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  • Product Name: Hollow Glass Sphere HK40
  • Model: HK40
  • True Density: 0.38-0.42g/cm³
  • Bulk Density: 0.20-0.24g/cm³
  • Particle Size: D90 ≤75μm
  • Crush Strength: 28MPa / 4000PSI
  • Survival: ≥90%
  • Flotation: ≥92%

1. Hollow Glass Spheres (HGS) is a kind of hollow spherical powdered ultralight inorganic nonmetallic materials. 
2. The Properties of HGS
Pure white color, HGS can be widely used in products which have high requirements for looks and colors.
Low density, reducing the products’basic weight obviously after filling. (the density of HGS is one out of a dozen of traditional filler particles' density). Relatively large volume, which can substitute and save more resins, reducing cost.
High dispersion and good fluidity, dimensional stability, reduced warpage and shrinkage when used as additives.
Heat insulation, sound insulation, mostly used as heat insulation paints and coatings, automotive sealants.
In addition, corrosion resistant, fire resistant, non-conducting.
3. Application Area
a. low-density oil well cementing slurry & low-density drilling fluids additive.
b. low-density FRP(fiberglass-reinforced plastic), SMC, BMC composites.
c. low-density adhesives & sealants
d. heat insulation paints and coatings
e. Construction (reducing warpage/shrinkage)
f. Insulation and Buoyancy
g. artificial marble
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