The second is safety in use, as its load-bearing capacity increases and improves its fragility. Even if tempered glass is damaged, it appears as small shards without sharp angles, greatly reducing the harm to the human body. The resistance to rapid cooling and heating of tempered glass is 3-5 times higher than that of ordinary glass, and it can generally withstand temperature changes of over 250 degrees Celsius, which has a significant effect on preventing thermal cracking. It is a type of safety glass. To ensure the safety of qualified materials for high-rise buildings.


1. Tempered glass cannot be cut or processed again. It can only be processed to the desired shape before tempering, and then tempered.

3. The surface of tempered glass may have unevenness (wind spots) and slight thinning of thickness. The reason for thinning is because after the glass is softened by hot melting, it is rapidly cooled by strong wind, causing the crystal gap inside the glass to decrease and the pressure to increase. Therefore, the glass is thinner after tempering than before. In general, 4-6mm glass thins by 0.2-0.8mm after tempering, while 8-20mm glass thins by 0.9-1.8mm after tempering. The specific degree depends on the equipment, which is also the reason why tempered glass cannot be used as a mirror.
4. Flat glass used in construction after physical tempering in a tempering furnace generally undergoes deformation, and the degree of deformation is determined by the equipment and technical personnel's process. To some extent, it affects the decorative effect (except for special needs).