| Customization: | Available |
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| Certification: | ISO 9001, CE, CCC |
| Application: | Solar Energy |
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Ultra Clear Float Solar Glass/ Low Iron Patterned Glass
Thickness: 3.2/4mm
Glass Features
-- Ultra Clear Float Solar Glass is a kind of extra clear low iron float glass with light transmission higher than 91.5%. Its high performance stability and good process ability make it one of the best choices for photovoltaic modules, solar thermal collectors and solar mirrors.
--Ultra Clear Float Solar Glass offers superior solar energy transmittance and is stable under solar radiation. It also survives harsh environmental conditions and protects the sensitive components of solar modules from water and humidity ingress.
-- Ultra Clear Float Solar Glass is fully tempered as per EN12150. Meanwhile, anti-reflective coating can be deposited on one or two glass surfaces to increase light transmittance by 2%.
Classify&Application
Low Iron Patterned Glass is often used as the cover of PV Module, small protuberant spots can enhance the solar transmittance
Low Iron Float Glass is often used to be the thin film solar cell sustrate, we have the very flat Tempered Low Iron Float Glass you want..
Anti-Reflection Glass is often used to be cover of PV Module, through anti-reflection the glass is similar function with Low Iron Patterned Glass.
Low Iron Mirror is that Low Iron Float Glass coated silver layer, according the collecting ways, there is Flat Low Iron Mirror and Bending Low Iron Mirror.
| Type | Light Transmission | weather resistance | surface |
| Low Iron Patterned Glass | ≈92% | Good | Hydrophilic |
| Low Iron Patterned AR Glass | ≥94.5% | Better | hydrophobic nature |
| Low Iron Float Glass | ≈91.5% | Good | Hydrophilic |
| Low Iron Float AR Glass | ≥94% | Better | hydrophobic nature |
| Light Transmittance | 3.2mm (1/8"): ≥91.6%; 4.0mm ( 5/32"): ≥91.5% |
| Solar Transmittance | 3.2mm (1/8"): ≥91.1%; 4.0mm ( 5/32"): ≥91% |
| Iron Content (Fe2O3) | ≤120ppm |
| Specific weight (kg/m²) | 3.2mm (1/8"): 8 ; 4.0mm ( 5/32"): 10 |
| Thickness tolerance | ±0.2mm |
| Dimension tolerance | ±0.5~1.0mm |
| Diagonal difference | ≤0.1-0.2% |
| Overall Bow/warp | <0.2% |
| Local warp | ≤ 0.3mm / 300mm |
| Fragmentation Test | ≥ 40 particles in 25cm² EN12150-1 |
| Certification | EN12150, EN12600, CCC, SGS, SPF |
| Mechanical strength (N/mm²) | ≥45 Annealed |
| ≥120 Tempered, EN12150-1 | |
| Young modulus (GPa) | 73.1 |
| Poisson ratio | 0.2 |
| Knoop Hardness (kgf/mm²) | 470 |
| Density (kg/m³) | 2500 |
| Hemispherical emissivity (corrected) | 0.84 Between -18ºCand 66ºC |
| Expansion coefficient (/ºC) | 8.6×10-6 Between 25ºCand 300ºC |
| Specific heat | 0.205 Between 0ºC and 100ºC |
| Thermal conductivity (W/m/K) | 1 |
| Softening point (ºC) | 723 |
| Annealing point (ºC) | 544 |
| Strain point (ºC) | 504 |
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