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LKAB Minerals offer UK manufactured Chalk from a local high quality soft white chalk deposit that has been quarried for more than sixty years.

Your contact for 

Magnus Johansson

Sales Manager Polymers & Coatings
Chalk bricks and powder

Chalk whiting is a versatile filler useful in paints, powder coatings, textured coatings, dry wall compounds, sealants and mastics. Rigid and flexible PVC, epoxy compounds, adhesives, rubber, printing inks and paper products can all utilise the mineral chalk.

The fine soft nature of chalk coupled with a smooth round particle shape and carefully controlled particle size distribution make it an ideal filler for a variety of applications. Our unique deposit is free from the abrasive flints normally associated with chalk whiting.
General properties cover

  • good colour
  • high brightness
  • low oil absorption
  • good temperature stability
  • ease of mixing.

Chalk applications

  • Chalk in polymers

    Chalk whiting is used as a general purpose filler in rubbers and plastics to reduce overall costs and to enhance the polymer's properties. Coated grades from our range are particularly well suited in PVC applications.

  • Chalk in coatings & sealants

    Chalk adds several properties to paints and coatings. Uncoated products are an effective extender for titanium dioxide in acrylic sealants. Read more by following the links.

Chalk standard grades

  • Uncoated grades: MC5, MC40
  • Whiter uncoated grades: MC20H, MC40H
  • Stearate coated grades: ST10, ST10H

Chalk packaging

Our Chalk product range is available in paper sacks, big bags or bulk.

The typical properties of Chalk are:

Physical properties of Chalk:

Specific gravity [g/cm³] 2.7
Refractive index 1.5
Oil absorption [ml/100g] 16 - 18
Moisture content [%] 0.25
Loose bulk density [kg/l] (uncoated grades) 0.5
Loose bulk density [kg/l] (coated grades) 0.7 - 0.9
Compacted bulk density [kg/l] (uncoated grades) 1
Compacted bulk density [kg/l] (coated grades) 1.1

Chemical properties of Chalk:

CaO [%] 52 - 55

Chalk mineral origin

Our Chalk product range comes from a high quality soft white chalk deposit in the UK.

Chalk mineral toxicology

The mineral is non-toxic and non-hazardous. For further information please download the Safety Data Sheet on the right of this page.

Interested in what Chalk can do for you?

Start by selecting your country to get the right contact person

My name is Magnus Johansson and I'm a Chalk product expert located in United States.

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

Office .
Mobile +1 513 375 2599

Call during business hours

08:00 AM - 17:00 PM

Local time in United States is 03:05 AM (UTC -5)

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