Testing your clay is a really important factor in determining how it dries.
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Grog does have the slight disadvantage of making the clay less easy to manipulate, so is not suited to more intricate projects.ĭepending on the clay that you use, shrinkage can be anywhere from 2% to 10% during the drying process, which doesn’t include the shrinkage after using a kiln to fire your project.Ĭlays with the highest shrinkage can crack if not dried evenly and so it’s important to try and ensure even drying. The fact that the grog has been fired means that it doesn’t absorb water and therefore dries faster. Grog is essentially finely ground clay that has been pre-fired. Īdding grog into your clay will help reduce cracking, reduce shrinking and your clay will also dry faster. It’s worth remembering that the greater the shrinkage, the more likely your clay is to crack. This means that they will take longer to dry, and shrinkage will be more significant when fired. Clays with a high level of plastic and a finer composition will have a higher water content (similar to porcelain). It therefore stands to common sense that the different make up of clays plays a big part in how long it takes for pottery to dry before firing. When crafting a larger or thicker piece, it’s worth using extra time to make sure your pottery is totally dry.Īll clays have a different make up, different levels of moisture and different additives. If you live in a humid climate and want to ensure that the clay is fully dried, then it is worth leaving pottery for an additional week to ensure it is completely dry. If your pottery is half an inch thick or greater, then it is recommended to leave it to dry for up to three weeks. However, this can also be a disadvantage as sometimes the clay can dry too quickly and crack or crumble and therefore compromise the integrity of the piece. Even larger sized pottery will be completely dry in a week and maybe even sooner dependent on how it has been stored. To negate this, it’s best to give the pottery an extra week or even two - the longer the better to ensure that the pottery is thoroughly dried out.ĭry climates are particularly useful for pottery makers. There are, however, many factors that can affect this including climate, the size of your piece, the thickness, and the drying technique you use.Ī humid climate ensures that your pottery can retain its moisture, even after a week. The basic premise is that pottery should be dried slowly and steadily in order to be effectively dried throughout.
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Failure to do so can compromise the end result, causing the pottery to become frail, cracked or even breaking once in the kiln. Now you can imagine, create and then 3D print your own pot and order it straight from the app! Convert virtual pots into real objects which can be displayed on a shelf or be given to family or friends.Once your pottery has been designed and formed, it is vital that it is completely dry before firing. Climb in the rankings, compete with talented LCP artist and share your own creations to surprise your friends.
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