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China Suppliers Factory for Tempered Ultra-Clear Glass - Ultra-Low Iron Glass with Customizable Thickness and Sizes
Introduction
Glass Specifications
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Optical Performance
- Visible Light Transmittance (VLT) 91.5%–92.5% (6mm)
- Solar Heat Gain Coefficient (SHGC) 0.87–0.90 (6mm)
- UV Transmittance ≈75% (No coating)
- Reflectance ≈8% (Surface)
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Physical & Chemical Properties
- Density 2.5 g/cm³
- Thermal Expansion 9.0×10⁻⁶/K
- Softening Point 720°C
- Annealing Point 550°C
- Acid Resistance (ISO 695) Class A
- Alkali Resistance (ISO 695) Class A
Frequently Asked Questions
What is the light transmittance of this ultra-white glass?
The Visible Light Transmittance (VLT) for a 6mm thickness ranges between 91.5% and 92.5%, providing exceptional clarity compared to standard glass.
How does the glass perform under high temperatures?
This 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 (20–300°C).
Is the glass resistant to chemical corrosion?
Yes, it achieved Class A ratings for both acid and alkali resistance according to ISO 695 standards, making it highly durable in various environments.
What is the UV transmittance of the glass?
Without additional coatings, the UV transmittance is approximately 75%, allowing a significant portion of UV light to pass through.
What is the density and surface reflectance of the material?
The glass has a density of 2.5 g/cm³ and a surface reflectance of approximately 8%.
What is the SHGC value for 6mm clear glass?
The Solar Heat Gain Coefficient (SHGC) for 6mm clear glass is between 0.87 and 0.90.