Back to all products

Ball clays

Control casting rates and improve plasticity, strength and rheological stability with our range of ball clays (plastic clays) for sanitaryware, porcelain tiles, facing bricks and refractories.
photoshoot from Sourthacre Quarry UK 2006


Ball clays

Ball clays (also referred to as plastic clays) are fine-grained, highly plastic sedimentary clays, derived from kaolinite typically moved from decomposed feldspar present in igneous source rocks, such as granite. High quality ball clays are relatively scarce, and valued for their key properties of plasticity, rheology, unfired strength and light fired colour.

As well as kaolinite, ball clays typically contain other ‘contaminants’ that provide its unique characteristics. Layered mineral contaminants provide strength, whereas carbon contaminants can provide favourable rheological properties, well suited for sanitaryware production. 

UK ball clays
(known as
) are used primarily for sanitaryware, whilst our
Ukrainian clays
are used mainly in porcelain tiles. Clays from our operations in Germany are used in ceramics, bricks and refractories. 

Key characteristics of ball clay include:

  • rheological stability 
  • unfired strength 
  • plasticity and workability 
  • contribution to vitrification
  • light firing colour
contact form

Get in touch

Please use the form below to send us a message. A member of our team will review your query / request and get back to you as soon as possible.

How we use your data