1. Preferred environmental performance: When identifying the environmental performance of the moisture-proof board, we need to check its environmental performance in conjunction with the inspection report. Then combine the environmental protection signs to view. Whether the model is consistent with the environmental protection mark.
2. The strength of the moisture-proof board is determined by its internal structure. In general, when selecting materials, the internal particles should not be too large, otherwise it will cause many internal pores and result in low strength. So it is best to cut open to see the size of the internal particles.
3. Moisture resistance is the most important. You can take a small sample and soak it in water for a period of time to observe the result.