MinSand is a perfectly spherical refractory bead produced by fusing and supercooling Bauxite in an electric arc furnace.

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Paul Pasquino

Paul Pasquino

President / Managing Director Americas

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MinSand has several properties that make the product quite unique on the market:

Flow Characteristics

The spherical particle shape significantly improves the flowability of the sand/binder mixture allowing cores of complex shapes to be blown when compared to alternative angular sands.

Thermal Expansion

MinSand has a very low rate of thermal expansion which enables castings to be produced with a high degree of dimensional accuracy when compared to mould and cores produced from alternative sands. This is eminently suitable for automotive cylinder blocks and heads.

MinSand binder quantities/strength

The spherical nature results in a reduced surface area enabling cores and moulds to be produced using lower resin additions. The mixed sand costs are reduced accordingly because of the lower resin demand.

Resin Systems

LKAB Minerals’product is compatible with resin systems including pre-coated shell moulding sands. The sand grains have a very smooth surface that is easily resin coated.

Different grades of MinSand foundry sand

MinSand standard grades

MinSand is available in the following grades:

  • P Grades:
    • AFS 30
    • AFS 40
    • AFS 44
    • AFS 50
    • AFS 55
    • AFS 65
    • AFS 75
    • AFS 80
    • AFS 90
    • AFS 110
  • G Grades:
    • AFS 30
    • AFS 40
    • AFS 50
    • AFS 55
    • AFS 65
    • AFS 75
    • AFS 80
    • AFS 90

Please contact your local sales representative for further information by using the contact us area below.


Regular packaging modes for our product are 1,000 kg big bags and 25 kg paper bags.

Physical properties of MinSand

Bulk density [g/cm³]
Particle shape

Chemical properties of MinSand

Al2O3 [%]
Fe2O3 [%]

MinSand toxicology

For further information on toxicology, you can download the Safety Data Sheet from the DOCUMENTS tab.

Please contact us for datasheets on a single grade or further information on our product range. You can find our sales contact by choosing your country in the contact form at the bottom of this page.

Safety Data Sheet

Product Definition