HPA – High Purity Alumina


HPA – High Purity Alumina:
Generic name High purity alumina / HPA / Advanced Alumina
Sumitomo HPA (High Purity Aluminas) are uniform fine powder characterized by fine powder form of highly pure and homogeneous crystal structure. They’re manufactured by aluminium alkoxide hydrolysis process.

Sumitomo can provide suitable grades of all these Alumina materials for your application.  Please call us to discuss your requirements.

  • Sapphire: AKQ-10, AKX-5, AKS-G312 and Sintered Alumina for all methods of crystal growth.
  • Alumina Ceramic: AES Series, ALM-41, AKP-20, AKP30, AKP-53 and AA-04 for ceramic applications such as semiconductor devices, insulators, electrical power devices and more.
  • Resin Filler: Alumina Hydrate C/CL/CW Series, AKP Series and Advanced Alumina Series for resin filler in artificial marble, insulation rubber and IC packaging.
  • Ceramic Substrate: AL Series, AES Series and AKP Series used for ceramic substrates in circuit boards, LED reflectors, O2 sensors, heating devices.
  • Translucent Alumina Ceramics: AKP-20, AKP-3000 used for extrusion and slip casting of ceramics. Superior sintering performance at <1,700C.
  • Lithium Ion Battery: AKP-3000 and AES* series.
  • Plasma Spray Coating: AA-18; great PSD, flowability, and high purity!
  • Thermal Interface Materials (TIM): AA* series are commonly used for thermal conductivity and dissipation.
          Thermal Conductivity Data
  • Phosphor Material Applications: AA-03 and AA-04 are commonly used.


Product Databook Excerpt – HPA

For more information on HPA High Purity Alumina Contact:

Jason R. Cantone
Regional Manager
Phone: (845) 750-1007
[email protected]