Tempered glass is made by heating flat glass to just below its softening temperature and suddenly chilling it with jets of cold air. It results the outer skins under powerful compressive stress and the interior with severe tensile stress. In consequence, the impact applied to the glass will be overcome by the compressional stress on the surfaces to assure safety of use.
• 5 times stronger than annealed glass • Once breakage occurs, the glass disintegrates into small cubical fragments which are relatively harmless to human body. • It withstands abrupt change of temperature .