How to Assess the Surface Treatment Process of GRC Manufacturers? Qinglong GRC Surface Quality Evaluation Standards

The assessment of GRC surface treatment processes requires the establishment of a scientific evaluation system covering three dimensions: visual quality, physical performance, and durability. Qinglong GRC has formulated detailed surface quality acceptance standards.

Visual Quality Assessment

Color uniformity: color difference ΔE≤2.0; surface flatness: gap under a 2m straightedge ≤2mm; texture consistency: match with the reference sample ≥95%. These indicators ensure visual quality.

Physical Performance Testing

Water absorption: ≤6%; abrasion resistance: wear value ≤0.2g/cm²; stain resistance: contamination depth ≤1mm. Physical performance guarantees functional use.

Durability Assessment

Weather resistance: color change ≤Grade 1 after 1000 hours of UV exposure; corrosion resistance: no change after acid and alkali immersion; frost resistance: no spalling after freeze-thaw cycles. Durability ensures long-term use.

Process Stability Assessment

Inter-batch color difference control; consistency in large-scale production; stability of process parameters. Stability reflects the level of management.

Surface quality requires systematic assessment. It is recommended to formulate detailed acceptance standards and retain samples for reference. Qinglong GRC surface treatment processes have reached an industry-leading level.