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KINGSTAR GLASS
ight Grey Float Glass | Body-Tinted Solar Control Architectural Glass from KINGSTAR BUILDING GLASS
KINGSTAR BUILDING GLASS Light Grey Float Glass is a premium body-tinted architectural glass manufactured by incorporating carefully selected metal oxides into the glass batch during the float production process. The result is a uniform, elegant light grey color that permeates the entire glass thickness—with color intensity that naturally increases as thickness increases. Offering a perfect balance between solar control performance and natural light transmission, light grey float glass reduces so
What is Light Grey Float Glass?
Light grey float glass is a body-tinted soda-lime silicate glass produced by adding metal oxides to the glass batch during the float manufacturing process. Unlike surface-coated glass, the color is integral to the entire glass thickness—ensuring that the aesthetic and solar control properties remain consistent even after cutting, edging, or processing. The light grey tint provides effective glare reduction and heat absorption while allowing higher visible light transmission than dark grey glass, making it a versatile choice for projects requiring a balance between daylighting and solar control.
The glass is produced in compliance with EN 572-1, EN 572-2, and EN 572-9 standards, and is CE-marked for use in building applications. KINGSTAR BUILDING GLASS light grey float glass is available in a full range of thicknesses and can be processed into tempered glass, laminated glass, insulating glass units, bent glass, coated glass, and mirrors.
Key Features
- Body-Tinted Color: Uniform light grey color throughout the glass thickness—color intensity increases with thickness
- Balanced Solar Control: Absorbs significant solar heat while maintaining 44% visible light transmission
- Effective Glare Reduction: Creates a comfortable indoor environment without excessive darkening
- Heat Absorption: High solar energy absorption minimizes heat entry into buildings
- UV Protection: Reduces harmful ultraviolet ray penetration
- Design Versatility: Available in thicknesses from 3mm to 19mm with fully customizable dimensions
- Processing Compatible: Can be tempered, laminated, heat-strengthened, bent, coated, silvered, sandblasted, or acid-etched
- Neutral Aesthetic: Light grey tint complements any architectural style without overpowering other design elements
Optical and Solar Performance
Performance Data - 6mm Light Grey Float Glass
| Parameter | Value |
|---|---|
| Light Transmittance (VLT) | 44% |
| External Light Reflectance | 5% |
| Solar Absorption | 32% |
| Direct Solar Transmission | 62% |
| Total Solar Transmission (SHGC) | 0.61 |
| Shading Coefficient | 0.70 |
| U-Value (W/m²K) | 5.8 |
Performance by Thickness
| Thickness | Light Transmittance (VLT) | External Reflection | Solar Absorption | SHGC |
|---|---|---|---|---|
| 4mm | 46% | 5% | 30% | 0.63 |
| 6mm | 44% | 5% | 32% | 0.61 |
| 8mm | 42% | 5% | 34% | 0.59 |
| 10mm | 40% | 5% | 36% | 0.57 |
Performance values are typical and may vary slightly by production batch. Thicker glass provides deeper color intensity and increased solar absorption.
Performance Comparison with Other Glass Types
Based on 6mm monolithic glass.
| Glass Type | Light Transmittance (VLT) | SHGC | U-Value (W/m²K) | Solar Control Performance |
|---|---|---|---|---|
| Clear Float | 88% | 0.81 | 5.8 | Low - minimal heat blockage |
| Light Grey Float | 44% | 0.61 | 5.8 | Balanced - glare reduction with natural light |
| Dark Grey Float | 15% | 0.53 | 5.8 | High - maximum glare and heat control |
| Green Float | 77% | 0.62 | 5.8 | Moderate - solar control with higher light |
| Bronze Float | 40% | 0.63 | 5.8 | Moderate - warm tint with solar control |
Light grey float glass delivers a balanced performance profile—offering significantly better solar control than clear glass while maintaining substantially higher visible light transmission than dark grey glass.
Technical Specifications
| Parameter | Specification |
|---|---|
| Glass Type | Body-Tinted Soda-Lime Silicate Float Glass |
| Thickness Range | 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 19mm |
| Maximum Size | Up to 3300mm × 6000mm |
| Color | Light Grey (uniform body tint, intensity increases with thickness) |
| Density | 2,500 kg/m³ (at 18°C) |
| Young's Modulus | 70,000 N/mm² |
| Hardness (Knoop) | HK₀.₁/₂₀ 6 GPa |
| Poisson's Ratio | 0.2 |
| Chemical Composition (by mass) | Silicon 32-35%, Calcium 3.5-10.1%, Sodium 7.4-11.9%, Magnesium 0-3.7%, Aluminum 0-1.6% |
| Available Configurations | Monolithic, Tempered (EN 12150), Laminated (EN ISO 12543), Insulating Glass Units (IGU), Heat-Strengthened, Bent, Coated, Mirrored |
| Processing Options | Cutting, Edge Grinding, Drilling, Notching, Tempering, Laminating, IGU Assembly, Bending, Coating, Silvering, Sandblasting, Acid-Etching |
| Standards Compliance | EN 572-1, EN 572-2, EN 572-9, CE Marked |
| Certifications | ISO 9001 |
| Lead Time | 10-20 days after order confirmation |
| Packaging | Interleaving paper, protective film, wooden crates |
Applications
- Building Facades and Curtain Walls: Light grey glass creates a sophisticated, modern exterior while providing effective solar control
- Commercial Buildings: Office towers, shopping centers, hotels, and corporate headquarters
- Windows and Doors: Residential and commercial fenestration with glare reduction
- Skylights and Overhead Glazing: Solar control for roof glazing applications with balanced daylight
- Balustrades and Railings: Elegant light grey balustrades for contemporary architecture
- Interior Partitions: Sophisticated grey partitions that maintain openness and light
- Furniture and Tabletops: Coffee tables, shelving, display cases, and decorative elements
- Home Appliances: Premium grey glass finishes for appliances
Why Choose KINGSTAR BUILDING GLASS Light Grey Float Glass?
- Balanced Solar Performance: SHGC of 0.61 and 44% VLT deliver effective solar control while maintaining natural daylight—ideal for projects requiring a balance between glare reduction and light transmission
- Body-Tinted Durability: Color permeates the entire glass thickness—will not fade, wear, or peel over time
- Sophisticated Aesthetic: Light grey tint creates a refined, neutral appearance that complements any architectural style
- Complete Processing Capabilities: Cutting, edging, tempering, laminating, IGU assembly, bending, and coating under one roof
- Full Thickness Range: Available from 3mm to 19mm—customizable to meet any project requirement
- International Standards Compliance: EN 572 certified and CE marked for building applications
- 10 Years of Industry Expertise: With a decade of dedicated experience in architectural glass manufacturing and export, KINGSTAR BUILDING GLASS has delivered light grey float glass solutions to projects across North America, Europe, the Middle East, and Southeast Asia. Our technical team provides expert guidance on glass selection, processing compatibility, and installation requirements.
- Quality Assurance: Strict quality control from raw material selection to final packaging—consistent color, uniform thickness, and reliable processing.
Enhance your next architectural project with the sophisticated balance of light grey float glass—effective solar control with natural daylight. Share your specifications with our technical team for custom glass solutions, including optical performance data, processing recommendations, and a competitive quote tailored to your project requirements.
Frequently Asked Questions (FAQ)
Q1: What is the difference between light grey float glass and dark grey float glass?
A: Light grey float glass has a lighter, more subtle tint that delivers 44% visible light transmission and an SHGC of 0.61, offering a balanced combination of natural daylight and solar control. Dark grey float glass has a much deeper tint with only 15% visible light transmission and an SHGC of 0.53, providing maximum glare reduction and heat control. The choice depends on your project requirements—light grey is ideal for spaces needing good natural light with moderate solar control, while dark grey is preferred for maximum solar performance in sun-exposed facades.
Q2: What is the SHGC and visible light transmittance of light grey float glass?
A: For 6mm light grey float glass, the SHGC (Solar Heat Gain Coefficient) is approximately 0.61, and the visible light transmittance (VLT) is approximately 44%. The external light reflectance is approximately 5%. As glass thickness increases, color intensity deepens, solar absorption increases, and both VLT and SHGC decrease slightly. These values make light grey float glass an excellent balanced option for projects requiring effective solar control with maintained daylighting.
Q3: Can light grey float glass be tempered or combined with other glass products?
A: Yes. KINGSTAR BUILDING GLASS light grey float glass is fully compatible with tempering (EN 12150), laminating (EN ISO 12543), and insulating glass unit fabrication. It can also be heat-strengthened, bent, coated, silvered, sandblasted, or acid-etched. When combined with Low-E coatings or used in insulating glass units with argon gas fills, light grey float glass can achieve significantly improved thermal performance (U-values below 1.0 W/m²K) while maintaining its sophisticated aesthetic and solar control properties.
Tinted Glass is produced by the float process with the addition of small
quantities of metaloxides to color the normal clear glass mix. This coloration is achieved
through adding metaloxides at the smelting stage. Addition of color does not affect the
basic properties of the glass, even though visible light reflectance will be slightly higher
than clear glass.
tinted float glass can reduce transmission of the sun's harmful rays by up to
80% thus minimizing fading to interior furnishings .
The comprehensive range of soft natural colors compliments and harmonizes with
modern building materials to provide an exciting and different look to new or existing buildings .
Could be easily cut, bent, insulated, lami nated, lacquered, coated, tempered or heat
strengthened and in addition can be silk-screened.
Colors : Bronze, Dark Bronze, Euro Grey,Dark Grey,French Green,Dark Green, Ford Blue, Dark Blue,Pink, etc.
Thickness : 3mm, 4mm, 5mm, 5.5mm, 6mm, 8mm, 10mm and 12mm, etc.
Sizes: 1524x2134mm, 1650x2140mm, 2140x3300mm, 2250x3210mm, 2250x3300mm, 2440x3300mm and 2140x3660mm, etc
Tinted Glass is intended for universal applications where an attractive appearance or basics olar control properties are required:
Commercial and civil buildings .
Interior decoration and show windows.
Automotive window shield
Kingstar Building glass: www.kingstar-glass.com
Kinstar Glassware (Professional Glassware & Kitchen Storage): www.kingstarliving.com
Kingstar Building glass:
Email: eric@kingstar-glass.com
Kingstar Glassware
(Professional Glassware & Kitchen Storage):
Email: info@kingstar-glass.com
Address: NO.101 SHENZHEN ROAD, QINGDAO, CHINA
© 2022 Qingdao Kingstar Glass Co., Ltd . All rights reserved Site Map | Technical Support:weidongli
Building glass:
Wechat/Whatsapp: 008618562697682
Email: eric@kingstar-glass.com
Glassware please visit: www.kingstarliving.com
Wechat/Whatsapp: 008615063091883
Email: info@kingstar-glass.com
Address: NO.101 SHENZHEN ROAD, QINGDAO, CHINA
© 2022 Qingdao Kingstar Glass Co., Ltd . All rights reserved Site Map
