Appearance:milky white liquid Usage: investment casting SiO2 content: 30%-40% Particle size: 10-20nm Packing: drum It’s used as the cohesive agent for various fireproof materials ,has high bonding strength and high heat-resisting performance(1500-1600°C)It’s used in coating industry which can makes the paints firm,anti-contamination,dustproof,anti-aging,fireproof,etc.As the precision casting of ...