GNPGraystar’s Spherical Alumina is a spherical alumina powder with high thermal conductivity, good heat resistance, high electrical insulation, high hardness, and low abrasivity. The spherical nature of this powder allows for high flowability and high packing density.

Spherical Alumina is used in resins, rubbers & plastics as fillers for thermal conductive sheets, fillers for molding materials, base powder for baking ceramics, blasting materials, and spacers.

Physical Properties:

  • Appearance: White Powder
  • Moisture: ≤ 0.05%
  • EC: ≤ 10 µS/cm
  • pH: 7.0 ± 0.5
  • Spherical Particles Ratio: ≥ 95%
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