Heat strengthening is a process that provides the product with a significant resistance to mechanical and thermal stresses. In fact, its physical properties, as a result of heat strengthening include a bending strength between annealed and fully tempered glass.

This product is not a safety glass. It should not be used in monolithic form where human contact is a concern.

The breakage pattern of heat strengthened glass is similar to regular annealed glass. In certain installations this is advantageous, in that the stability of the larger fragment, such as spandrels, remain in the frame.

Heat strengthened glass is an advisable alternative where the glazing application requires mechanical strength to be too great for annealed, yet less than fully tempered glass.

Similarly, where the glazing situation demands a temperature differential too great for annealed, but less than that of fully tempered glass, it is again advantageous to utilize the physical properties of heat strengthened glass.

Advanced versions of multipoint glazing installation, as wall as extensive overhead systems are utilizing a combined laminated product. It consists of combining the physical properties provided by heat strengthened with fully tempered and thus delivering the thermal, mechanical and break patter n desired.

Fabrication of heat strengthened glass will follow the same general rules as for fully tempered. Edgework, notches, holes must be done prior the at strengthening.