Atlas index
Glazing · 4–19 mm
Glass — indicative fig. M·55

Ultra-clear float glass with 0.01% iron content delivering 91% light transmission and exceptional clarity for premium architectural applications

01 Physical

Density 2500kg/m³
Specific gravity 2.5
Porosity 0%
Water absorption 0%
Hardness 5.5Mohs
UV resistance Excellent
Chemical resistance Excellent
pH tolerance 3 – 11
Surface roughness 0.001μm Ra

02 Mechanical

Tensile strength 40MPa
Compressive strength 1000MPa
Flexural strength 45MPa
Shear strength 25MPa
Poisson's ratio 0.22
Creep resistance Excellent

03 Thermal

Thermal conductivity 1W/mK
Specific heat 840J/kg·K
Thermal expansion 9×10⁻⁶ K⁻¹

04 Compliance & Fire First question

Combustibility class Non-combustible
Flame spread index 0
Smoke dev. index 0
Heat release rate 0kW/m²

05 Sustainability & Health

Embodied carbon 10.5kg CO₂e/m²
Embodied energy 150MJ/m²
Recyclability 100%
Recycled content 15%
Renewable content 0%
VOC emissions 0g/L
Toxicity rating Non-toxic
LEED contribution 2points

06 Durability · Cost · Logistics

Expected lifespan 50years
Maintenance interval 1years
Warranty period 10years
Material cost (range) 140 – 145AUD/m²
Material cost (per unit) 142AUD/m²
Lead time 5-21days
Annual maintenance 5AUD/m²
Market availability Good

07 Assessment

Advantages

  • Maximum light transmission (91%+)
  • No green tint - crystal clear appearance
  • Superior colour rendition
  • Excellent for painted and coated applications
  • All standard processing options available
  • Enhanced aesthetic appeal
  • Ideal for thick glass applications
  • UV-A transmission for solar applications
  • Australian Standards compliant

Constraints

  • Premium cost (3.5-4× standard glass)
  • Requires adjusted tempering cycles
  • Limited stock availability in regional areas
  • Higher thermal stress risk due to transparency
  • No Australian-specific EPDs available
  • Longer lead times for custom sizes

08 Applications

A1 Frameless glass pool fencing
A2 Shopfront and retail display windows
A3 Museum display cases
A4 Solar panel covers
A5 Architectural balustrading
A6 Shower screens
A7 Glass furniture
A8 Aquariums
A9 High-end residential windows
A10 Commercial atriums
A11 Greenhouse glazing
A12 Painted glass splashbacks

09 Sources & Standards

Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.

MATERIALS ATLAS · CL·AD M·55 · data indicative — verify per project