Qingdao Migo Glass Co., Ltd. is one of the most reliable manufacturers and suppliers of clear float solar glass in China. With abundant experience, we warmly welcome you to wholesale high-grade clear float solar glass in stock here from our factory. If you have any enquiry about custom service, please feel free to email us.
Products Description
MIGO Clear Float Solar Glass is a tempered glass product designed for solar thermal collectors, photovoltaic modules and greenhouse glazing applications.
Manufactured from high-quality clear float glass and processed through controlled heating and cooling, it offers improved mechanical strength, good optical transparency and safer breakage characteristics compared with ordinary annealed glass.
Although its light transmittance is slightly lower than ultra-clear low-iron solar glass, clear float solar glass provides a more economical alternative for projects where extremely high light transmission is not required.
MIGO supplies 2.8mm, 3.2mm and 4.0mm glass with customized dimensions for solar equipment manufacturers and greenhouse projects.
Product Specifications
| Item | Specification |
|---|---|
| Product Name | Clear Float Solar Glass |
| Thickness | 2.8mm / 3.2mm / 4.0mm |
| Thickness Tolerance | ±0.2mm |
| Dimension Tolerance | ±1.0mm |
| Diagonal Difference | ≤0.1–0.2% |
| Overall Bow / Warp | <0.2% |
| Local Warp | ≤0.3mm / 300mm |
| Edge Processing | According to Project Requirements |
| Fragmentation Test | ≥40 Particles / 25cm² (Supplier Specification) |
| Applications | Solar Collectors / PV Modules / Greenhouses |
Main Characteristics
Optical Performance
| Property | 3.2mm Glass | 4.0mm Glass |
|---|---|---|
| Light Transmittance | 90.17% | 89.82% |
| Solar Transmittance | 84.67% | 83.04% |
| Specific Weight | 8 kg/m² | 10 kg/m² |
Optical values are based on the supplied product data. Performance for 2.8mm glass should be confirmed separately.
Mechanical Characteristics
| Property | Specification |
|---|---|
| Mechanical Strength – Annealed | ≥45 N/mm² |
| Mechanical Strength – Tempered | ≥120 N/mm² |
| Young's Modulus | 73.1 GPa |
| Poisson's Ratio | 0.2 |
| Knoop Hardness | 470 kgf/mm² |
| Density | 2500 kg/m³ |
Thermal Characteristics
| Property | Specification |
|---|---|
| Hemispherical Emissivity | 0.84 (-18°C to 66°C) |
| Thermal Expansion Coefficient | 8.6 × 10⁻⁶ /°C (25–300°C) |
| Thermal Conductivity | 1 W/m·K |
| Softening Point | 723°C |
| Annealing Point | 544°C |
| Strain Point | 504°C |
These physical properties are reference values from the supplied technical information and should be checked against applicable test reports.
Applications
- Solar Thermal Collectors: Cover glass for solar water heating and thermal energy systems.
- Photovoltaic Modules: Glass backsheet for compatible glass-glass PV module designs.
- Greenhouse Roofs: Transparent glazing for horticultural greenhouse structures.
- Greenhouse Side Walls: Clear glass panels for natural daylight transmission.
FAQ
Q1: What is the difference between clear float solar glass and low-iron solar glass?
Clear float solar glass typically has slightly lower light transmission but offers a more economical material option. Low-iron glass is preferred when higher optical transparency is a priority.
Q2: Can clear float solar glass be used in glass-glass PV modules?
Yes, it can be considered as a glass backsheet for compatible module designs. The required glass strength, thickness and construction should be confirmed by the module manufacturer.
Q3: Can MIGO provide customized solar glass dimensions?
Yes. Glass dimensions can be customized according to solar equipment drawings and project requirements.
Q4: What information is needed for a quotation?
Please provide the glass thickness, required dimensions, processing specifications, order quantity and delivery destination.
Hot Tags: clear float solar glass, China clear float solar glass manufacturers, suppliers, factory, Thin Glass Back sheet for Glass Glass Modules, 3 2mm Tempered Ultra Clear Solar Glass with En12150, 3mm Solar Glass Back Sheets, Extra White Float Solar Thermal Glass, 3 2mm Ultra Clear Solar Glass, Transparent Float Solar Glass
