SSG^® DuraGlas-Q

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Tempered Heat-Soaked Safety Glass

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.

SSG^® DuraGlas-Q is a certified safety glass under AS/NZS 2208.

SSG DuraGlas-T	SSG DuraGlas-Q	SSG DuraGlas-HS
4-5 times stronger than annealed glass	4-5 times stronger than annealed glass	2 times stronger than annealed glass
Tend to fracture into small fragments	Tend to fracture into small fragments	Tend to fracture into large fragments
Can withstand up to 295˚C	Can withstand up to 295˚C	Can withstand up to 295˚C
Safety Glass	Safety Glass	Non-safety Glass
Risk of spontaneous breakage	Negligible risk of spontaneous breakage	Negligible risk of spontaneous breakage

Low Risk of Spontaneous Breakage
Risk of spontaneous breakage due to nickel sulphide formation is almost eliminated in SSG^® DuraGlas-Q.

Mechanical Strength
SSG^® DuraGlas-Q is four to five times mechanically stronger than annealed glass of the same type and thickness. The compressive surface stresses close microscopic cracks and strengthens the glass.

Safety
In occasions of breakage, SSG^® DuraGlas-Q breaks into small and granular harmless pieces, unlike the sharp and jagged shards from broken annealed glass. This makes SSG^® DuraGlas-Q less injurious than ordinary annealed glass and a classified safety glass.

Thermal Resilience
SSG^® DuraGlas-Q can withstand temperatures up to 295˚C. It can also endure temperature shocks of 150˚C without breakage, making it approximately three times as resistant to rapid temperature changes as annealed glass.