White Fused Alumina
High-purity white fused alumina abrasive with 99%+ Al2O3 for precision grinding, blasting, and refractory applications.
Specifications
- Al2O3
- ≥99.5%
- Fe2O3
- ≤0.04%
- Bulk Density
- 1.75-1.95 g/cm³
Features
- •High purity
- •High hardness (Mohs 9)
- •Excellent self-sharpening
- •Low magnetic content
Applications
Industries
White fused alumina is produced by melting high-grade calcined alumina in an electric arc furnace at very high temperatures, then cooling, crushing, and classifying the solidified mass into precise grain sizes. This fusion process creates a dense, highly crystalline abrasive with very high alumina content, bright white color, and low impurity levels. Because the raw material starts with refined alumina rather than bauxite, WFA is valued wherever consistency and cleanliness matter.
Its key performance advantages come from the combination of high purity, Mohs 9 hardness, and strong self-sharpening behavior during grinding and blasting. Low magnetic content is especially important for coated abrasives, ceramics, and electronics-related uses where metallic contamination can create downstream defects. WFA also performs well in refractory coatings and specialty ceramic formulations that need stable chemistry and reliable thermal behavior.
When selecting white fused alumina, buyers should focus on verified Al2O3 content, magnetic material control, and tight grain size distribution rather than price alone. For precision abrasive and technical ceramic applications, consistent lot-to-lot quality helps reduce process variation, improve finished surface quality, and minimize waste in production.
