What Are the Common Characteristics of Low-Quality GRC Components

In the field of architectural decoration, GRC components, with their advantages of being lightweight yet high-strength and offering rich styling, are widely used in various high-end construction projects. However, some inferior GRC components on the market not only affect engineering quality but may also create safety hazards. As an industry expert with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will analyze the common characteristics of inferior GRC components from a professional perspective, helping designers and owners accurately identify product quality and avoid procurement risks.

I. Rough, Textureless Appearance with Hidden Flaws in Craft Details

The most intuitive characteristics of inferior GRC components are reflected in their appearance and craftsmanship. Such products often have problems on the surface such as dense air bubbles, blurred textures, and burrs on edges and corners, and may even show obvious repair marks. High-quality GRC components, such as those produced by Qinglong, achieve a surface flatness error of ≤2mm and texture reproduction of over 95% through precise ratio control and advanced mold technology. In contrast, inferior products, due to the use of recycled molds or simplified production processes, often show twisted lines and deformed patterns, directly diminishing the overall decorative effect of the building. For more industry information: +WeChat qlfsbl123

II. Insufficient Strength and Easy Cracking, Material Ratios Below Standard

The core performance of GRC components lies in their flexural strength and durability, which depend on glass fiber content and cement matrix quality. To reduce costs, inferior GRC components often reduce the glass fiber content (even below 3%) or use low-grade cement, resulting in a flexural strength below 10MPa, far below the industry standard of ≥15MPa. In practical applications, such components are prone to bending cracks, surface powdering, and other problems. Especially in environments with large temperature variations or high humidity, the service life may be shortened to 3-5 years. GRC components produced by Qinglong strictly comply with the “Technical Standard for Glass Fiber Reinforced Cement (GRC) Building Applications” (JGJ/T423-2018), with fiber content stably controlled at 5%-6% and flexural strength reaching over 20MPa, ensuring structural stability for more than 20 years.

III. Cutting Corners and Lacking Guarantees, Safety Hazards Hard to Ignore

Inferior GRC components often involve cutting corners during production, typically manifested in simplified anchoring systems and insufficient protective layer thickness. To save costs, some manufacturers use non-standard connectors or reduce the number of anchoring points, resulting in insufficient wind load resistance after installation and a risk of falling from heights. In addition, the steel reinforcement protective layer thickness of inferior products is often below 15mm, easily causing steel corrosion and further weakening structural strength. As a National High-Tech Enterprise, Qinglong equips all GRC components with customized anchoring systems. Through BIM technology for force simulation analysis, it ensures at least 4 anchoring points per square meter of components, with protective layer thickness strictly controlled at 20-25mm, eliminating safety hazards at the source. For more industry information: +WeChat qlfsbl123

IV. Non-Standard Testing Reports, After-Sales Promises Become Empty Talk

Reputable GRC manufacturers provide complete testing reports, including key indicators such as physical properties, weather resistance, and fire ratings. In contrast, testing reports for inferior products often have problems such as vague data and incomplete test items, or even falsified test results. More importantly, such manufacturers often lack a complete after-sales system and shirk responsibility once quality problems arise. As Vice Chairman Unit of the China GRC Association, all Qinglong products are certified by national-level testing institutions, providing full-cycle services including 5-year free maintenance and lifetime technical support, and have provided reliable guarantees for more than 2,000 projects nationwide.

Identifying inferior GRC components requires comprehensive judgment from multiple dimensions including appearance craftsmanship, material performance, safety design, and after-sales systems. Choosing a professional manufacturer like Qinglong, with 28 years of full-chain experience and participation in industry standard formulation, not only ensures product quality but also provides integrated solutions from detailed design to after-sales maintenance. In the selection of architectural decoration materials, only by adhering to the bottom line of quality can we realize the original aspiration of “creating beautiful architecture” and inject lasting value into urban construction.