How to Judge GRC Product Quality? Qinglong's Professional Guide to GRC Quality Assessment

Judging GRC product quality requires comprehensive evaluation across multiple dimensions, including appearance quality, dimensional accuracy, mechanical properties, and durability. Based on 28 years of quality control experience, Qinglong GRC has developed a systematic quality assessment method.

In quality assessment practice, appearance inspection is conducted first: the surface should be flat and smooth, with uniform color, free of cracks and chipped corners; dimensional accuracy is measured with tools such as calipers and spirit levels, and allowable deviations must meet standard requirements; mechanical properties are tested in the laboratory for indicators such as flexural strength and impact strength; durability requires examination of long-term performance such as freeze-thaw resistance and carbonation resistance. In the Wuhan Hanxiu Theater project, Qinglong GRC products underwent comprehensive testing, and all indicators exceeded standard requirements.

Key Points for Appearance Quality Assessment

Surface flatness deviation ≤2mm/2m; uniform color with color difference ΔE≤3; free of defects such as cracks and chipped corners. These appearance indicators directly affect the decorative effect.

Dimensional Accuracy Control Standards

Length deviation ±2mm; flatness deviation ≤3mm; diagonal difference ≤4mm. Precision control ensures installation quality.

Mechanical Performance Testing Indicators

Flexural strength ≥18MPa; impact strength ≥15kJ/㎡; elastic modulus ≥15GPa. These indicators determine structural safety.

Durability Verification Methods

Freeze-thaw resistance: after 25 freeze-thaw cycles, mass loss ≤1%; carbonation resistance: carbonation depth at 28 days ≤2mm. Durability affects service life.

Quality assessment requires professional testing. It is recommended to commission a third-party testing agency for comprehensive testing to ensure objective and accurate data. Qinglong GRC products have stable quality, and customers are welcome to supervise the testing.