MDF purchasing skills
Jul 09, 2022
1. Environmental protection
According to national standards, MDF can be divided into E0, E1 and E2 grades according to its free formaldehyde content. The formaldehyde emission of E2 grade is ≤5mg/L; the formaldehyde emission of E1 grade is ≤1.5mg/L, which can be directly used for interior decoration; the formaldehyde emission of E0 grade is ≤0.5mg/L. When consumers buy MDF, they should try to buy products with low formaldehyde emission, which are safer.
The blue pore size is between 0.27-0.98 nanometers and is in crystalline arrangement. At the same time, it has weak electricity. The molecular diameter of formaldehyde, ammonia, benzene, toluene and xylene is between 0.4-0.62 nanometers, and they are all polar molecules. They have the characteristics of preferentially adsorbing harmful gases such as formaldehyde, benzene, TVOC, etc., to achieve purification. The effect of indoor air.
2. Quality
Surface cleanliness: MDF with good surface cleanliness should have no obvious particles on the surface. The particles are caused by impurities brought in during the pressing process, which not only affects the appearance, but also makes the paint film easy to peel off.
Surface smoothness: When you touch the surface with your hands, it should feel smooth. If it feels astringent, it means that the processing is not in place.
Surface flatness: The surface of the MDF should be bright and flat. If the surface is not flat when viewed from the side, it means that there is a problem with the material or coating process.
Overall elasticity: A harder board must be an inferior product.
