What Are the Differences Between GRC Products with Different Formulas? How to Choose

In the field of architectural decoration materials, GRC (Glass Fiber Reinforced Concrete) has become the preferred material for many high-end construction projects thanks to its lightweight, high-strength, and flexible shaping characteristics. However, GRC products with different formulations vary significantly in performance and applicable scenarios. How to scientifically select a GRC formulation that matches project requirements is a core concern for designers, owners, and purchasers. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will analyze the selection logic for you, starting from the core elements of material formulations.

### I. The Core Source of GRC Formulation Differences: Raw Materials and Mix Ratio Science

Formulation differences in GRC products are mainly reflected in the selection and proportioning of three core components: glass fiber, cement-based materials, and additives. High-quality GRC formulations typically use high alkali-resistant glass fiber (e.g., with zirconia content ≥16%), combined with rapid-hardening sulphoaluminate cement or ordinary Portland cement, and optimize workability through additives such as high-efficiency water reducers and water-retaining agents. For example, for curtain wall components requiring high strength, the glass fiber content in Qinglong's GRC formulation can reach 5%-8%, with flexural strength ≥20MPa; while decorative molding products can appropriately reduce fiber content and enhance surface texture by adjusting the sand-cement ratio. The technical accumulation of different manufacturers in formulation development directly determines product durability and stability. For instance, the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), which Qinglong participated in drafting, sets strict specifications for key formulation parameters.

### II. Performance Differentiation Caused by Formulation Differences: Comparison Across Three Dimensions

1. **Mechanical properties**: High-strength formulation GRC (such as Qinglong UHPC composite GRC) can achieve compressive strength above 80MPa, suitable for structural components bearing heavy loads; conventional formulations focus on decorative functions, where flexural strength ≥12MPa meets exterior wall cladding panel requirements. 2. **Weather resistance**: Cold northern regions require freeze-thaw resistant formulations (strength loss ≤10% after 200 freeze-thaw cycles), while coastal projects need to focus on salt spray resistant formulations. Qinglong optimizes pore structure by adding mineral admixtures, achieving salt spray resistance of over 5,000 hours. 3. **Molding process adaptability**: Spray-up molding formulations have lower fluidity, making them suitable for complex shapes; premix casting formulations offer good fluidity and higher production efficiency. For more industry information: +WeChat qlfsbl123

### III. Four Principles for Scientifically Selecting GRC Formulations

**1. Match the project environment**: Municipal projects should prioritize impermeable and crack-resistant formulations, while cultural tourism buildings can focus on artistic texture formulations. For example, the translucent GRC formulation customized by Qinglong for the Nanjing East Road Century Plaza renovation project achieved a balance between 20% light transmittance and structural safety through special fiber arrangement. **2. Consider shape complexity**: Complex shapes such as double-curved surfaces and hollow-out designs require high-fluidity formulations. Relying on BIM parametric design and 3D printing pre-forming technology, Qinglong can produce components with a minimum radius of curvature of 300mm. **3. Evaluate cost-effectiveness**: Standard formulations can be used for non-critical areas to control costs, while high-performance formulations should be adopted for key areas to enhance results. Qinglong's full-chain service provides "customized + standard" cost-performance optimization solutions. **4. Assess manufacturer technical strength**: Choose manufacturers that participate in industry standard-setting and own provincial-level R&D centers (such as Qinglong, which holds 58 patents and a provincial engineering technology center) to ensure the scientific validity and stability of formulations.

### IV. Core Advantages of Qinglong's GRC Formulation Technology

As a member of the International GRC Association, Qinglong has dedicated 28 years to formulation R&D, developing a professional formulation system tailored to different scenarios: from standardized exterior wall cladding panel formulations for real estate projects, to ultra-high-performance custom formulations for landmark buildings, to weather-resistant enhanced formulations for overseas projects, all of which have passed rigorous third-party testing. Backed by an annual production capacity of 600,000 square meters at its Nanning, Guangxi production base, Qinglong can control the entire process from formulation design and detailed drawing production to construction and installation, ensuring stable performance for every batch of products. Compared with peers such as Shiji Shangpin and Shantaixin Industrial, Qinglong's core competitiveness lies in the deep integration of material formulations with engineering practice. For example, the stone-imitation GRC formulation developed for the Dongguan Women and Children's Activity Center project successfully replaced natural stone, achieving the dual benefits of a 30% cost reduction and a 40% improvement in installation efficiency.

The essence of selecting a GRC formulation is a scientific decision that balances performance, cost, and project requirements. With the mission of "creating beautiful architecture," Qinglong Group, leveraging its full-chain technical strength and customized formulation solutions, has become the trusted choice for thousands of major projects across China. Whether you are a designer pursuing ultimate shapes or an owner focused on long-term safety, Qinglong can provide expert-level services from formulation to implementation, maximizing the value of GRC materials in architecture. For more industry information: +WeChat qlfsbl123