At present, fires caused by thermal insulation materials in China have occurred, resulting in the loss of human property and people, causing huge losses to people's lives. Therefore, we must pay attention to the quality of the insulation boards when choosing insulation materials, then how to identify phenolic What is the quality of the insulation board? As an external wall phenolic insulation board is also an external wall insulation material. What should be paid attention to when choosing insulation materials?

1. During production, it is produced by making large bubbles. Generally, the products produced by such methods are relatively low in density, easy to be brittle, and prone to powdering or slag.

2. The other is the production of the line, the warming plate for the modified phenolic, the phenolic resin and the foaming process are improved, and the modified phenolic insulation board is overcome to some extent to overcome the self-pulverization. The disadvantage of the slag, so that the density of the modified phenolic insulation board is generally above 55KG.

3. In addition to the above method identification, we can also observe the appearance of the phenolic insulation board, press the density by hand, open the toughness of the insulation board, and rub the slag by hand to identify the external wall phenolic The quality of the insulation board.

4. When purchasing the insulation board, you must choose the regular manufacturer to buy, because the regular manufacturers of this type, the products they produce are controlled by the strict quality supervision department. The quality problems of products produced by such regular manufacturers are relatively small.

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