Custom Flotation Machine Impeller – Carbon Fiber Reinforced Silicon Carbide Wear-Resistant Composite Impeller for Abrasive Slurry The carbon fiber reinforced silicon carbide composite flotation impeller combines SiC aggregate, carbon fiber and a resin binder. Manufactured by vacuum hot casting, it provides a low-density material option for flotation machine impeller replacement and custom wear parts. SiC aggregate resists abrasive wear, while carbon fiber improves composite