The Spontaneous Glass Breakage Phenomenon

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Just last week, Good Morning America had a story about “spontaneous breakage.” What exactly is it, and how can you prevent it? Spontaneous glass breakage is a phenomenon by which ‘toughened’ or tempered glass may spontaneously break without any apparent reason. Here are some of the causes:

  • Minor damage during glass installation, whereby larger cracks radiate from the point of defect
  • Thermal changes, such as extreme heat and/or cold, which can alter the integrity of the glass or cause the glass to bind to the casing
  • Nickel sulfide inclusions, which are defects in the glass material
  • Wind load on insufficient glass thickness

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