Study on edge strength of float glass as a function of edge processing

For the design of glazing the edge strength of annealed float glass becomes more and more important. In current standards the edge quality is defined by visual and geometric characteristics only. The strength of the glass edge, depending on the type of processing, however, is considered insufficiently in standards. In cooperation with the working group edge strength at Fachverband Konstruktiver Glasbau e.V. (FKG) different types of edge processing were investigated experimentally, and evaluated statistically. The analysis of the experiments gives a first estimate for the correlation between edge strength and the edge processing, considering the variation of production factors.