SunGuard® SuperNeutral®

SN 51/28

Photo Credit: Georges de Kinder Also used as GT-24-BI-03

Striking the perfect balance

SunGuard® SuperNeutral (SN) 51/28 doesn’t sacrifice natural light to meet stringent solar control requirements. As a neutral, high selectivity glass option, SunGuard® SuperNeutral 51/28 offers advanced solar control and outstanding thermal insulation, while reducing the need for using artificial light. With a neutral transmitted and reflected colour, the product is ideal for full facade glazing. SunGuard® SuperNeutral 51/28 is available in heat-treatable and annealed forms, offering similar performances and appearance uniformity.

Energy savings

Through thermal insulation and reduced artificial light

Low solar heat gain

While maintaining high light transmission

Available on laminated glass

For acoustics, security and comfort

Solution for matching spandrel

Ideal for curtain walls

Product Information

Thickness

  • 4 - 12 mm

Applications

  • Facades
  • Windows
  • Doors
  • Curtain Walls
  • Roofs
  • Skylights

Manufacturing Options

  • Tempered
  • Laminated
  • Heat Strengthened
  • Annealed

Available Sizes

  • Maximum Height x Width: 2600 x 3600 mm

Recommended coating positions

  • Laminated: 4
  • Double glazed: 2

Edge Deletion

  • Required: Yes

Application type

  • Can be used in: Laminated, Insulating Glass Unit
Show full specification Show less specification

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.

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.

* Please see Colour Disclaimer at the bottom of the page for additional information.

Performance Data

Double glazed Double glazed

  • Visible Light

    1. Transmittance [%] 50.3
    2. Reflectance outside [%] 12.4
    3. Reflectance inside [%] 22.6
    4. Colour Rendering Index (Ra) 91.9

  • Solar Energy

    1. Solar Factor (g) [%] 28.2
    2. Direct transmission[%] 25.2
    3. Reflectance outside [%] 37.0
    4. Absorption [%] 37.8
    5. UV [%] 14.8

  • Coefficients

    1. Shading Coefficient (sc) [g/0.87] 0.32

  • Thermal Properties

    1. U-Value [W/m²·K] 1.5

  • Composition

    1. Composition 6mm - 12,7mm - 6mm - Coating on 2
    2. Glass 1 & Coating SunGuard SN 51/28 on Guardian ExtraClear
    3. Gap 1 100% Air
    4. Glass 2 & Coating Clear
    5. Calculation Standard EN 410:2011 / EN 673:2011

See product specifications

Laminated Laminated

  • Visible Light

    1. Transmittance [%] 50.5
    2. Reflectance outside [%] 12.3
    3. Reflectance inside [%] 22.8
    4. Colour Rendering Index (Ra) 92.1

  • Solar Energy

    1. Reflectance outside [%] 32.2
    2. Solar Factor (g) [%] 27.5
    3. Direct transmission[%] 24.5
    4. Absorption [%] 43.4
    5. UV [%] 1.0

  • Coefficients

    1. Shading Coefficient (sc) [g/0.87] 0.32

  • Thermal Properties

    1. U-Value [W/m²·K] 1.5

  • Composition

    1. Composition 6mm + 0,38PVB + 6mm - 12,7mm - 6mm - Coating on 4
    2. Glass 1 & Coating 66.1 SunGuard SN 51/28 on Guardian ExtraClear
    3. Glass 2 & Coating Clear
    4. Gap 1 100% Air
    5. Calculation Standard EN 410:2011 / EN 673:2011

See product specifications

Color Disclaimer Color Disclaimer

Displayed colors are intended to represent actual color. Color is a function of light and reflectivity and cannot be accurately portrayed online. Actual glass samples should be used to determine color. Please order a sample and discuss color with your Guardian Architectural Design Manager to ensure you are pleased with your SunGuard selection before ordering glass for your project.

Thermal Stress Disclaimer Thermal Stress Disclaimer

The thermal stress guideline is only a rough guide to the thermal safety of a glazing. Other factors such as large glass areas, shapes and patterns, thick glass, glass damaged during shipping, handling or installation, orientation of the building, exterior shading, overhangs/fins that reduce wind speed, and areas with high daily temperature fluctuations can all increase the probability of thermal breakage. The results shown are not for any specific glazing installation and do not constitute a warranty against glass breakage.