Fused Silica Lump&Sand&Powder Qmin-SIL Series Fused Silica is made of highest purity Chinese crystal Silica by electrically fusing (fusing temperature 1800-2000)to amorophos Silicon dioxide, then specially engineered ingots, granular and flour form designed for different usage. This product has a very low thermal conductivity and excellent thermal shock resistance.
Special Features: Near zero thermal expansion coefficient Excellent thermal shock resistance Pure(high SiO2 content, low Iron, Potassium & Sodium Oxide) Consistent Chemistry Statistically controlled particle size distribution Main Applications: EMC (Epoxy Molding Compound) Investment Casting, shell mould product Refractory & Ceramic materials Paint Others
Physical Properties: Appearance: Transparent Ingots, Granule or White Powder Specific Gravity: 2.21 Hardness( Mohs): 7.0 pH: 5-7 Whiteness: 95Min.
Size Available: (Ingot, Granules and powder): (1) 3-10mm, 10-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0.5mm, 1-0.2mm, 0-0.5mm, 0.5-0.2mm, 0.5-0.1mm, 0.2-0.1mm, 0.5-1mm. (2) -4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh, -50+100mesh, -120F, -200F, -325F, -400F, -600F, -800F, -1000F...-2500F Please contact us to inquiry for more about products particles size distribution, and chemical composition.