Most of the time, it's still called Clay. After it dries, it is/they are clay bricks.
Air dry clay can crack due to a few reasons, such as insufficient moisture in the clay, uneven drying, or not properly kneading the clay before shaping it. To prevent cracking, make sure the clay is moist, dry it slowly, and knead it well before using.
That is called "leather hard" clay
Most of the time, it's still called Clay. After it dries, it is/they are clay bricks.
To fix cracks in air dry clay, you can try moistening the clay slightly with water and then gently smoothing over the cracks with your fingers or a clay tool. Allow the clay to dry completely before sanding or painting over the repaired area for a seamless finish.
To fix cracked air dry clay, you can try moistening the cracked area with water and gently smoothing it out with your fingers or a damp sponge. Allow the clay to dry completely before painting or decorating it.
Leather Hard
Air dry clay can crack due to a few reasons, such as not kneading it enough before shaping, working with it too quickly, or not allowing it to dry slowly and evenly.
To make air dry clay stronger, you can try adding a small amount of white glue or acrylic medium to the clay before shaping and letting it dry. This can help increase its durability and reduce the chances of it cracking or breaking.
When you attach a piece of plastic clay to bone dry clay, the two will not bond effectively. Bone dry clay is no longer plastic and lacks moisture, meaning it won't adhere to the plastic clay properly. Over time, the plastic clay may separate from the bone dry clay, especially during firing, as they have different shrinkage rates and moisture content. To ensure a better bond, it's essential to score and slip the surfaces before joining them.
To prevent Crayola air dry clay from cracking, make sure to knead it thoroughly before use, keep it covered when not in use, and allow it to dry slowly and evenly. Additionally, you can try adding a small amount of water to the clay if it starts to dry out while working with it.
To make clay canoes, start by kneading the clay to ensure it's pliable. Shape the clay into a canoe form, smoothing the exterior and creating an interior hollow. You can add details like a textured surface or decorative elements before allowing it to dry. Once fully dried, fire the canoe in a kiln if using ceramic clay, or let it air-dry if using air-dry clay.
To fix cracked clay, you can gently moisten the clay with water and then carefully press the cracked pieces back together. Allow the clay to dry completely before handling it again.