White Corundum for Coated Application

Introduction

White Fused Alumina (WFA) is an electro-fused artificial corundum produced from high-purity Bayer-processed alumina in an electric arc furnace. Its white color, high hardness (Mohs 9), and controlled particle shape make it particularly suitable for coated abrasive applications such as sandpaper, abrasive belts, and discs. In addition, WFA is widely used in bonded abrasives, blasting media, and refractories.

Physical Index

Application on Coated Abrasives

This grade of White Fused Alumina is specifically engineered for coating applications, offering excellent adhesion with resin and glue bonding systems, and consistent performance across both manual and automated sanding processes.

White Fused Alumina is an ideal grain for high-performance coated abrasives due to its:

• Controlled particle shape

Ensures consistent cutting action and uniform surface finish during sanding and polishing.

• Narrow grit size distribution – produces uniform surface finish

Delivers precise, repeatable results across the entire coated abrasive product.

• High purity & hardness – delivers long service life

Provides long service life and maintains sharpness throughout the application.

Application scenarios:

• Sandpaper 

• Abrasive belts & discs

• Flap wheels & rolls

• Micro-abrasive films

Packing & Delivery

For more detailed information, please click： TDS-WFA.pdf