide crystal content per unit area of ​​the floor, the higher the degree of wear resistance.
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3, formaldehyde emission: A grade of formaldehyde release value of 9mg/100g or less. B pole 9 to 40 mg / 100 g, to reach the B level can be used. The quality of the glue determines the degree of contamination of the laminate flooring, and the quality of the good glue formaldehyde is low.
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