Ethylene glycol is widely used as an antifreeze in automotive cooling systems to prevent engine components from freezing in cold weather and overheating in hot conditions. It is also utilized in the manufacturing of polyester fibers and resins, which are essential in producing textiles, packaging materials, and plastic bottles. In the aviation industry, it serves as a de-icing fluid for aircraft, ensuring safe operation during winter. Additionally, it acts as a coolant in liquid-cooled computers and industrial processes, helping to regulate temperatures effectively. Its hygroscopic properties make it a valuable component in the production of inks, paints, and coatings, where it helps control viscosity and drying times.