Project location：
Luoyang, Henan Province
Glass Configuration:
8mm Ultra-Clear Heat-Strengthened Glass + 2.28mm PVB Interlayer + 8mm Ultra-Clear Low-E Heat-Strengthened Glass + 12A (Air Gap) + 8mm Ultra-Clear Heat-Strengthened Glass + 2.28mm PVB Interlayer + 8mm Ultra-Clear Heat-Strengthened Laminated Insulated Glass Unit (IGU)
Maximum Glass Size:
9288mm*2076mm
At Zhongbo Glass, we believe that museums are where history meets light — and the glass that encloses them must honor both. The Sui Tang Grand Canal Museum in Luoyang is a cultural landmark that celebrates the ancient Grand Canal’s legacy, and its architecture demands a facade of immense scale, optical purity, and energy-conscious design. We were selected as the sole glass manufacturer to deliver the museum’s signature glazing: jumbo heat-strengthened laminated insulating glass units that stretch over 9 meters in a single pane, providing an uninterrupted visual connection between the museum’s interior treasures and the surrounding landscape.
The project required glass that avoids the optical distortion common in fully tempered panels — essential for a museum where visual clarity is paramount. Our solution used heat-strengthened glass throughout, bonded with PVB interlayers and equipped with a high-performance Low-E coating and insulating air cavity. For Zhongbo Glass, this project is a proud home-province achievement: a museum in Luoyang, clad in glass made by Henan hands, to the highest global standards.
The museum’s glazing specification called for a high-performance insulating glass unit that balances safety, energy efficiency, and flawless transparency. We supplied a symmetrically engineered configuration:
8mm Ultra-Clear Heat-Strengthened + 2.28mm PVB + 8mm Ultra-Clear Low-E Heat-Strengthened / 12mm Air Cavity / 8mm Ultra-Clear Heat-Strengthened + 2.28mm PVB + 8mm Ultra-Clear Heat-Strengthened — Laminated Insulating Glass
Every element was chosen for its contribution to the museum environment:
All Heat-Strengthened Glass: Every ply is heat-strengthened (semi-tempered) with a surface compression between 24 and 52 MPa. This process imparts twice the strength of annealed glass while virtually eliminating the roller-wave distortion and spontaneous breakage risk of fully tempered glass. For a museum, where visitors expect perfectly true views of exhibits and the outdoors, this optical flatness is non-negotiable.
Ultra-Clear (Low-Iron) Glass Throughout: We used premium low-iron glass for every ply. This eliminates the greenish tint of standard float glass and delivers exceptional light transmission, so the museum’s interiors are bathed in natural daylight with accurate color rendering.
Outer Laminated Panel: The 8mm heat-strengthened outer glass is bonded with a 2.28mm PVB interlayer to an 8mm Low-E heat-strengthened glass. The Low-E coating on the #3 surface reflects long-wave infrared heat while allowing visible light to pass — reducing solar heat gain without darkening the glass.
12mm Air Cavity: The sealed air space provides effective thermal insulation, helping maintain a stable interior climate for the preservation of artifacts and reducing the museum’s energy demand.
Inner Laminated Panel: The interior-facing panel is a mirror laminate of two 8mm heat-strengthened plies bonded with 2.28mm PVB. This provides a robust safety barrier and excellent acoustic dampening, shielding the museum from external noise.
2.28mm PVB Interlayers: The thick PVB films provide reliable post-breakage glass retention and UV filtering, protecting sensitive exhibits from ultraviolet damage.
The maximum glass panel size reached an extraordinary 9,288mm in length by 2,076mm in width — a single insulating glass unit spanning over 9.2 meters and covering more than 19 square meters. This towering glass wall creates a column-free transparent facade that allows visitors to experience the museum’s grand volumes and the interplay of light without visual interruption.
Producing a heat-strengthened laminated IGU at this scale is a rare capability. Heat-strengthened glass is more challenging to process in jumbo sizes than fully tempered glass, requiring exceptionally uniform furnace control to achieve consistent surface stress without distortion. At Zhongbo Glass, 9.2-meter heat-strengthened IGUs are a proven specialty, and delivering them for a museum of this cultural significance is a point of great pride.
Heat-strengthening 8mm ultra-clear glass at lengths over 9 meters demands a furnace capable of maintaining temperature uniformity within fractions of a degree across the entire sheet. Our super-jumbo flat tempering furnace was programmed with proprietary heat-strengthening recipes for low-iron glass, producing plies with perfectly controlled surface compression (24-52 MPa) and minimal roller wave. All plies were matched to ensure optical consistency across the laminate — critical for a museum facade where any distortion would be glaringly apparent.
Laminating two heat-strengthened plies with 2.28mm PVB at this scale requires meticulous control of temperature, humidity, and de-airing. PVB is hygroscopic and must be handled in a climate-controlled cleanroom to prevent moisture-related defects. Our process included:
Cleanroom layup with strictly controlled temperature and relative humidity.
Nip-roll pre-pressing to remove the bulk of trapped air.
Autoclave cycle with precisely calibrated heat and pressure to achieve a flawless, bubble-free bond across the entire 9.2-meter surface.
Both the outer and inner laminated panels were produced with identical quality, ensuring perfect symmetry in the finished IGU.
The Low-E coating was applied to the #3 surface of the outer laminate — a heat-strengthened, not tempered, substrate. This required careful handling to avoid coating damage during lamination and IGU assembly. Our automated edge deletion and clean handling protocols preserved the coating’s emissivity, ensuring the museum benefits from the full solar control performance.
Coupling two massive PVB laminates into a perfectly sealed IGU with a uniform 12mm cavity is a task that demands laser-guided precision. We used synchronized vacuum lifting systems and robotic dual-seal application to create a durable, hermetically sealed unit. Each panel was individually tested for dew point and seal integrity, ensuring long-term resistance to condensation and thermal performance loss.
The Sui Tang Grand Canal Museum is located in Luoyang, within our home province of Henan. This proximity gave us a significant advantage: shorter, safer transport routes, reduced handling, and the ability to provide rapid on-site support. We delivered each 9.2-meter panel in custom vertical transport stillages, with our local team coordinating directly with the installation contractor. For Zhongbo Glass, contributing to a Henan cultural landmark is both a responsibility and an honor.
The Sui Tang Grand Canal Museum project exemplifies the capabilities that make Zhongbo Glass the partner of choice for prestigious cultural and architectural projects:
Jumbo Heat-Strengthened Glass Mastery: We are one of the few manufacturers capable of producing heat-strengthened laminated IGUs exceeding 9 meters. Our furnace technology and process know-how deliver the optical flatness that museums and high-end architecture demand.
Full-Spectrum Lamination: While we are renowned for our SGP structural laminates, this project demonstrates our equal expertise with PVB interlayers for safety, UV protection, and acoustic performance.
Low-E IGU Integration: We handle Low-E coatings on heat-strengthened glass with the care and precision required to maintain performance, ensuring our IGUs deliver real energy savings.
Ultra-Clear Quality: Our strict low-iron glass sourcing and inspection protocols ensure consistent, brilliant transparency — essential for museum environments where color fidelity matters.
Henan Roots, Global Standards: Located in Henan, we are deeply invested in serving projects in our home province with the same advanced manufacturing technology we export worldwide. Our local presence means faster delivery, lower costs, and hands-on project support.
Proven Landmark Portfolio: The Sui Tang Grand Canal Museum joins our impressive portfolio of cultural and public projects, including the Peony Painting at Luoyang Peony Square (9m silk-screened IGU), the Xi’an Silk Road Convention Center (multi-ply fins), and the Baiyun International Conference Center (self-cleaning glass). Our track record in delivering complex, jumbo glass for China’s most significant public buildings is unmatched.
The Sui Tang Grand Canal Museum now welcomes visitors through a facade of extraordinary transparency and scale — clad in 9,288mm × 2,076mm heat-strengthened PVB laminated insulating glass units manufactured by Zhongbo Glass. This project demonstrates our ability to deliver optically flawless, energy-efficient jumbo glass that meets the exacting standards of a world-class museum. For Zhongbo Glass, this Luoyang landmark is more than a project; it is a statement that Henan-made glass stands among the finest in the world.
Contact Zhongbo Glass today to discuss your next museum, cultural center, or large-scale public project. From heat-strengthened optical perfection to structural SGP laminates and decorative glass, our engineering team in Henan is ready to partner with you to realize your vision.
