Blockboard also refers to large core board. It is a type of decorative board made of two veneers glued together and spliced ??together. It is a type of board product widely used in the modern decoration industry. The quality of blockboards is directly related to the free formaldehyde content in the entire home. Therefore, when purchasing, owners must choose more carefully and try to choose board products with environmental performance reaching E0 level. So, how to choose blockboard when decorating? Let’s take a look with the editor!

Blockboard (commonly known as large core board) is a plywood with a solid wood core. Its vertical ( Differentiated by the direction of the core plate) the bending strength is poor, but the transverse bending strength is high. Most of the boards on the market now are solid, glued, double-sided sanded, and five-layer blockboards, which are one of the most commonly used boards in decoration.

1. Choose machine-made panels. Blockboard production can be divided into two categories: hand-joined boards and machine-joined boards. Hand-joined boards are made by manually inserting wooden strips into the mezzanine. This type of board generally has uneven arrangement of core wood strips and large gaps. It is mostly scraps. The board surface has unevenness and poor nail-holding power, so it is not suitable for sawing and processing. Generally, it can only be used as a whole sheet in some projects of home decoration, such as cushioning rough boards for solid wood floors, etc. The board cores of the machine-assembled panels are evenly and neatly arranged, and the core materials of the surface layer pressurized boards are tightly combined.

2. It is best not to choose hardwood as the core material. The core materials of blockboards are mostly poplar, pine, Paulownia, basswood and hardwood. Filling with pine and other tree species has strong nail-holding power and is not easy to deform; it is best not to choose hardwood, because hardwood does not 'eat nails'.

3. Pay attention to the appearance of the board. If there is glue or putty around the blockboard, it means there must be gaps or loose spots inside. You can also tap the surface of the plate with a sharp-nosed tool. If the transaction difference is large, it means there is leakage inside. In addition, it is also necessary to check whether the surface of the plate is flat, whether there are unevenness, whether it is bent and deformed, etc. A good board is double-sided sanded and feels very smooth to the touch. The four sides are straight, and the side core boards are arranged neatly and without gaps.

4. Pay attention to detecting the moisture content of the board. The moisture content of blockboard should not exceed 12. High-quality blockboards are machine-dried, and the moisture content can reach the standard. The moisture content of inferior large core boards often does not reach the standard.

5. Pay attention to the formaldehyde content of the board. Formaldehyde mainly causes damage to the respiratory system and has been confirmed by the World Health Organization as a carcinogen. It is mainly released from the blockboard. When choosing, avoid using decorative boards with irritating smells. Because the greater the smell, the higher the formaldehyde release, the more serious the pollution, and the greater the hazard.

After reading the editor’s introduction, I believe you already know how to choose and buy blockboards!

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