White Aluminum Oxide

Sandblasting material

White aluminum oxide is a high-purity, sharp-edged synthetic abrasive produced by electrically fusing pure aluminum oxide powder in an arc furnace. With a Mohs hardness of 9 and high friability, it provides fast cutting action, precise surface finishes, and minimal contamination, making it ideal for grinding, blasting, and polishing applications that demand exceptional purity and consistent performance.

Features

Mohs hardness rating of 9 for maximum cutting efficiency
High purity (typically >99% Al₂O₃) for applications requiring low contamination
Sharp, angular grain structure for aggressive material removal
High friability for consistent micro-fracturing and renewed cutting edges
Chemically inert and highly resistant to heat, acids, and alkalis

Applications

Precision grinding of high-carbon steel, stainless steel, and hard alloys
Abrasive blasting for stainless steel, titanium, and non-ferrous metals
Coated abrasives (sandpaper, abrasive belts) for fine finishing
Lapping and polishing of optical glass, ceramics, and electronic components
High-purity refractory materials for kilns and furnaces

Technical Data

Parameter	Specification / Characteristic
Hardness	Mohs: 9
Purity	>99% Al₂O₃
Grain Structure	Sharp, angular
Friability	High, enabling constant renewal of cutting edges
Chemical Stability	Inert to most acids and alkalis
Thermal Resistance	High melting point, suitable for high-temperature processes
Manufacturing Process	Electric arc furnace fusion of high-purity aluminum oxide powder
Common Forms	Macrogrits, microgrits; various ANSI/FEPA sizes available

Tags: blasting media, bonded abrasives, coated abrasives, grinding, high-hardness, high-purity abrasive, lapping, polishing, refractory, white aluminum oxide, white fused alumina

Tags:

white aluminum oxide, white fused alumina, high-purity abrasive, bonded abrasives, coated abrasives, blasting media, polishing, grinding, lapping, refractory, high-hardness