This will help heal the cracks depending on the moisture content of the piece. Make sure you allow the patched piece to dry out perfectly. So, you might see cracks even post the firing process. If you fail to do this, when firing, the main piece and the piece in the crack would expand and fire at a different rate. You also need to ensure that the wet clay you just patched into the crack dries out to the bone dry stage. Make sure the surface is completely leveled up so that the crack doesn’t expand during the firing process. This set of 30 pieces is ideal for your daily crafting needs. If you are looking for a good pottery toolset to complete this process, you can try the Meuxan Pottery Tools Clay Sculpting Set. Next, place a small piece of soft scored clay into this crack and now compress the same with the help of a rib to ensure the surface smoothens out. To erase this memory of cracking, you need to score deeper into the cracks and make it larger than it originally is. Now, this might seem counterintuitive, but a great way to correct any developing cracks in bone dry clay is to dig in further. Soft leather or leather hard stage is the best point to correct the crack, and the problem can worsen if the pottery piece attains a bone dry stage. It is normal for cracks to appear in vulnerable sections as a clay piece starts to dry out! You might notice cracks building up through the molding process or after there is added stress like new parts or coils. Moreover, cracks can develop in sections where a coil is connected with another and even in areas where 2 walls meet. The process might take as long as a week depending on how thick the clay piece is.įeatures of Bone Dry Clay Surface Warmth Not as cold as previous stages of pottery ware Fragility Very fragile Appearance Chalky looking Reversal Possible Yes Molding Possible No Fired No (Stage before firing) Contains Water No Color Greyish whiteĬracks start mostly at the points with structural weakness. This is because a good amount of moisture has evaporated from the clay, which was originally lowering its temperature. When you hold bone dry clay in your hand, it would feel similar to the room temperature and not cool like its previous stages. Bone Dry Pottery is a stage in the pottery process where the greenware has dried to its maximum possible extent before being fired.
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