Analysis of Technical Parameters and Key Points to Specify When Signing a GRC Supply Contract

In the field of architectural decorative materials, GRC (Glass Fiber Reinforced Concrete) is widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings, thanks to its advantages of light weight, high strength, and flexible shaping. As an industry leader with 28 years of experience in detailed design, manufacturing, construction and installation, and after-sales maintenance of UHPC/GRC/GRG/GRP materials, Qinglong Group fully understands the importance of clarifying technical parameters and key points when signing a GRC supply contract. This article analyzes the core elements of contract signing from a professional perspective, providing practical reference for designers, owners, and procurement parties.

I. Clarification and Standardization of Core Technical Parameters of GRC Materials The technical parameters in a GRC supply contract are the foundation for ensuring product quality and engineering results, and must cover three dimensions: material performance, production standards, and acceptance criteria. First, regarding material performance, the glass fiber content (usually not less than 4%), flexural strength (premium GRC can reach over 20MPa), bulk density (controlled at 1.8-2.0g/cm³), and fire rating (must meet the A1 non-combustible standard) should be specified, as these parameters directly affect the safety and durability of components. Second, production standards should reference industry specifications such as the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), and specify details such as the forming process (spraying or premixing) and curing method (steam curing or natural curing). Finally, acceptance indicators should include dimensional deviations (e.g., panel thickness tolerance ≤2mm), surface flatness (≤3mm/m), and embedded part position accuracy to ensure smooth on-site installation. For more industry information: +WeChat qlfsbl123

II. Reflecting Customized Project Requirements in the Contract The greatest advantage of GRC materials lies in their customizable shaping capability, and the contract must fully reflect the project's individualized requirements. For complex components such as double-curved surfaces and openwork reliefs, the minimum radius of curvature (recommended ≤300mm), surface treatment processes (such as stone-like texture, matte, or high-gloss finishes), and texture precision requirements should be specified. Meanwhile, responsibility for detailed design should be agreed upon; if the supplier is responsible, the design period, BIM model delivery standards, and coordination procedures with the original design institute should be specified. Taking a landmark project undertaken by Qinglong Group as an example, by establishing a parametric design collaboration mechanism in the contract, the precise implementation of a 12-meter-high irregular GRC curtain wall was successfully achieved, avoiding later cost increases caused by design coordination issues.

III. Full-Process Service and Quality Assurance Clauses A quality GRC supplier should provide full-chain services from detailed design to after-sales maintenance, and the contract must clarify the responsibilities and standards of each stage. In the manufacturing stage, agreements should cover raw material brands (e.g., alkali-free glass fiber roving), production cycles, and factory inspection report contents (including mechanical performance and weather resistance test data). In the construction and installation stage, installation techniques (such as 3D laser scanning positioning and modular installation), anchoring system requirements (such as the material and anti-corrosion treatment of stainless steel connectors), and on-site acceptance procedures should be specified. Regarding after-sales maintenance, the warranty period (recommended no less than 5 years), regular inspection frequency, and repair response time should be clarified to ensure long-term stable operation of the project. As a national-level high-tech enterprise, Qinglong Group incorporates full life-cycle service commitments into its contracts and has provided reliable guarantees for more than a thousand projects nationwide. For more industry information: +WeChat qlfsbl123

IV. Supply Chain Management and Risk Avoidance When signing the contract, supply chain stability must be fully considered to avoid project delays caused by raw material fluctuations, production delays, and other issues. It is recommended to agree on a raw material price adjustment mechanism (such as the handling method when main material prices rise by more than 5%), production schedule milestones (such as a monthly capacity of no less than 5,000 square meters), and liability for breach of contract due to delayed delivery. In addition, for export projects (such as Qinglong Group's cases exported to Malaysia and Australia), packaging standards, transportation methods, and customs declaration responsibilities must also be clarified to ensure smooth cross-border delivery.

Signing a GRC supply contract is a key step toward project success, requiring both technical rigor and comprehensive service. With 28 years of industry experience, Qinglong Group has always been guided by the values of “Honesty, Striving, Trust, and Collaboration,” providing customers with integrated solutions from technical parameter confirmation to after-sales maintenance. Choosing a professional GRC manufacturer not only guarantees project quality but is also an important prerequisite for achieving the unity of architectural aesthetics and practical value.