Specialist Crafts White Firing Clay - 12.5kg

Specialist Crafts White Firing Clay is a smooth, all-purpose ceramic clay particularly suited to pottery wheel throwing, hand-building and domestic ware. Its smooth consistency makes it suitable for shaping bowls, vessels and other ceramic forms, while its good green strength helps pieces retain their structure before firing.

The clay fires to a white finish, providing a neutral surface for ceramic decoration and glazing. Suitable for a range of pottery techniques, it offers opportunities to explore form, proportion and surface treatments in school, college and specialist ceramics studios.

With a shrinkage rate of approximately 10%, the clay allows for dimensional changes to be considered when planning and constructing ceramic work. The stated overall firing range is 1100–1220°C, making it suitable for mid-fire to high-fire ceramic projects, including stoneware work.

Supplied in a 12.5kg bag, this clay is suitable for general pottery and ceramics applications.

Key Features

Smooth, all-purpose white firing clay

Particularly suitable for pottery wheel throwing

Good green strength before firing

Fires to a white finish

Suitable for hand-building and domestic ware

Stated overall firing range: 1100–1220°C

Shrinkage rate: approximately 10%

Supplied in a 12.5kg bag

Firing Temperatures

Overall stated firing range: 1100–1220°C

Bisque firing: 1140–1160°C

Glaze firing: 1040–1060°C

Best For

Pottery wheel throwing

General-purpose ceramic projects

Hand-building and clay construction

Bowls, vessels and domestic pottery

Exploring ceramic form and proportion

White-fired ceramic decoration

GCSE, A Level, FE and HE ceramics

School and college pottery studios

Important Information

Firing temperatures: The supplied specifications list an overall firing range of 1100–1220°C but a separate glaze firing range of 1040–1060°C. These figures should be confirmed before kiln firing.

Drying: Allow clay work to dry slowly and thoroughly before firing.

Water resistance: Kiln-fired clay is not automatically impermeable, even when fired to stoneware temperatures. For vessels intended to hold water, apply a suitable glaze to help reduce absorption, ensuring the glaze is free from pinholes and crazing.

Frost resistance: Glazing does not guarantee complete waterproofing or frost resistance.

Protecting surfaces: Place vessels holding water on a protective mat to help prevent moisture damage to porous surfaces such as wood.