Project Overview
When the Foshan Vientiane City Market Center envisioned a grand, flowing glass facade that would become the signature architectural feature of this premier retail destination, the design called for glass panels of extraordinary length and graceful curvature. Zhongbo Glass was chosen as the exclusive manufacturer to bring this sweeping vision to life. We engineered and delivered jumbo curved triple-ply SGP laminated glass panels that stretch over 10.7 meters in a single piece — a feat of glass engineering that stands among the longest curved laminates ever produced.
The Market Center required a frameless, transparent envelope that blends structural safety with uncompromising aesthetics. Our solution: a monolithic, three-layer low-iron curved laminate bonded with two SentryGlas® Plus (SGP) interlayers. The result is an uninterrupted ribbon of glass that wraps around the building, offering visitors panoramic views and flooding the interior atrium with natural light. This project showcases Zhongbo Glass’s unmatched ability to combine extreme length, precise curvature, and multi-ply lamination in a single, flawless glass panel.
Glass Configuration — Curved, Clear, and Structurally Superior
The facade specification demanded a glass make-up that is simultaneously a protective barrier, a structural element, and a work of art. We fabricated every panel to the following exacting specification:
12mm Low-Iron Curved Tempered Glass + 2.28mm SGP Interlayer + 12mm Low-Iron Curved Tempered Glass + 2.28mm SGP Interlayer + 12mm Low-Iron Curved Tempered Glass — Fully Laminated
This composition is a masterpiece of glass engineering:
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All Low-Iron (Ultra-Clear) Glass: All three 12mm plies are fabricated from premium low-iron glass, producing a brilliant, neutral transparency completely free of the greenish tint common in standard float glass. The facade appears crystal-clear, accurately rendering colors inside and out.
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Curved Tempered for Every Ply: Each glass ply is individually hot-bent and fully tempered to an identical curvature. This ensures perfect inter-ply matching and provides surface compression above 69 MPa, giving the glass four to five times the strength of annealed glass.
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Dual 2.28mm SGP Interlayers: Two layers of SentryGlas® Plus ionoplast interlayer bond the three glass sheets into a single structural composite. SGP offers five times the tear strength and 100 times the stiffness of conventional PVB. In the unlikely event of all three plies breaking, the SGP interlayers hold the entire panel intact, preventing any glass fall-out — absolutely critical for overhead and high-traffic public areas.
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Monolithic Laminate Design: As a pure laminated glass unit (not an insulating unit), the panel achieves a thickness exceeding 38mm while maintaining full transparency. The exposed edges are precision-polished, showcasing the glass layering and adding a refined, high-end finish.
The Dimension That Defines Us: 10,705mm × 1,610mm
The maximum glass panel size for this project reached an extraordinary 10,705mm in length by 1,610mm in width. To grasp the magnitude:
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A single panel spans over 10.7 meters — longer than many city buses.
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With a width of only 1,610mm, the panel has an extreme aspect ratio, making it exceptionally slender and demanding absolute precision during bending and lamination.
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Each finished triple-laminate weighs several tonnes, requiring synchronized handling throughout production and logistics.
Producing a curved triple-ply SGP laminate at this length is a challenge that pushes every element of our factory to its engineering limits. At Zhongbo Glass, we have purpose-built our facility for exactly this category of super-jumbo curved glass.
Mastering the Manufacturing Challenge — Zhongbo Glass’s Technical Prowess
1. Precision Bending and Tempering Across 10.7 Meters
Bending and tempering a 10,705mm long, 1,610mm wide sheet of 12mm low-iron glass into a consistent arc is a rare industrial capability. Our super-jumbo curved tempering furnace operates with multi-zone heating control and a flexible bending mechanism calibrated to maintain radius tolerance over the entire length. We successfully produced all three plies with matching curvature, optical flatness, and zero roller-wave distortion — a requirement made harder by the ultra-clear glass’s low iron content, which alters thermal absorption characteristics.
2. Triple-Ply Curved SGP Lamination
Laminating three massive curved plies with two stiff SGP interlayers is far more complex than flat lamination. SGP’s high modulus demands perfectly shaped glass and precise process control to avoid bubbles, edge de-lamination, or optical haze. Our process includes:
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CNC-cut SGP interlayers pre-shaped to the exact curvature.
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A dust-free Class 1 cleanroom for layup.
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A multi-stage vacuum bag de-airing system that accommodates the curved shape.
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A massive autoclave with customized heat and pressure profiles that guarantee full adhesion across all 10.7 meters, edge to edge.
The finished laminate is crystal clear, perfectly curved, and structurally monolithic.
3. Maintaining a Slender Profile Without Twist
With an aspect ratio exceeding 6:1, the curved panel is highly susceptible to twist during lamination and handling. We engineered specialized curved support jigs and lifting frames that cradle the glass along its full length, preventing any torque or deformation. In-process laser alignment and 3D scanning verified curvature accuracy to sub-millimeter tolerances before shipment.
4. Logistics for 10.7-Meter Curved Glass
Transporting a 10.7-meter curved laminate from our factory in Henan to the construction site in Foshan is a supply chain operation of the highest order. We designed bespoke curved transport stillages that mirror the glass radius, providing continuous support. Air-ride trailers equipped with vibration monitoring, combined with carefully planned night convoys, ensured every panel arrived in flawless condition — free of scratches, edge damage, or stress marks.
Why Zhongbo Glass? — The Uncontested Leader in Jumbo Curved Glass
The Foshan Vientiane City Market Center project exemplifies the capabilities that make Zhongbo Glass the first choice for the world’s most ambitious curved glass designs:
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World-Leading Curved Glass Capacity: Our curved tempering furnace processes glass up to 12,000mm in length, enabling us to produce curved panels at a scale that most manufacturers cannot approach. Whether a gentle facade curve or a tight radius, we deliver precision every time.
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Multi-Ply SGP Lamination Excellence: We are specialists in SGP technology, operating dedicated cleanroom environments and autoclaves that can laminate up to four plies of curved glass with multiple SGP interlayers. Our SGP laminates meet the strictest global safety codes for structural and overhead glazing.
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Low-Iron Glass Mastery: We thoroughly understand the processing nuances of ultra-clear glass. Our rigorous material selection and inspection protocols ensure every sheet is free from nickel sulfide inclusions and maintains consistent aesthetic quality.
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End-to-End Technical Partnership: Our in-house engineering team provides glass strength calculations, curvature optimization, and dedicated logistics planning. We collaborate from design to installation to ensure your vision becomes reality without compromise.
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Proven Mega-Project Portfolio: Foshan Vientiane City joins our growing list of landmark curved glass projects, including the 7.6-meter curved Tencent Cloud Tower and the curved multi-ply decorative laminates for Xiaomi Home Nanjing. Our flat glass credentials are equally dominant, with records like the 13.5-meter Huawei R&D Center panels. No other manufacturer offers this breadth of extreme-format expertise.
Conclusion
The Foshan Vientiane City Market Center now features a breathtaking curved glass facade that redefines the retail experience — thanks to Zhongbo Glass’s ability to manufacture 10,705mm × 1,610mm curved triple-ply SGP laminated glass panels. This project demonstrates that even the longest, most slender curved laminates are within reach when you partner with the right glass fabricator. For Zhongbo Glass, pushing the boundaries of size, curvature, and lamination complexity is our daily mission.
Contact Zhongbo Glass today to discuss your next curved glass facade. From 3 meters to over 10 meters, single-ply to multi-ply laminates, we are ready to engineer the curved glass solution that defines your project’s identity.