White Fused Aluminum Oxide for Polishing Floating Oil Seals Executive Summary White fused aluminum oxide (WFA) is the industry-standard abrasive for achieving the mirror-finish sealing surfaces on floating oil seal rings. Its unique combination of hardness, purity, and fracture characteristics makes it indispensable for creating the atomically-flat, chemically-pure mating surfaces required for reliable sealing in extreme conditions. 1.

White fused aluminum oxide for sandblasting glass products What is White Fused Aluminum Oxide (WFA)? It is a synthetic abrasive produced by melting high-purity alumina (Al₂O₃) in an electric arc furnace and then cooling and crushing it into precise grain sizes. It is characterized by: Extreme Hardness:​ 9.0 on the Mohs scale (diamond is 10).

White corundum for glass etching

What is “Plate Calcined Alumina”? “Plate” or “Platy”: Refers to the hexagonal plate-like shape of the individual alpha-alumina (α-Al₂O₃) crystals. This is the defining feature that enables its superior polishing performance (as explained in the previous answer). “Calcined”: This is a high-temperature thermal treatment process. A precursor material (often a high-purity aluminum hydroxide or transition alumina) is heated

What is White Fused Alumina 220#? White Fused Alumina (WFA):​ A synthetic abrasive known for its high purity (over 99% alumina), extreme hardness (9.0 on the Mohs scale, second only to diamond and silicon carbide), and excellent wear and corrosion resistance. 220# (Grit 220):​ This refers to the particle size. Grit 220 is a medium-fine

Why is White Fused Alumina 360# Used for Multifunctional Ceramics? First, What is White Fused Alumina 360#? White Fused Alumina (WFA):​ This is a synthetic abrasive produced in an electric arc furnace from high-purity alumina (Al₂O₃). The “white” designation indicates its high purity (typically >99% Al₂O₃), which gives it excellent mechanical properties and chemical inertness.