The long term stability of fire resistant laminated glazings comprising a silicate based interlayer is improved by the introduction of a particulate material which absorbs hydrogen into the interlayer. The particulate material is preferably a metal such as nickel, platinum and palladium. The size of the particles is preferably in the range 15 to 70nm. The presence of from 1 to 20 ppm of material improves the stability of the interlayer when exposed to UV radiation.
