Heat-strengthened glass


BI-Hestral is heat-tempered or semi-tempered glass. It is particularly advantageous for applications where special safety criteria must be met. The production of BI-Hestral is similar to that of single-pane tempered safety glass, except for the fact that after the glass plates have been heated to the initial shaping range, they are not cooled nearly as abruptly in the air shower. The plates are processed into a tempering range which lies between normal flat glass and single-pane tempered safety glass, yet which is much closer to fully thermally tempered glass.

Product description BI-Hestral