Continental Europe - EN

SNX 70

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SunGuard® eXtraSelective

SNX 70

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It’s time to be more selective – with SunGuard® SNX 70

SunGuard® SNX70 glass offers some of the highest levels of selectivity, with outstanding solar control and light transmission approaching 70% – plus high thermal insulation. Yet it also has a uniquely clean, natural appearance and a subtle reflective quality that achieves a strikingly uniform aesthetic across design contours and different viewing angles. It’s particularly suited to office, healthcare and educational buildings, where higher levels of natural light could help encourage focus, recovery and learning. As part of the SunGuard® range in Europe, SunGuard® SNX 70 also has an EPD (Environmental Product Declaration) and has been independently assessed under the Cradle to Cradle Certified® Products program, where it is certified Bronze.

Product information

  • Guardian ExtraClear 4-12 mm
  • Guardian UltraClear 4-12 mm
  • Windows
  • Facades
  • Roof window
  • Curtain walls
  • Doors
Manufacturing Options
  • Heat Strengthened
  • TPF (Temporary Protective Film)
  • Heat Soaked
  • Annealed
  • Dual Product (Annealed and Heat Treated versions)
  • Laminated
  • Bent
  • Tempered
Recommended Coating Positions
  • Surface 2 (double IGU)
  • Surface 2 (triple IGU)
Maximum Size
  • <3210x6000mm
Edge Deletion
  • Yes
Glass Type
  • Triple Silver Coated Glass
Glass Functions
  • Solar control
  • Thermal insulation
Fabrication Options
  • Must be used in an Insulating Glass Unit
  • Neutral

More natural light, more energy efficiency

As a further development of our triple silver-coated glass technology, SunGuard SNX 70 offers architects the opportunity to introduce higher levels of natural light, along with opportunities for improvements as to energy efficiency and comfort for inhabitants.

It’s particularly effective when combined with Guardian UltraClear® as the base glass – available as SunGuard SNX 70 Ultra. In standard double insulating units this provides 68% light transmission, 32% of solar factor, and a Ug value of 1.0 W/m2K. Just as impressive, in standard triple glazed units it offers 62% light transmission, 30% of solar factor and a Ug value of 0.5 W/m2K. The glass’ superior transparency also means that views from both inside and out are truer in color.

Striking elegance

Along with high performance, a superior design aesthetic is a further benefit of SunGuard SNX 70. With an external reflection of 13% in double insulating glass, it can bring an elegant character to buildings, helping them appear more alive in their surroundings and offering greater visual appeal to passers-by. SunGuard SNX 70 is available in both annealed and heat treatable versions (HT).

Visual Appearance

Use the Glass Visualizer to get an introductory understanding of how glass will appear in use. Use the Glass Analytics tools to explore even more options for color and performance.

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There is only one substrate available for this product


This tool intended to represent the reflected/transmitted color ; however, glass color cannot be accurately portrayed online. For more information, launch the Glass Visualizer.

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Modified Image

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Calculate Performance Values & Generate BIM Files
Generate product performance data for custom glass make-ups and create detailed BIM object files for your project
Performance data

The glazing make-up suggestions below are pre-defined to provide examples of commonly used combinations of products. There are many other glass combinations available at Glass Analytics.

Triple Glazed


GLASS: Guardian ExtraClear (CE) Glass, 6mm (2-SunGuard® SNX 70 (CE))

GAP: 10% Air, 90% Argon 14.0mm

GLASS: Guardian ExtraClear (CE) Glass, 4mm

GAP: 10% Air, 90% Argon 14.0mm

GLASS: Guardian ExtraClear (CE) Glass, 4mm (5-ClimaGuard® Premium2 (CE))

Calculated Values are in accordance with EN 410:2011 / EN 673:2011

Performance Values

Visible Light
Transmittance (τv)
60 %
Reflectance outside (ρv)
13 %
Reflectance inside (ρv)
16 %
General Color Rendering Index (CRI)
Transmittance UV (τuv)
4 %
Solar Energy
Solar transmittance (τe)
28 %
Reflectance outside (ρe)
38 %
Reflectance inside (ρe)
39 %
Solar absorptance (αe)
34 %
Solar Factor (g)
31 %
Shading Coefficient (sc)
Thermal properties
U-Value (Ug)
0.6 W/m²·K

Double Glazed


GLASS: Guardian ExtraClear (CE) Glass, 6mm (2-SunGuard® SNX 70 (CE))

GAP: 10% Air, 90% Argon 16.0mm

GLASS: Guardian ExtraClear (CE) Glass, 4mm

Calculated Values are in accordance with EN 410:2011 / EN 673:2011

Performance Values

Visible Light
Transmittance (τv)
66.8 %
Reflectance outside (ρv)
10.8 %
Reflectance inside (ρv)
12.0 %
General Color Rendering Index (CRI)
Transmittance UV (τuv)
5.8 %
Solar Energy
Solar transmittance (τe)
31.3 %
Reflectance outside (ρe)
36.9 %
Reflectance inside (ρe)
41.7 %
Solar absorptance (αe)
31.8 %
Solar Factor (g)
33.2 %
Shading Coefficient (sc)
Secondary Heat Transfer (qi)
Thermal properties
U-Value (Ug)
1.0 W/m²·K
Performance Calculations
With the performance calculator, you can quickly calculate the performance data that matches your own glazing make-up
  • 1 Pane
  • 2 calculation format
  • 3 Results
  • 1 Outer Pane
  • 2 Inner Pane
  • 3 cavity
  • 4 calculation format
  • 5 Results
  • 1 Outer Pane
  • 2 Middle Pane
  • 3 Inner Pane
  • 4 cavity
  • 5 calculation format
  • 6 Results
Choose a glazing

  • Monolithic

    Not available for this product

  • Double

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  • Triple

    Not available for this product


Monolithic Laminated

Double Glazed

Double Outer pane Laminated

Double Inner pane Laminated

Double Inner and Outer pane Laminated

Triple Glazed

Triple Outer pane Laminated

Triple Inner pane Laminated

Triple Inner and Outer pane Laminated

Outer Pane

There is only one substrate available for this product.
There is only one Interlayer available for this product.
There is only one substrate available for this product.
There is only one thickness available, to calculate other thickness' please go to Glass Analytics
Glass thickness are symetrical and represent the glass to be laminated
There is only one coating available
There is only one coating available
There is only one coating available
There is only one coating available
Choose your calculation format

There is only one calculation standard available
There is only one unit available for this calculation standard

Calculated Values are in accordance with

Performance Values

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