ultra white glass
Chinese Manufacture Tempered Ultra-Clear Glass
Glass SpecificationsIntroduction
Optical Performance
Visible Light Transmittance (VLT): 91.5%–92.5% (6mm thickness)
Solar Heat Gain Coefficient (SHGC): 0.87–0.90 (6mm clear glass)
UV Transmittance: ≈75% (without coating)
Reflectance: ≈8% (surface reflection)
Physical & Chemical Properties
Density: 2.5 g/cm³
Thermal Expansion Coefficient: 9.0×10⁻⁶/K (20–300°C)
Softening Point: 720°C
Annealing Point: 550°C
Chemical Resistance:
Acid resistance (ISO 695): Class A
Alkali resistance (ISO 695): Class A
Mechanical Strength
Modulus of Elasticity: 72 GPa
Poisson’s Ratio: 0.23
Surface Hardness: Mohs 6 (equivalent to standard float glass)
Impact Resistance:
2mm: 0.5 J (EN 12600)
6mm: 2.1 J (EN 12600)
Processing Compatibility
Tempering: Fully temperable (meets EN 12150)
Laminating: Compatible with PVB/EVA/SGP interlayers
Coating: Suitable for magnetron sputtering (Low-E, AR coatings)
Bending: Heat-bendable (minimum radius depends on thickness)
Safety & Certifications
Safety Standards:
EN 12600 (impact resistance)
ANSI Z97.1 (safety glazing)
Fire Rating: Class A (EN 13501-1)
Environmental Certifications: RoHS, REACH compliant
Applications
Architectural: Curtain walls, skylights, balustrades
Display: Museum showcases, retail displays
Solar Energy: PV module covers, solar collectors
High-End Interiors: Glass floors, premium furniture
Modulus of Elasticity: 72 GPa
Poisson’s Ratio: 0.23
Surface Hardness: Mohs 6 (equivalent to standard float glass)
Impact Resistance:
2mm: 0.5 J (EN 12600)
6mm: 2.1 J (EN 12600)
Processing Compatibility
Tempering: Fully temperable (meets EN 12150)
Laminating: Compatible with PVB/EVA/SGP interlayers
Coating: Suitable for magnetron sputtering (Low-E, AR coatings)
Bending: Heat-bendable (minimum radius depends on thickness)
Safety & Certifications
Safety Standards:
EN 12600 (impact resistance)
ANSI Z97.1 (safety glazing)
Fire Rating: Class A (EN 13501-1)
Environmental Certifications: RoHS, REACH compliant
Applications
Architectural: Curtain walls, skylights, balustrades
Display: Museum showcases, retail displays
Solar Energy: PV module covers, solar collectors
High-End Interiors: Glass floors, premium furniture
Q: How does ultra-clear glass differ from regular float glass?
A: Ultra-clear glass has ≤0.015% iron oxide (vs. 0.1% in float glass), achieving >91.5% transmittance with minimal green hue.
Q: Can it be used for laminated safety glass?
A: Yes, ideal for laminates where clarity is critical (e.g., aquariums, bullet-resistant glass).
Q: What’s the maximum size available?
A: Up to 3300mm × 2440mm; larger sizes require special production arrangements.
Q: Is tempered ultra-clear glass stronger than regular tempered glass?
A: Strength is comparable (120 MPa surface compression), but optical clarity is superior.
A: Ultra-clear glass has ≤0.015% iron oxide (vs. 0.1% in float glass), achieving >91.5% transmittance with minimal green hue.
Q: Can it be used for laminated safety glass?
A: Yes, ideal for laminates where clarity is critical (e.g., aquariums, bullet-resistant glass).
Q: What’s the maximum size available?
A: Up to 3300mm × 2440mm; larger sizes require special production arrangements.
Q: Is tempered ultra-clear glass stronger than regular tempered glass?
A: Strength is comparable (120 MPa surface compression), but optical clarity is superior.