Martoxid® Calcined Alumina and Hydral® and Martinal® Alumina Trihydrate (ATH) for Ceramic and Refractory Applications

Huber has a complete and comprehensive line of Martoxid® calcined aluminas used for ceramic and refractory applications. The product range includes coarse, medium and fine grades, as well as high purity products for the most demanding applications, such as armor plate and wear parts. The Martoxid line also includes ready-to-press products such as our KMS series.

Martoxid® advantages include:

  • Outstanding Fired Density
  • Excellent Wear Resistance
  • High Mechanical Strength
  • Reduced Mixing Water for Refractory Applications
  • Extraordinary Chemical Resistance against Slags, Gases and Fluids
  • Low and Very Low Soda (Na2O) Content Aluminas
  • Low Sintering Temperature

Huber's Hydral® and Martinal® alumina trihydrate (ATH) grades are also used in ceramics and refractory applications. They help to overcome thermal shock where the ceramic in the refactories must withstand extreme temperatures, both during the firing and subsequent use in the glass industry.  The endothermic decomposition of ATH and expulsion of water vapor acts an initial cooling system and overcomes stress cracking issues within the blocks and conveyor system.

Contact Us or visit our user-friendly Product Finder today for more information and to obtain samples of our products.