CLEAR STABLE AQUEOUS SOLUTION BASED UPON WATERGLASS FOR THE PRODUCTION OF FIRE RESISTANT GLAZING

摘要

Fire resistant glazings comprise a fire resistant interlayer based upon a silicate waterglass are characterised by the incorporation of aluminium ions. The aluminate is incorporated as a solution which has been partially neutralised using a hydroxycarboxylic acid which is preferably citric acid. The incorporation of aluminium provides glazings have improved fire resistance and impact properties