1,1,3-tributyl-thiourea is primarily used as a corrosion inhibitor in industrial applications. It is effective in protecting metals, particularly in acidic environments, by forming a protective layer on the metal surface. This chemical is also utilized in the synthesis of organic compounds, where it acts as a catalyst or reagent in various chemical reactions. Additionally, it finds application in the production of rubber and plastics, where it serves as an accelerator in vulcanization processes, enhancing the material's properties. Its role in stabilizing certain polymers further extends its use in the manufacturing of durable materials.