Denka Spherical Alumina

High Sphericity Alumina filler
Filler for resins/rubbers which require high thermal conductivity

Product Information

Denka Spherical Alumina is highly spherical, developed by Denka’s unique high temperature melting technologies. As a filler for various resins or rubbers, it can increase thermal conductivity and improve surface hardness. Its affinity with various types of resins and rubbers allows high filling content to be easily achieved, and it can also control wear in kneading machines or molds compared to irregular-shaped fillers.


Filler for thermal interface material
Filler for semiconductor sealants
Powder to be laid for ceramic baking
Abrasive grain
Spraying material