With insulation, Chromatics glass achieves U-values equal to or better than an IGU. There is no possibility of seal failure. A monolithic panel utilising 6mm Chromatics weighs only 15kg/m2. An IGU weighs in excess of 30kg/m2. The inherent strength of the Chromatics process makes it possible to specify 4mm glass rather than 6mm reducing the glazing weight by a third.