
Low Thermal Conductivity 200f Fused Silica Sand for Refractories. High Purity SiO2: SiO2 content exceeds 99.95% with minimal impurities like Al2O3 and Fe2O3. Low Thermal Conductivity: Features near-zero thermal expansion and extremely low thermal conductivity. Customizable Colors: Available in White or Transparent color options as per customer requirements. Versatile Particle Sizes: Offers Block, Granular, and Powder forms with various mesh sizes from 0-60mm to 3000 mesh. ISO Certified Quality: Product meets ISO certification standards for refractory materials and ceramics. Stable Chemical Properties: Chemically stable with a pH value of 6 and high resistance to corrosion. OEM/ODM Support: Company provides both OEM and ODM services for customized quartz solutions.