Fused Silica
High-purity fused silica with ultra-low thermal expansion for casting, refractories, and precision industrial applications.
Specifications
- SiO2
- ≥99.8%
- Fe2O3
- ≤0.005%
- Bulk Density
- 1.45-1.55 g/cm³
Features
- •Ultra-low thermal expansion
- •Excellent thermal shock resistance
- •High purity
- •Low thermal conductivity
Applications
Industries
Fused silica is an amorphous silicon dioxide material valued for its extremely low thermal expansion and excellent thermal shock resistance. These properties make it useful in systems where dimensional stability under temperature change is more important than high mechanical strength.
It is widely used in investment casting shell systems, refractory coatings, electronics packaging, and precision thermal processes. High purity fused silica is especially important where contamination, expansion mismatch, or thermal distortion can create costly defects.
For buyers, the most important selection points are purity, particle consistency, and stability during processing and transport. Choosing a reliable fused silica source helps improve dimensional control, reduce cracking risk, and support better consistency in precision manufacturing.
