Qingdao Migo Glass Co., Ltd. is one of the most reliable manufacturers and suppliers of 4mm toughened ultra clear (low iron) float glass for glass greenhouse in China. With abundant experience, we warmly welcome you to wholesale high-grade 4mm toughened ultra clear (low iron) float glass for glass greenhouse in stock here from our factory. If you have any enquiry about custom service, please feel free to email us.
If you want to buy discount and quality 4mm toughened ultra clear (low iron) float glass for glass greenhouse made in China, you can contact Migo Glass which is one of the best manufacturers and suppliers of 4mm toughened ultra clear (low iron) float glass for glass greenhouse in China. We have a professional factory at your service, please feel free to wholesale cheap and customized glass products in stock at a reasonable price with us.
Product Description
Ultra Clear (Low Iron) Float Glass for Glass Greenhouse Roofs and Side Walls
Thickness: 4mm
Glass Grade: Fully-Tempered Glass
Applications: Roofs of greenhouse projects
Side walls of greenhouse projects
Glass Features
1. MIGO Ultra Clear Float Glass is a kind of extra clear low iron float glass with light transmission higher
than 91%. Its high performance stability and good processability make it one of the best choices as the glass greenhouse roofs and walls. .
2. MIGO Ultra Clear Float Glass offers superior solar energy transmittance and is stable under solar
radiation. It also survives harsh environmental conditions and protects your crops and flowers from heavy
wind, rainstorm, snowstorm, hail, tornado, and etc.
3. MIGO Ultra Clear Float Glass is fully tempered as per EN12150, 4-5 times stronger than annealed glass with
the same thickness.
4. Anti-reflective coating can be deposited on one or two glass surfaces to increase light transmittance by ≥ 2%.
Main Characteristics
| Light Transmittance | ≥ 91%; |
| Solar Transmittance | ≥ 91% |
| Iron Content (Fe2O3) | ≤120ppm |
| Specific weight | 10 kg/m² |
| 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 Characteristics
| 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 |
Thermal Characteristics
| 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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