Toughened curved glass is a product that is safe while offering a high mechanical resistance and a high resistance to thermal tensions. Duglass tempered glass is obtained by subjecting the glass to a controlled thermal treatment which consists of heating the glass till it reaches a temperature close to its softening point and then cooled very quickly with forced draughts of air on its surface. Due to this thermal process the glass obtains the surface tension necessary to strengthen its mechanical characteristics.

Toughened curved glass is safe because in case of breakage, it will shatter into small fragments with a minimum cutting capacity which is why it is recommendable in applications where there is a risk of breakage.