Big core board purchase common sense
The large core board, also known as the blockboard, is the basic material in the home decoration. It is made up of two veneers laminated in the middle. In the middle of the blockboard is a core made of natural wood strips, with thin veneers on both sides. It is an essential wood product for wall decoration, top decoration and fine wood decoration in home decoration. It is mainly used as a panel for furniture. , the keel frame of the door and window frame, etc.
First, check the manufacturer's trademark, production address, anti-counterfeiting mark, etc.
The amount of formaldehyde released in the product test report is less than or equal to 1.5 mg per liter. Generally, there are test reports produced by regular manufacturers. The lower the detection value of formaldehyde, the better.
Look at whether the surface of the large core board is flat, whether there is warpage or deformation, whether there is blistering or dent; whether the blockboard can be cut open at the scene or during construction to see if the inner core strip is even and tidy, the smaller the gap, the better; The width of the core should not exceed 2.5 times the thickness, otherwise it will be easily deformed; the core strip should be free from decay, breakage, wormholes, thrift and so on.
Whether the core strips are even and tidy, the smaller the gap, the better, the core strip has no decay, breakage, wormholes, thrift, etc. Under normal circumstances, the quality of the large core board with good appearance quality is better.
If the large core board emits a fragrant wood smell, it means that the amount of formaldehyde released is small; if the smell is pungent, it means that the amount of formaldehyde released is large, so don't buy it.
When selecting a large core board, it is important to look at the internal wood, which should not be broken, and the blockboard with a gap of about 3 mm between the woods is suitable. Many consumers choose large core boards, one looks at the weight, and the other looks at the price. In fact, the weight exceeds the normal large core board, indicating the use of miscellaneous wood. The large core board made of miscellaneous wood is not nailed at All, so it cannot be used.
Home decoration can only use E1 level large core board. The E2 grade large core board may also contain more than three times more formaldehyde than the E1 grade core board, so it should never be used for home decoration. Secondly, it is necessary to purify and seal the large core board which cannot be finished, especially the decorated backboard, various cabinet inner panels and heating hoods. At present, experts have developed formaldehyde sealants, formaldehyde-blocking waxes, and aerosols that eliminate and block formaldehyde, and the best results are used. Generally, no more than 20 large core plates should be used in the living room of about 100 square meters. Excessive use will result in excessive formaldehyde in the indoor environment. In particular, do not use a large core board as a lining under the floor.
In addition, add a word “must comply with national standards†on the purchase contract or invoice, and at the same time, it is best to leave a sample in the construction. Once the project is finished, it is found that the indoor environmental pollution caused by the quality of the large core board can be used as The basis for judging responsibility.
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