What Performance Tests Must Products Pass Before Leaving the Factory?

In the field of architectural decoration materials, pre-shipment performance testing is a key link in ensuring project quality. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has always integrated testing standards throughout the entire production process, providing reliable material solutions for designers and owners. Below, starting from the testing systems of the four core materials, we analyze how professional manufacturers ensure product quality through scientific testing.

1. UHPC (Ultra-High Performance Concrete): Comprehensive Control from Mechanical Properties to Durability

UHPC materials are renowned for their ultra-high strength and durability, and must pass multiple rigorous tests before leaving the factory. First is mechanical performance testing, including compressive strength (standard requirement ≥150MPa), flexural strength (≥25MPa), and elastic modulus testing, ensuring the material can withstand complex loads in building structures. Next is durability verification, through frost resistance testing (strength loss rate ≤5% after 300 freeze-thaw cycles), impermeability testing (penetration height ≤5mm), and carbonation depth testing, guaranteeing the material's long-term stability in extreme environments. As a participating developer of the industry standard "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)", Qinglong Group's testing process strictly follows advanced international standards, ensuring every batch of products meets high-end project requirements. For more industry information: WeChat qlfsbl123

2. GRC (Glass Fiber Reinforced Concrete): Dual Guarantee of Structural Safety and Decorative Effect

The testing focus for GRC materials lies in balancing structural safety with decorative expressiveness. Physical performance testing covers flexural strength (premium GRC can reach over 20MPa), bulk density (controlled at 1.8-2.0g/cm³ to achieve lightweight properties), and glass fiber content testing (ensuring a reinforcement effect of ≥4%). For decorative requirements, surface flatness (error ≤2mm/m), color uniformity (color difference ΔE≤3), and texture clarity testing are required. Qinglong's production base is equipped with a professional GRC testing laboratory. Drawing on more than 20 years of engineering experience, it has established a full-process quality traceability system from raw materials to finished products, and has provided high-quality components compliant with the "Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC)" for award-winning projects such as the Dongguan Women and Children's Activity Center.

3. GRG (Glass Fiber Reinforced Gypsum): Professional Verification of Acoustic Performance and Environmental Indicators

GRG materials are commonly used in high-end interior decoration, with testing items focused on acoustic and environmental performance. Acoustic testing includes noise reduction coefficient (NRC≥0.8) and sound diffusion coefficient testing, ensuring excellent sound field effects in venues such as concert halls and theaters. In terms of environmental indicators, products must pass formaldehyde emission testing (≤0.1mg/m³), radionuclide limit testing (internal exposure index IRa≤1.0), and fire rating certification (meeting the Class A1 non-combustible standard). Qinglong's GRG production line adopts automated forming processes combined with precise moisture content control (8%-12%), ensuring no risk of cracking or deformation after installation, and is widely used in scenarios with stringent environmental and acoustic requirements such as star-rated hotels and convention and exhibition centers. For more industry information: WeChat qlfsbl123

4. GRP (Glass Reinforced Thermosetting Plastic): Strict Control of Weather Resistance and Forming Precision

Due to the corrosion resistance and flexible shaping characteristics of GRP materials, the testing system focuses on weather resistance and forming processes. Weather resistance testing includes artificial accelerated aging tests (strength retention rate ≥80% after 1000 hours of UV exposure) and acid-alkali corrosion resistance (no performance degradation after 72 hours of immersion in 5% concentration acid-alkali solutions). For special-shaped components, dimensional accuracy testing (3D scanning error ≤1mm) and Barcol hardness testing (≥40HBa) are required. Qinglong's GRP production team uses BIM technology and 3D modeling to achieve precise forming of complex curved components. Its products are not only applied in domestic theme parks and sports venues, but are also exported to overseas markets such as Southeast Asia and Australia, withstanding the test of different climatic environments.

As a national high-tech enterprise and a participating developer of multiple industry standards, Qinglong Group integrates its commitment of "meticulous attention to detail and constant pursuit of excellence" into the testing process. Through intelligent production lines with an annual capacity of 600,000 square meters, it provides customers with full-chain services from detailed design to after-sales maintenance. Whether it is the cost control valued by real estate developers or the creative realization pursued by designers, strict performance testing is the solid foundation for fulfilling the mission of "creating aesthetic architecture". Choose a professional UHPC/GRC/GRG/GRP manufacturer, and let material quality become a reliable guarantee for project success.