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Imerys Ceramics | Ball clay - sanitaryware, tableware, tiles
Ball clay

Ball clay is a mineral formed from the weathering and transportation by water of parent rocks which are deposited in ancient river basins from where it is now extracted.


Key ball clay properties

Ball clay is essential for ceramic production because of its high plasticity and strength. Key ball clay properties include:

  • High plasticity
  • High unfired strength
  • Highly controlled rheological properties
  • Controlled organic content
  • Controlled residue
  • Excellent workability


Imerys Ceramics ball clays

Imerys Ceramics has at its disposal ball clays with a range of different properties .By blending selected clays from different locations Imerys can provide high quality products for a range of ceramic applications. English ball clays are renowned for their unique rheological properties and their rare combination of strength, plasticity, rheology and whiteness; all of which are maximised by Imerys for the benefit of our customers. Our English ball clay range includes:

  • Hycast - very fast-casting ball clays
  • Hywite - clays with high fired brightness
  • Hymod - clays exhibiting high modulus of rupture for applications where strength is of primary importance
  • Hyplas - clays with high strength and excellent workability. They are more siliceous than the other groups

The Imerys Ceramics ball clay products come from England, France, Thailand and the United States. We also make use of blending platforms, in India for example, to ensure that we produce ball clays that address the specific technical challenges of each region.


Production process

For example, the Hycast VC ball clay is made from 16 different component clays sourced from many different quarries. The blend comprises 45 parts, which are sub-divided into three sub-blends. These sub-blends are shredded and then fed through a paddle mixer, which mixes the final product. This production process is designed to give a high level of uniformity, ensuring that each consignment from a production batch is the same as the next. Ultimately, this is why our products are known for their consistent performances.

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