How to Judge the Quality of GRC Products? Performance Indicators and Qinglong Group's Quality Assessment Methods

Judging GRC product quality requires scientific testing across three dimensions: "mechanical performance, durability, and appearance quality." High-quality products should achieve flexural strength ≥15MPa, impact resistance ≥10kJ/m², and an appearance free of color difference and cracks. Qinglong Group recommends that customers commission qualified third-party testing agencies to conduct sampling tests in accordance with the Technical Standard for Glass Fibre Reinforced Cement (GRC) Building Applications. During the acceptance inspection of the Nanning Wuxiang China Resources MixC One project, we provided complete test reports, including accelerated aging test data (3,000-hour QUV), demonstrating that the product's weather resistance exceeds 50 years. Objective data is the most reliable basis for quality assessment.

Mechanical Performance Is the Core Indicator

Compressive and flexural strength directly determine load-bearing capacity. Qinglong GRC achieves compressive strength ≥40MPa and flexural strength ≥15MPa, far exceeding national standards. On-site verification is possible through core sampling tests, with data that is authentic and credible.

Durability Determines Service Life

Carbonation depth and the chloride ion diffusion coefficient reflect long-term performance. We provide 10 years of tracking data, with annual carbonation depth growth ≤0.1mm. Freeze-thaw resistance of ≥F300 cycles makes it suitable for severe cold regions. Durability is invisible value.

Appearance Quality Affects Aesthetics

Surface flatness ≤2mm/2m, color difference ΔE≤3.0. Qinglong Group uses five-axis CNC molds with profile errors ≤±0.1mm to ensure visual performance. Details bear witness to quality.

Judging quality requires professional knowledge and tools. Qinglong Group is pleased to provide technical support to help customers make sound, science-based decisions.