Aluminum potassium fluoride is widely used in the metallurgical industry, particularly in the production of aluminum. It serves as a flux to lower the melting point of alumina, making the electrolytic reduction process more efficient during aluminum extraction. This compound is also employed in the manufacturing of abrasives and ceramics, where it enhances the durability and thermal stability of the final products. Additionally, it finds application in the synthesis of certain types of glass, contributing to improved optical properties and resistance to chemical corrosion. In the field of welding, it is used as a component in fluxes to facilitate the joining of metals by preventing oxidation and ensuring a clean weld surface.