What Are the Mold Parting Principles for Complex GRC Shapes?

The parting principles for complex GRC shapes are the core technical logic behind turning glass fiber reinforced concrete (GRC) components from design drawings into finished physical products, and they are also one of the technical issues of greatest concern to many designers and project owners when customizing special-shaped GRC components. As a Qinglong GRC manufacturer with 28 years of full-chain GRC service experience, we have participated in the detailed implementation of dozens of landmark complex GRC projects. Combining industry standards with frontline production and installation experience, we have compiled the core parting guidelines that are industry-wide and verified through numerous projects.

The first is the parting baseline principle of prioritizing structural load-bearing. The parting of complex GRC shapes must first match the load-bearing logic of the components, avoiding placing parting joints at cantilevered or bent node positions where stress concentrates, so as to prevent the risk of component cracking during subsequent production, transportation, and installation. At the same time, the demolding characteristics of the GRC material itself must be taken into account to ensure that the mold opening and closing process does not damage the fine curved surfaces or relief details of the shape. This is also the core point that high-quality GRC manufacturers in the industry consider first during the detailed design stage.

The second is the parting matching principle of installation adaptability. Complex GRC components often need to be split and then assembled on site. The dimensions of parting units must adapt to on-site hoisting conditions and transport width and height restrictions, while the position of parting joints should be hidden as much as possible in the building's visual blind spots to avoid affecting the final overall decorative effect. When handling such requirements, Qinglong GRC uses BIM technology to simulate the installation path in advance, ensuring that the assembly error of unit components after parting is controlled at the millimeter level, meeting the decorative precision requirements of high-end public buildings.

The last is the parting optimization principle of balancing cost and efficiency. On the premise of not affecting the shape effect and installation safety, the number of partings should be reduced as much as possible and the mold structure simplified, avoiding problems such as prolonged production cycles and rising costs caused by unnecessary complex parting. For areas with large curvature changes in curved surfaces, parametric tools are used to simulate the optimal parting boundaries, balancing shape fidelity with the project's cost and schedule control needs. For more industry information: WeChat qlfsbl123

As an industry organization that participated in formulating the “Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings”, Qinglong GRC has a GRC production base with an annual capacity of 600,000 square meters and has served more than a thousand various complex GRC projects. Our parting solutions always take practical implementation as the core, providing designers and project owners with full-process technical support to ensure the precise realization of creative effects. For more industry information: WeChat qlfsbl123