LKAB Minerals offer a range of fine ground Aluminium Trihydrate (ATH) products manufactured in Europe

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Melissa Bartz

Melissa Bartz

Inside sales / Sales coordination Americas

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Aluminium Trihydrate, also known as Aluminium Trihydroxide or Alumina Trihydrate, is derived from Bauxite ore. This natural ore is refined to a fine white powder via the Bayer process. After washing and drying it is used as the feedstock for a wide range of Alumina chemicals. The raw material used for the ATH products is from a high purity source.

Important properties ATH

ATH has the following properties important to most applications:

  • Exceptional whiteness
  • Good translucency
  • Resistance to chemicals and weathering
  • Impact resistance

The softness of the mineral contributes to making materials machinable with loading levels between 40% and 70% becoming possible and providing best properties.

ATH - Aluminium Trihydroxide mineral powder

ATH standard grades

  • General grades: M6B, M8B, M10B, M15B, M20B, M25B
  • Low viscosity grade: B302

ATH packaging

Our ATH product range is available in paper sacks or big bags. Some of our ATH grades are available in bulk, please contact your sales representative to find out if this applies to the grade you would like to purchase.

The typical properties of ATH are:

Physical properties of ATH:

Specific gravity [g/cm³]
Refractive index
Hardness (Mohs)
1.5 - 3.5
Moisture content at 105°C/1h [%]
Loose bulk density [kg/l]
0.6 - 1.41
pH content (20% w/v slurry)

Chemical properties of ATH

Al2O3 [%]
H2O [%]

Safety Data Sheet

Downloads on request