Ball Clays

Important Notice

Starting Monday, July 6, entry to our facility will be open for customers. However the following guidelines must be followed:

  • Only 1 person permitted at a time, no exceptions.
  • Face masks must be worn at all times (if you do not have your own, one will be provided).
  • Hand sanitizing at entry is mandatory.
  • No admittance to office or washroom accessibility.
  • Debit or credit cards - no cash accepted.

Entry is for the purchase of supplies only. Technical assistance or inquiries are to be submitted via email or phone. Curb side pickup remains available if this is preferred rather than plant entry.

Observance of these conditions is essential for the continued health and safety of our employees and our customers.

Thank you for your understanding and continued support.

While kaolin is white and clean and considered pure clay mineral, ball clays, by comparison, are generally grey or brownish in color and differ in the following ways:
  • They have a much finer ultimate particle size
  • They contain organic material, especially lignite, that darken the raw color
  • They are much more plastic and suspend better
  • They contain chemical impurities that darken fired color (especially iron oxide)
  • They melt at a lower temperature.
The principal properties of ball clays that make them useful for a range of applications is:
  • Ultra-fine particle size: Ultimate particles can be 0.2 microns
  • Flat-shaped aluminum-silicate particles of high resistance to heat and acid attack
  • Affinity for water: The particles have a surface chemistry that attracts water and holds onto it
  • Surface area: Only bentonite and similar minerals have a higher surface area than ball clays
  • Very high plasticity: They are suitable as binders, suspenders, plasticizers.
Plainsman has a large deposit of ball clay in southern Saskatchewan and has actively mined it since the 1970s. While having the same general properties as other commercially available products (e.g. those from the southeastern US), this has several advantages:
  • Lower shipping costs for the western and northwestern part of the continent
  • We can produce at coarser particle sizes
  • We can custom-blend ball clays with other clays from our quarries to create custom materials
  • Plainsman has very responsive customer service, sales and technical support departments
  • Plainsman can deliver a consistent product quickly.

Product Data Sheet

A2 Ball Clay