Raw Clays (Fireclay)
Raw clays, and fire clay - usually written as fireclay - offer flexibility and strength when building clay bodies or enhancing the properties of existing ones. Whether refining texture, improving plasticity or creating custom blends for throwing or making sculptures, fireclays provide unmatched reliability when fired at high temperatures. Browse our raw clays below.
What is Fireclay?
Fireclay is a naturally occurring clay that can withstand high temperatures, making it ideal for creating durable stoneware bodies. Rich in silica and alumina, this clay resists thermal shock and shrinkage, contributing to strong yet flexible forms that can be thrown, stretched, and slab-built without tearing.
Often blended with other materials like ball clays or grog to create a tailored texture, colour or workability, the clay is considered to be relatively versatile. This clay is highly sought after by potters looking to build bodies.
Reliable and Versatile Raw Clay
The Fireclay 320 (Powder) is a versatile raw clay that supports a wide selection of applications. Supplied as a powder, this all-rounder clay delivers excellent strength and stability in stoneware blends, withstanding high kiln firing temperatures.
Naturally raw, the clay offers potters the experience of adapting to the natural characteristics of the clay. Occasionally, oversized particles will be present in the clay, which adds earthy charm to your work. When the clay is blended, it can help contribute to plasticity, is compatible with most glazes and is suitable for once-firing, reducing production times.
The clay can add strength, add texture and support working at scale.
Why Choose Potclays?
We've been helping our customers find the right clay, glaze, and tools and accessories for over 90 years. Our comprehensive range of products has been curated to benefit potters of every skill level while meeting high professional standards.
Whether you're preparing pottery for your next kiln firing or experimenting with custom blends, we supply the technical data, support, and quality you can trust.
Need help with preparing custom blends, or want to learn more about grogged clay? Whatever questions or queries you may have, we're happy to help. Get in touch with us today.
