Industrial Grade White Fused Silica Sio2

• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials
• Type: Refractory Material
• Shape: Powder
• Material: Sio2
• Transport Package: Big Bag, Pallets
• Model NO.: 0.063
• Specification: 3-10mm, 10-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0.5mm, 1-0
• Trademark: KM
• Origin: China

Product Description

Material for refractory slurry. Specially for investment casting, producing of ceramic moulds. 
Fused quartz is made of refined quartz sand after melting at high temperature, cooling, crushing and grading of the block and processing it into various specifications of particles according to the use. It has high SiO2 content, close to zero thermal expansion coefficient, good electrical insulation, heat resistance and very low heat conductivity. Its mainly used in epoxy sealant, precision casting, refractory, fine ceramics, casting mold, silicone rubber, marble and other industries.
 

component :SiO2: 99.92%-99.50%; Fe2O3: 20ppM max 

Li2O: 1.0 ppM; Al2O3: 30 ppM; 

K2O:20ppM max; Na2O: 20ppM max; 

size :(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.