1,3-Dicyclohexylthiourea is primarily used as a corrosion inhibitor in industrial applications, particularly in metalworking fluids and cooling systems. It helps protect metal surfaces from degradation caused by exposure to water, acids, and other corrosive agents. Additionally, it is employed in the synthesis of certain organic compounds, where it acts as a catalyst or intermediate in chemical reactions. In the field of polymer chemistry, it is utilized to modify the properties of polymers, enhancing their stability and performance. Its effectiveness in these applications makes it a valuable component in various industrial processes.