China Chinese Manufacture Tempered Ultra-Clear Glass Manufacturer, Supplier

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China Chinese Manufacture Tempered Ultra-Clear Glass Manufacturer, Supplier

Basic Parameters
Glass Type: Ultra-low iron glass (Feâ‚‚Oâ‚ƒ â‰¤ 0.015%)
Standard Thickness: 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm (customizable up to 19mm) Â
Standard Sizes: Up to 3300mm Ã— 6000mm (custom cutting available) Â
Light Transmittance: â‰¥91.5% (at 6mm thickness) Â
Color Rendering: Neutral color tone with minimal green tint (CIE color coordinates: a* -0.5 to 0.5, b* 0.5 to 1.5) Â

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Product Description

Glass Specifications

High-Performance Optical & Physical Data

Optical Performance Visible Light Transmittance (VLT): 91.5%–92.5% (6mm)
Solar Heat Gain Coefficient (SHGC): 0.87–0.90
UV Transmittance: ≈75% (uncoated)
Reflectance: ≈8% (surface)

Physical Properties Density: 2.5 g/cm³
Thermal Expansion: 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

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 (thickness dependent radius)

Safety & Standards

Impact Resistance: EN 12600 (0.5J - 2.1J)

Safety Glazing: ANSI Z97.1 Standard

Fire Rating: Class A (EN 13501-1)

Compliance: RoHS, REACH compliant

Primary Applications

Architectural
Curtain walls, skylights, balustrades

Display & Retail
Museum showcases, retail displays

Solar Energy
PV module covers, solar collectors

Interior Design
Glass floors, premium furniture

Frequently Asked Questions

How does ultra-clear glass differ from regular float glass?

Ultra-clear glass has ≤0.015% iron oxide (compared to 0.1% in regular float glass), achieving >91.5% transmittance with minimal green hue.

Can it be used for laminated safety glass?

Yes, it is ideal for laminates where high clarity is critical, such as aquariums and bullet-resistant glass applications.

What is the maximum size available for production?

Standard sizes are available up to 3300mm × 2440mm; however, larger sizes can be accommodated through special production arrangements.

Is tempered ultra-clear glass stronger than regular tempered glass?

The physical strength is comparable (approximately 120 MPa surface compression), but the optical clarity is significantly superior.

What safety standards does this glass comply with?

It meets rigorous safety standards including EN 12600 for impact resistance and ANSI Z97.1 for safety glazing, as well as Class A fire ratings.

What types of coatings can be applied to ultra-clear glass?

It is fully compatible with various magnetron sputtering processes, including Low-E and Anti-Reflective (AR) coatings to enhance thermal or optical performance.