CF Desco II is used to control rheological properties in water based drilling fluids. CF Desco II is an alkaline material, which is effective in a wide pH range (optimum is suggested at 9.0-11.0) in fresh water and salt-water muds.

CF Desco II is highly effective at low concentrations and is compatible with all other mud additives. It scavenges oxygen from the mud system, which assists in reducing corrosion and in extending the thermal stability of mud systems.