What Are the Key Considerations in GRC Decorative Panel Grinding? — Surface Treatment Technology and Quality Control Essentials

The polishing process of GRC decorative panels directly affects surface smoothness and aesthetics, requiring careful operation through tool selection, process parameters, and quality control. Qinglong Group believes that high-quality polishing should achieve surface flatness ≤3mm/2m and roughness Ra=3.2-6.3μm, free of polishing marks and color differences. Scientific polishing enhances the decorative effect of GRC and meets the requirements of high-end projects.

Tool selection is key. Use diamond grinding pads (grit 60-120) for coarse grinding and resin grinding pads (grit 200-400) for fine grinding. Qinglong Group adopts mechanical polishing for high efficiency and good consistency. Process parameter control is important, with grinding depth ≤0.5mm per pass to avoid damage. Wet grinding reduces dust and improves surface quality. These measures ensure effective polishing.

Quality control is indispensable. Flatness and smoothness should be checked after polishing. Qinglong Group conducts a full inspection of every panel, with a pass rate ≥99%. Scientific polishing makes the GRC surface flawless and enhances project quality.