White corundum is a synthetic product. It is manufactured by melting high-quality aluminium oxide. White corundum is more than 99 % aluminium oxide. The primary characteristics of white corundum are its hardness and transparency. Only diamonds are harder. This extreme hardness is a challenge for any milling or grinding process. Our SEPASIL® white corundum powders exhibit a specially designed, extremely narrow grain size distribution curve. The final refining step involves modifying the surface of the particles for the respective area of application.
Features
• High hardness (9 Mohs)
• High chemical resistance
• Density 3.95 g/cm3
• Good transparency due to particularly narrow grain size distribution
• Excellent thermal conductivity: 41W/m*K
• Depending on processing: the grain shape is splintered or rounded
Key applications
• Durable wood and decorative coatings
• Laminates