Fused silica is high-purity quartz sand that has been melted to form glass.
High volume stability, low volumetric expansion and high purity make fused silica a very useful and versatile material for refractory applications, whether in aluminum launders or other highly cyclical applications.
Our fused silica, Teco-Sil® has an extremely low thermal expansion coefficient, consistent chemistry and carefully controlled particle size distribution. Teco-Sil fused silica products are specially engineered grains and powders designed for use in foundry, refractory, investment casting and other special applications.
Teco-Sil is produced at IMERYS Greeneville fusion plant in Tennessee, USA.
Fused Silica is an extremely insulative material with very low thermal conductivity and with its good thermal shock resistance it is often used in flow control/continuous casting applications (for steel making) and glass rolls.
Teco-Sil fused silica products are specially engineered grains and powders designed for use in refractories.
For standard grades: