Why does tempered glass spontaneously explode? It's a probability event, not a quality issue. Guangzhou tempered glass custom manufacturer
Release time：
Jun 06,2025
Spontaneous breakage of tempered glass refers to the sudden shattering of glass without any external force. This is caused by an imbalance of micro-expansion stress due to nickel sulfide impurities inside the glass during the tempering process. It is a probabilistic physical phenomenon, with a global spontaneous breakage rate of approximately 0.3% to 0.5% for tempered glass.
To reduce the spontaneous breakage rate, one can choose tempered glass with a heat immersion treatment to "screen out" easily breakable pieces; or use laminated glass structures to prevent shattering and splashing.
Although spontaneous breakage is infrequent, it affects safety. In high-rise curtain walls, skylights, balcony railings, and other places, it is essential to choose products with heat immersion or laminated processes.
Understanding the scientific principles behind the spontaneous breakage of tempered glass helps us make more rational and safer choices when selecting materials.
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