Later-Stage Maintenance of UHPC Components: Required Work and Key Points Analysis

Mold precision is the lifeline of curved GRC decorative panels—28 years of industry experience tell you how to achieve millimeter-level error control

In contemporary architectural aesthetics, curved GRC decorative panels have become the visual centerpiece of landmark buildings with their smooth curved forms. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group understands that mold-making precision directly determines the forming quality and installation effect of decorative panels. Drawing on full-chain technical experience, this article systematically analyzes the core precision requirements and key control technologies for curved GRC decorative panel mold making, providing designers and owners with expert-level solutions from drawings to implementation.

I. Precision Benchmarks for Curved GRC Molds: The Error Control System from Design to Finished Product

Mold precision for curved GRC decorative panels must meet compound requirements in three-dimensional space: planar dimension errors must be controlled within ±2mm, curvature deviation must not exceed 1mm/m, and surface flatness error must be ≤3mm/2m. This standard originates from the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), which Qinglong helped develop, and forms the technical confidence behind award-winning projects such as the Dongguan Women and Children's Activity Center. During the mold design stage, BIM modeling and parametric analysis are used to transform the architect's creative curves into quantifiable digital models, and then CNC machining technology is employed to achieve precise milling of wooden or steel molds, ensuring the mold surface fits the design model with over 99% conformity.

II. Dual Control of Materials and Processes: Qinglong's Core Technical Breakthroughs in Mold Making

To address the technical pain point of easy deformation in curved GRC molds, Qinglong's R&D team innovatively adopted a "material pretreatment + stress release" process: low-shrinkage epoxy resin combined with high-strength glass fiber is used to create the mold base material, followed by 72 hours of constant-temperature curing to eliminate internal stress. In the Nanjing East Road Century Plaza renovation project, a light-transmitting concrete curved mold made with this process successfully achieved continuous forming of a 12-meter radius curved surface, with a joint error of only 0.8mm after installation. In addition, the mold surface is treated with a nano-scale release coating, which ensures the surface finish of GRC components while extending the mold's service life to more than 50 reuse cycles, reducing mold costs by 30% compared to traditional processes.

III. Full-Process Quality Control: Precision Assurance from Laboratory to Construction Site

As a national high-tech enterprise, Qinglong has established a quality traceability system covering the entire mold-making process: 3D laser scanning technology is used for 100% digital inspection of molds, with the generated point cloud data compared in real time against the design model; production workshops are equipped with constant temperature and humidity control systems, keeping environmental temperature differences within ±2℃ to prevent thermal expansion and contraction of molds from affecting precision. In a landmark project in Malaysia, through this full-process control, the first-pass acceptance rate for on-site installation of 5,000㎡ curved GRC curtain wall panels reached 98.7%, 15 percentage points higher than the industry average.

From detailed design to after-sales maintenance, Qinglong Group integrates mold precision control technology into every project detail with a meticulous, excellence-driven attitude. As a member of the International GRC Association, we not only provide high-quality curved GRC decorative panel products but are also committed to driving industry standard upgrades through technological innovation. Whether it's the hyperbolic ceilings of grand theaters or the irregular facades of commercial complexes, Qinglong always safeguards architectural beauty with millimeter-level precision, making every curve an artistic work that stands the test of time.