MinSand - Spherical Refractory Bead

• Excellent surface quality of casted items
• high dimensional accuracy
• Low refinishing on final product needed
• Low surface area
• Low thermal expansion rate
• Perfectly spherical

Packaging

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

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 thermal expansion rate, which enables castings to be produced with a high degree of dimensional accuracy 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.