Bentonite is used in a wide range of applications within the foundry industry as a binder, as the mineral can withstand high temperatures.

Inert and non-toxic

Used in both ceramics industry and paper industry

Withstand high temperatures


Product information

Bentonite is a versatile clay composed of the mineral montmorillonite, which is part of the smectite group of clays.

Depending on your casting method, we offer a range of Bentonite products.

Ceramics and paper industry

Both the ceramics industry and paper industry use white Bentonite.

In ceramics production, our customers use this to improve the green strength and the ceramic body properties.
While for papermaking, the product provides pitch control and improves the paper quality.

Bentonite-based grouting materials

For your convenience, we designed our high-efficiency Bentonite-based grouting materials specifically for geothermal wells. Supplying our product this way ensures easy:

  • Pumping
  • Mixing
  • Placing

Also, our product proves to have a long working life.

Bentonite standard product range

Activated Calcium Bentonite:

  • F2 Granules
  • F2
  • FD
  • FD_G
  • FD_GSC
  • FD_SC

Calcium Bentonite:

  • MB300
  • MSB

Sodium Bentonite grades:

  • MPV

Bentonite Packaging

We can deliver the product in 25 kg paper sacks, 1,000 kg bulk bags, or as bulk.

Mineral information

LKAB Minerals offer a range of products with varying Montmorillonite content dependent upon the end-user. You will find more information on the chemistry and physical properties of our product definition, which you can request from your local sales manager.

Mineral origin

Bentonite is derived from volcanic ash and consists predominately of smectite minerals, usually Montmorillonite. We categorise this product as a sedimentary deposit containing >50% Montmorillonite which is volcanic in origin. Montmorillonite is a dioctahedral layer silicate, and in sodium form swells when mixed with water to form dispersed colloid-size particles.
There are two common types of Bentonite for commercial use; sodium (or swelling) Bentonite and calcium Bentonite.


Bentonite is non-toxic and inert. LKAB Minerals do not offer this product for consumption in any form.

Industry use

Our customers use industrial minerals to improve constructions, increase safety and reduce costs.