Fused quartz sand is the amorphous (glassy) form of silicon dioxide (SiO2). It is translucent and a type of glass with a long and disordered atomic structure. Its temperature and low thermal expansion coefficient are enhanced by the cross-linking of its three-dimensional structure. Selected silicon stone raw material with SiO2 > 99% is melted in an electric arc furnace or resistance furnace, reaching a melting temperature of 1695-1720°C. Due to the high viscosity of the SiO2 melt, it cannot be shaped by casting methods at 1900°C. After cooling, it becomes a glassy body, which is then mechanically processed, magnetically separated, purified, and sifted to produce granular fused quartz sand of various specifications and uses.

Fused quartz sand applications: Serve as a filler in industries such as paint and coatings, and is also a primary raw material for industries like epoxy resin casting, electronic sealant, foundry materials, refractory materials, ceramics, and glass.