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Super Spacer

Super Spacer® is a flexible, silicone foam spacer technology by Edgetech UK.

Traditionally, insulating glass units used a metal spacer bar to separate the two panes of glass. Typically made from aluminium these metal spacer bars were highly conductive and facilitated heat loss rather than preventing it.

Warm edge spacer systems were developed to overcome the challenges of using aluminium and help prevent heat transfer and condensation on insulating glass units. We launched our first Super Spacer warm edge spacer in 1989.

Super Spacer is a non-metal, pre-desiccated, structural foam spacer system which provides excellent perimeter insulation for sealed glazing units and significantly simplifies insulating glass production.

Benefits of Super Spacer Warm Edge Spacer Systems


From improving energy efficiency to enhancing the productivity of manufacturing insulating glass units, our Super Spacer warm edge spacer systems deliver many great benefits.


Energy Efficient

94% of energy loss through a window using an aluminium spacer system occurs at the edge of the glass, this is due to the highly conductive nature of the metal used. Our warm edge Super Spacer is over 950 times less conductive, blocking heat loss and reducing energy costs. Super Spacer reduces window U-values by up to 0.2W/m2K allowing windows to achieve the highest Window Energy Ratings.

  • Reduces condensation by up to 70%
  • Up to 65% warmer at the internal edge
  • Successfully tested from -40° to 85° C
  • Over 950 times less conductive than aluminium

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  • Reduces external noise pollution by up to 2dB

  • Reduces condensation by up to 70%

  • Successfully tested from -15° to 125° C

  • More than 100 EN1279 Part 2 & Part 3 passes

  • 40-year performance guarantee

  • Improves Productivity

    Creating insulating glass units with our warm edge spacer system Super Spacer removes a significant amount of labour from the manufacturing process to streamline and enhance the production line and improve productivity. Super Spacer is less labour intensive as it doesn’t need to be cut into bar length form, it doesn’t need to have a PIB primary seal applied and it doesn’t need to be filled with desiccant.

    We offer three entry levels for Super Spacer production with proven equipment choices selected from several leading manufacturers. Whatever your production levels and budget, we’ll have a Super Spacer solution to suit.

    High Quality

    Our Super Spacer warm edge spacer delivers unrivalled product quality and has consistently been shown to outlast other dual seal systems by 2½ times. Long-lasting quality is our guarantee and at Edgetech we stand behind our best-in-class products with our 40-year performance guarantee.

    • Up to 2 decibels reduction in noise
    • 40-year performance guarantee
    • Excellent resistance to Nitrogen and Argon gas absorption
    • Structural integrity for extreme durability

    Neutral Appearance

    Super Spacer warm edge spacer systems take on the appearance of the colour of the profile into which it is glazed. For example, if Super Spacer is glazed into a white profile the spacer will reflect white, eliminating the need to stock a wide range of different colours and simplifying ordering and stock control.

    Tried & Tested

    Super Spacer passes EN1279 Part 2 and Part 3, a legal requirement for all sealed insulating glass unit manufacturers in the UK. We’ve also subjected the warm edge spacer system to rigorous testing worldwide to meet our customers’ needs internationally. Super Spacer is proven to withstand temperatures from -40° to 85°C, well beyond any temperatures we experience in the UK.

    • A unique dual seal system
    • Advanced multi-layer vapour barrier
    • Excellent UV resistance
    • More than 100 EN1279 Part 2 & Part 3 passes

    Looking for insulating glass units with warm edge spacer systems? Get in touch with our team to find a supplier local to you.

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