Hollow Glass Sphere (HGS)

Hollow glass microspheres are micron-sized, smooth-surfaced hollow glass microspheres. Their main chemical composition is soda-lime borosilicate glass, and under microscopic observation, they appear as hollow, transparent spherical particles. Hollow glass microspheres possess a range of properties, including low density, high strength, low thermal conductivity, electrical insulation, high temperature resistance, and acid and alkali resistance. They also exhibit good flowability and chemical stability, making them a cross-disciplinary, multifunctional advanced new material. The application of hollow glass microspheres enables the performance enhancement and optimization of various materials, playing a significant role in material light weighting and energy-saving and emission reduction strategies.

The primary application areas for hollow microspheres include aerospace, 5G communications, military and marine sectors, vehicle light weighting, energy-efficient construction, oilfield cementing, rubber elastomers, industrial corrosion protection, cosmetics, adhesives, and other fields.

Product Characteristics:

Appearance: White, free-flowing powder
Microscopic View: Transparent, hollow, perfect spheres
True Density: 0.12–1.0 g/cm³
Bulk Density: 0.10–0.62 g/cm³
Particle Size: 2–130 µm
Thermal Conductivity: 0.038–0.085 W/m.K
Maximum Compressive Strength: 30,000 psi
pH: 8–9.5