Fused quartz sand is the amorphous (glassy) form of silicon dioxide (SiO2). It is transparent and a type of glass with a long and disordered atomic structure. Its temperature and low thermal expansion coefficient are enhanced through cross-linking in a three-dimensional structure. Selected silicon stone raw material (sio2>99%) is melted in an electric arc furnace or resistance furnace at a temperature of 1695-1720°C. Due to the high viscosity of the SiO2 melt, it cannot be shaped using casting methods at 1900°C (10^7 Pa·s). After cooling, it becomes a glassy material, which is then mechanically processed, magnetically separated, purified, sieved, and produced into granular fused quartz sand of various specifications and applications.

Fused quartz sand applications: Used as a filler in industries such as paint and coatings, it is also a key raw material for industries like epoxy resin casting, electronic sealing materials, foundry materials, refractories, ceramics, and glass.