Windows & Glazing - Schott Pyran® S SCHOTT Australia Type Frameless glass, Safety glass Glazing Single Nominal thickness 5,6,8,10,12 U Value / Insulation 5.8,5.8,5.8,5.8,5.8 Visible light transmission 92,92,92,91,91 Weight 11.4,13.7,18.2,22.8,27.4 Schott Pyran® S borosilicate glass for use in fire resistant glazing SCHOTT Australia