Abietic acid diamylamine is primarily utilized as a corrosion inhibitor in industrial applications, particularly in metalworking fluids and lubricants. It forms a protective layer on metal surfaces, preventing oxidation and degradation caused by environmental factors. Additionally, it is employed in the formulation of coatings and paints to enhance their adhesion and durability. In the oil and gas industry, it serves as an additive in drilling fluids to reduce friction and protect equipment from wear. Its surfactant properties also make it useful in emulsifiers and dispersants for various chemical processes.