How customers choose endurance boards.

How to judge the quality of the sheet, the following Roofing Sheet manufacturers introduce several methods for purchasing endurance sheets.

1. Look at the packaging. Although the packaging cannot determine the quality of the solid sheet, just like when purchasing other products, good packaging gives people a good first impression, and the packaging can also reflect the manufacturer's attitude towards work. Therefore, checking the packaging is also a part of purchasing endurance boards.

2. Polycarbonate Sheet manufacturers uncover the protective film of the endurance board and observe the surface. If there are more air bubbles and particles, it means that the selection of raw materials is not the best. Generally, the appearance of a good endurance board is basically the same. Less than any particles and air bubbles.

3. PVC sheet manufacturers put the endurance board in the sun and expose it to the sun. After a period of time, if some parts of the board are found to be yellow, it means that the quality of the endurance board is not good. In addition, you can also put a piece of white paper under the endurance board, and check whether the endurance board is yellow by comparison. If it is yellow, it means that the quality is not good.

4. Select a smaller endurance board for combustion test. A good quality endurance board will extinguish itself when it is far away from the fire source.

5. Put the endurance board on the white paper to see the lightness. A little yellow indicates that the raw material is poor.