Blue Circle® Premium Clay is a super fine kaolin clay, also commonly referred to as ball clay, supplied for use in construction and specialist applications.
With high plasticity, dry strength and refractory properties, Premium Clay is typically used as a plasticiser in building mortars and renders, or as a general‑purpose filler in selected formulations.
Features and Benefits
High plasticity
Improves workability and finish when used as a plasticiser in mortars and renders.
Fine kaolin clay
A super fine material suitable for use as a filler or functional ingredient in construction formulations.
Refractory properties
Used as an ingredient in selected refractory and heat‑resistant applications.
Contact Boral to discuss Premium Clay suitability, availability and packaging options.
Applications
Premium Clay is most commonly used in construction and specialist applications, including:
Mortars and renders
Used as a plasticiser to improve workability and finish in cement‑based mortars and renders when added in controlled quantities.
General‑purpose filler
Suitable as a filler material in construction formulations where fine particle size and plasticity are required.
Refractory formulations
Used as an ingredient in selected refractory products where clay properties contribute to performance.
Product Downloads
Important application guidance
- Premium Clay is a naturally occurring material, and colour may vary between batches. All clay materials should be checked prior to use in colour‑sensitive applications.
- Clay should not be used as a substitute for lime.
- With all clay materials, trials should be conducted on mix designs prior to use to confirm suitability for the intended application.
- As a guide, use the minimum amount required to achieve the desired workability and finish.
- Excessive clay or fine silt content in mortars and renders may negatively affect strength, shrinkage and durability.
- Boral does not specify mix designs when using clay, as performance is dependent on sand type and other variables.
For masonry applications, mortars should be tested for compliance with AS 3700 – Masonry Structures, where applicable.