ExtraClear
ExtraClear
The glass that goes the extra mile
Standard clear glass has an inherent greenish colour due to its iron oxide content. This green tint is visible particularly when viewing the edge of the glass or in a composite stack of many glass lites. Guardian ExtraClear™ float glass contains less iron oxide than standard clear float glass, resulting in enhanced colour neutrality in transmission and reflection.
In addition to its optical quality, Guardian ExtraClear glass delivers approximately 6% lower embodied carbon than the average European standard float glass.* As of today, it represents the standard (mid-iron) float glass with the lowest embodied carbon value produced in Europe. This performance reflects Guardian Glass’ commitment to Stewardship and ongoing efforts to improve energy efficiency and reduce air emissions. These improvements are made possible through sustained investments in advanced furnace technologies and energy efficiency projects across our operations in Europe.
Guardian ExtraClear can be heat treated, laminated, or coated, and has a wide range of applications including high performance facades, partitions, store fronts, solar control glass, laminated safety glass, and silk-screen printed glass among others.
The A1-A3 embodied carbon value for Guardian ExtraClear glass produced in Europe (9.64 kg CO2 eq/m2 for a 4 mm glass thickness) was derived from the EPD and verified for conformance to ISO 14040/44, EN 15804, and the Product Category Rules (PCR) through a program operator and independent reviewer.
*As of May 2025, when comparing the cradle-to-gate (A1 - A3) embodied carbon value of Guardian ExtraClear float glass produced in Europe vs. an average calculated from publicly available EPDs from the primary European flat glass manufacturers, the calculated reduction is approximately 6%. This comparison is not based on a third-party verified comparative life cycle assessment (LCA). This comparison is based on internal calculations using publicly available EPDs and acknowledges that not all EPDs use the same methodologies, assumptions, and data quality requirements.
Product information
- Guardian ExtraClear 3-15 mm
- Guardian NEXA 4-10 mm
- Annealed
- Laminated
- Bent
- Not applicable
- <3210x6000mm available as standard<br /> <3210x9000mm available on special request
- No
- Reduced Iron Content
- Standard aesthetics
- Can be used Monolithic
- Can be in an Insulating Glass Unit
- Neutral
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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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.
- Default Performance Data
- Performance Calculations
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Monolithic
Monolithic
GLASS: Guardian ExtraClear (CE) Glass, 4mm
Calculated Values are in accordance with EN 410:2011 / EN 673:2011
Performance Values For more details on the performance values displayed and Embodied CO2 please click here
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Monolithic
Not available for this product
-
Double
Not available for this product
-
Triple
Not available for this product
Monolithic
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
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