Potassium fluoroborate (KBF4) is used in aluminium-metallurgy, in the production of abrasives, as soldering agents, in ceramics, and in the chemical industry.



  • Aluminium-metallurgy: as component in fluxing and grain refining agents for aluminium and magnesium as component in protecting salts for light metal castings
  • Production of abrasives: as active filler in resin-bonded abrasives for metal treatment.
  • Production of soldering agents: as component in fluxing agents for soldering and brazing.


  • Water insoluble potassium source
  • Excellent for oxygen-sensitive applications