Insulating glass is also known as Double Glaze Unit (DGU). Safex Insulating Glass is thermatically sealed combination of glasses separated by Aluminium spacer with dehydrated airspace. Glass panes can be Annealed, Tempered, and Heat Strengthened or Laminated depending upon the specification. A variety of combination of glass types including Low E, reflective etc. can be used to achieve a wide variety of performance properties.