The Excellence of Synthetic Mica Powder: 1.Low Hg, Pb, As, etc. 8 heavy metals 2.High Whiteness (> 90) and Purity 3.Clean and smooth surface 4.Big Aspect Ratio (£¼70). Our unique technology of grading guarantees the narrow particle size distribution. 5.Good UV Reflection performance 6.Perfect Heatproof and Climateproof performance.