LAMINATED GLAZING

摘要

A fire-resistant laminated glazing comprising at least two glazing panes and at least one transparent intumescent interlayer between the glazing panes, said glazing panes being separated by a spacer extending at least partially around their peripheries so as to define a cavity to contain said interlayer, wherein the spacer comprises a shim for controlling the separation between the glazing panes to a predetermined distance and a rubber portion at least partially enclosing the shim, and wherein the interlayer comprises an alkali metal silicate.