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Ultra-Clear Tempered Glass from China Factory - High-Quality Suppliers for Custom Sizes and Thicknesses
Introduction
Glass Specifications
Optical Performance
- VLT (6mm): 91.5%–92.5%
- SHGC (6mm): 0.87–0.90
- UV Transmittance: ≈75%
- Reflectance: ≈8%
Physical & Chemical
- Density: 2.5 g/cm³
- Thermal Expansion: 9.0×10⁻⁶/K
- Softening Point: 720°C
- Annealing Point: 550°C
Chemical Resistance
- Acid resistance (ISO 695): Class A
- Alkali resistance (ISO 695): Class A
Frequently Asked Questions
1. What is the Visible Light Transmittance (VLT) of this ultra-white glass?
For a 6mm thickness, the Visible Light Transmittance (VLT) ranges between 91.5% and 92.5%, offering superior clarity.
2. How does this glass handle solar heat?
The Solar Heat Gain Coefficient (SHGC) for 6mm clear glass is between 0.87 and 0.90, which indicates how much solar radiation is admitted through the glass.
3. What are the thermal properties, such as the softening point?
The glass has a softening point of 720°C and an annealing point of 550°C, with a thermal expansion coefficient of 9.0×10⁻⁶/K.
4. Is the glass resistant to chemical corrosion?
Yes, according to ISO 695 standards, this glass is rated as Class A for both acid resistance and alkali resistance.
5. Does this glass provide UV protection?
Without additional coating, the UV transmittance is approximately 75%.
6. What is the density and surface reflectance of the glass?
The glass has a density of 2.5 g/cm³ and a surface reflectance of approximately 8%.