It is obtained from the fusion of high purity alumina powder in electric arc furnaces. WFA is one raw material characterized by high hardness, yet friable with high purity, chemical stability, a high melting point, and large crystal size.



  1. Bonded & Coated Abrasive Tools
  2. Wet/ Dry Blasting
  3. Super Precision Grinding
  4. Surface Treatment
  5. Blasting Media
  6. Laminate Flooring
  7. Coating
  8. Lapping
  9. Investment Casting Shells
  10. Polishing Crystal & Electronic Industry
  11. Special Micropowder for Precision Founding


Technical Data:


Chemical Composition

Specification Al2O3 Na2O
F220 ≥98.60 ≤0.50
F230~F800 ≥98.30 ≤0.60
F1000~F1200 ≥98.10 ≤0.70


Physical Properties

Principal Crystalline Phase α-Al2O3
Color Brilliant White
Shape Angular and Sharp
Crystal size 600μm ~1400μm
True Specific Gravity ≥3.9 g/cm³
Bulk Density 1.5~1.95 g/cm³
Knoop Hardness 2200~2300 kg/mm2
Mohs hardness ≥9.00
Refractoriness ≥1850℃ min


Grits Available:

F220, F230~F1200, P12~P220, P240~P2500, JIS240~JIS8000. In accordance with the current GB/FEPA/JIS sieve standards.

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White Aluminium Oxide Micropowder

  • Product Code: White Aluminium Oxide Micropowder
  • Availability: In Stock