Tri-o-tolyl borate is primarily used as a stabilizer and antioxidant in various industrial applications. It is commonly employed in the production of polymers and plastics to enhance their thermal stability and prevent degradation during processing. The compound is also utilized as a corrosion inhibitor in lubricants and oils, where it helps protect metal surfaces from oxidation and wear. Additionally, it finds application in the synthesis of specialty chemicals, serving as an intermediate in organic reactions. Its ability to act as a flame retardant makes it valuable in the manufacturing of fire-resistant materials. In the electronics industry, it is used in the formulation of coatings and adhesives to improve their performance under high-temperature conditions.