How is HPA used?

  • The largest consumption of HPA by volume today is in the manufacture of synthetic sapphire, a super-hard material used as a substrate in LED and semi-conductor production. There is currently no known substitute for HPA in the production of artificial sapphire.
  • Demand for 4N HPA for LED production continues to grow as LEDs are more widely applied.
  • The use of HPA for sapphire glass production is growing as this becomes the material of choice in display screens for portable electronic devices such as cell phones and smartwatches.
  • A high growth application of HPA is in the production of separators in Li-ion batteries.