100-200mesh Fused Silica Sand for Investment Casting Sainuo Quartz

100-200mesh Fused Silica Sand for Investment Casting Sainuo Quartz. High Purity SiO2: SiO2 content above 99.95% with low impurities like Fe2O3 and Al2O3. Near Zero Thermal Expansion: Coefficient of thermal expansion is 0.1, ensuring excellent thermal stability. Customizable Color: Available in White or Transparent color options for specific needs. ISO Certified Quality: Product meets ISO certification standards for reliability and performance. Versatile Applications: Suitable for Rubber, Chemical, Construction, Ceramic, and Glass industries. OEM/ODM Support: OEM and ODM services are available for customized production requirements. Stable Particle Size: Special machinery processing ensures circular particles and stable distribution.