Core Product- DuraGlas-Q

Although all tempered glass offers a high degree of resistance to breakage, all fully tempered glass are potentially at risk of spontaneous breakage due to the formation of nickel sulphide during glass production.

When nickel-rich contaminants such as stainless steel are present in the glass melt materials, the nickel may combine with sulphur in the batch to form an impurity called nickel sulphide. These impurities are minute in size ranging from 50 to 150 microns and cannot be totally eliminated by current technology. However, through a heat-soaking process, the risk of spontaneous breakage in tempered glass can be almost eradicated. In heat-soaking, the inversion of nickel sulphide stones to their low temperature phase is accelerated under a controlled process such that potential breakage of the glass happens in the factory rather than on-site.