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LKAB Minerals manufacture sodium and calcium Bentonite products customised for a variety of industrial uses.

Your contact for 

Glyn Thomas

Sales Manager, Bentonite
Bentonite granules for the foundry industry

Bentonite is used in a wide range of applications. Within the foundry industry, Bentonite is widely used as a binder as the mineral can withstand high temperatures. We offer a range of products dependent upon the casting method used in the foundry.

White Bentonite

White Bentonite products are used in ceramics to improve the green strength and improve the ceramic body properties. For papermaking, White Bentonite provides pitch control and improves the paper quality.

Bentonite based grouting materials

High-efficiency Bentonite based grouting materials have been designed specifically for geothermal wells to ensure easy pumping, mixing and placing with Bentonite proven to have a long working life.

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

Bentonite applications

  • Bentonite in coatings

    Within water-based coatings, the gel structure of Bentonite aids the suspension of other pigments and prevents the film from sagging. Sodium Bentonite is particularly adept at forming impermeable barriers perfect for pond linings and other lining applications where an effective seal is required.

  • Bentonite in rubber

    Within the rubber industry Bentonite is an effective anti-tack for rubber extrusion like that undertaken in the tyre manufacturing process. Bentonite provides earthing for underground cables to lower the soil resistivity and does not corrode the cable whatsoever.

  • Foundry mould

    Bentonite in Foundries

    Our foundry grade Bentonite has excellent physical properties and high levels of thermal stability, making it suitable for use in foundry applications.

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

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 Bentonite in 25 kg paper sacks, 1,000 kg bulk bags or as bulk.

Chemical and physical properties

LKAB Minerals offer a range of products with a varying Montmorillonite content dependent upon the end use. More information on the chemistry and physical properties of Bentonite products can be found by requesting a product definition.

Bentonite mineral origin

Bentonite is derived from volcanic ash and consists predominately of smectite minerals usually Montmorillonite. Bentonite is categorised 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 toxicology

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


Interested in what Bentonite can do for you?

Start by selecting your country to get the right contact person

My name is Glyn Thomas and I'm a Bentonite product expert located in United Kingdom.

If you are interested in what this product can do for you, please give me a call or send me a message.

Office +44 1538 758400
Mobile +44 7768 023938

Call during business hours

09:00 AM - 17:00 PM

Local time in United Kingdom is 02:45 AM (UTC +0)

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