GRANT MGS-POWDER 3300 Silicone resin powder. INCI Name Polymethylsilsesquioxane Specs & MSDS MGS-POWDER 3300 Spec Sheet MGS-POWDER 3300 SDS Download Catalog Request Samples Physical Properties Appearance White powder Non-Volatile Matter (105°C, 1.5g, 3hrs, Gravity Oven) 97.00 – 100 Average Particle Size 4.5 Particle Size Range 2 – 10 Heavy Metals <20