Primo Black Self-Hardening Modelling Clay - 1kg (1)

Craft unique creations using this block of Primo black modelling clay! When paired with other clay hues, you can produce a range of models with striking contrasts!

Allow 1-2 days for drying, depending on the thickness of your pieces. If the clay feels cool, it is still releasing moisture and is not fully dry. This clay does not require firing and will harden into a durable and solid form without the need for heat curing. For optimal results, knead the clay thoroughly before use and ensure a minimum thickness of 1 cm. Supplied as a single brick.