Advanced Nano PCC for Lightweighting in Automotive Plastics Precipitated calcium carbonate (PCC) emerges from carbonating lime milk in controlled reactors, yielding ultra-fine rhombohedral crystals with 99.9% purity and tunable particle sizes from 0.5 to 10 microns. Unlike ground limestone, its engineered surface area—up to 50 m²/g—enhances opacity in high-gloss paints and printability in supercalendered paper. Pharmaceutical grades...