High Quality Sio2 99.8% Fused Silica for Investment Casting

Application: Electronics Industry, Packaging Industry, Coatings, Electronics, Energy Storage, Plastics, Refractory, Painting, Casting, Grinding, Shoes Sio2 Content (%): 99.9%(Min) Fe2o3 Content (%): 50ppm(Max) Al2O3 Content (%): 200ppm(Max) MGO Content (%): 40ppm(Max) Alkalies Ca20+K2o: 100ppm(Max)