George Boyle
WED clay, a water-based clay, was originally manufactured for Walter E. Disney and his design team to sculpt characters for Disneyland. It is a popular choice for sculpting due to its ability to remain workable for extended periods when adequately stored. However, the drying time of WED clay varies and depends on various factors, including temperature, humidity, thickness of the sculpture, and storage methods. While some sources suggest that WED clay dries rock hard, it is not intended for use in its completely dried state. Instead, it is typically used for special effects and mould-making.
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What You'll Learn
Drying time depends on thickness
The drying time for clay depends on several factors, including the thickness of the clay piece. Thicker clay pieces will take longer to dry compared to thinner ones. Similarly, a thick sweater will take longer to dry than a thin t-shirt. Therefore, if you are working on a thick sculpture, you should expect a longer drying time.
Air circulation can significantly impact the drying time of clay. Good air flow helps speed up evaporation, and using a fan can increase air circulation around the clay piece, accelerating the drying process. However, it is important to keep the fan on a low setting to avoid warping or cracking the clay.
The temperature and humidity of the environment also play a crucial role in determining the drying time of clay. Warmer temperatures generally lead to faster drying, while lower humidity levels promote quicker drying. For example, clay will dry faster on a warm and breezy day compared to a cold and humid day. Therefore, the weather conditions can significantly influence the drying time of clay.
Additionally, the type of clay used can affect the drying time. Different types of air-dry clay have varying drying times. For instance, soft air dry foam clay typically dries within 24-48 hours, but this can vary depending on factors such as humidity. In high-humidity environments, it may take up to 5 days for the clay to fully dry.
Moreover, the application of certain products can extend the drying time of clay. For example, WED clay can be kept workable indefinitely by covering it with damp paper towels, a garbage bag, and storing it in a cool, dark place. Regularly checking on it and refreshing the paper towels can further extend its drying time.
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Warmer temperatures speed up drying
The drying time of Wed clay depends on several factors, one of which is temperature. Warmer temperatures generally speed up the drying process. This is because the water content in the clay evaporates faster in a warmer environment. Similar to how laundry dries faster on a warm, breezy day than in a cold, damp basement.
However, it is important to note that extreme heat should be avoided as it can cause cracking and damage to the clay. Instead, a steady, warm temperature is ideal for drying Wed clay. This can be achieved through the use of insulation and drywall to regulate the temperature and create a consistent environment.
Additionally, air circulation can also impact the drying time. A gentle flow of air can speed up the evaporation process, but it is important to avoid strong fans or wind that could warp or crack the clay.
To maintain the ideal temperature and air circulation, it is recommended to keep the clay in a controlled environment, such as a studio or workshop, rather than an outdoor space that is subject to fluctuating weather conditions.
By understanding the impact of temperature and air circulation on the drying process, one can better manage the drying time of Wed clay and avoid potential issues such as cracking or uneven drying.
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Humidity impacts drying time
The humidity of the environment in which clay is drying is one of the most significant factors that affect the drying time. When there is too much moisture in the air, clay will take longer to dry. Conversely, dry air promotes faster drying.
To reduce the impact of humidity on clay drying time, try to work in a well-ventilated area and use a dehumidifier if necessary. Covering the clay with a plastic sheet or bag can also help create a microclimate around the clay, which can regulate moisture content. However, it is important to ensure that the plastic does not touch the clay, as this can cause the surface to become sticky or tacky.
The thickness of the clay is another crucial factor. Thicker pieces of clay will take longer to dry than thinner ones. This is because the moisture in the clay needs to evaporate from both the surface and the interior. Therefore, it is recommended to keep the clay thickness under 1 inch (2.5 cm) for faster, more even drying. For thicker pieces, build in layers, allowing each layer to partially dry before adding the next.
Air circulation can also significantly impact drying time. A fan on a low setting can be used to increase airflow around the clay piece, but keep it on a low setting to avoid warping or cracking. In addition, creating hollow shapes instead of solid ones and increasing the surface area of the clay piece can speed up drying.
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Clay should be covered when not in use
The drying time of WED clay varies depending on the thickness of the clay, the temperature, and the humidity of the environment. Soft air dry foam clay typically dries within 24-48 hours, but it can take up to 5 days in high humidity environments. WED clay is a water-based clay that will dry out rock hard and can sometimes grow mould. It is important to cover WED clay when not in use to prevent it from drying out.
One way to cover WED clay when not in use is to wrap it in plastic wrap. This is a common method to prevent clay from drying out, as it helps to keep air from reaching the clay. Another option is to wrap the clay in a damp cloth, such as durable and washable burlap, to help retain moisture. Spritzing the cloth with water can also help keep the clay moist.
Additionally, storing WED clay in a sealed container or plastic bag can help to preserve its moisture content. For larger amounts of clay, a metal or plastic container with a lid can be used, lined with a large plastic garbage bag. It is important to monitor the clay periodically to ensure it is not drying out, and a spray bottle can be used to add moisture to the clay or the cloth it is wrapped in.
By covering and properly storing WED clay when not in use, it can be kept workable for weeks or even months. This allows for flexibility in the creative process, as artists can take their time and make changes to their sculptures without worrying about the clay drying out. Proper storage also helps to preserve the clay, ensuring it does not go to waste.
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Clay can be dried indefinitely
The environment in which the clay is drying is a key consideration. Warmer temperatures and good air circulation tend to accelerate the drying process, while high humidity can prolong it. In dry climates, pottery can dry within a week or even sooner, but there is a risk of the clay drying too quickly and cracking or crumbling. Therefore, it is recommended to store clay in a cool, humid place with good ventilation to prevent it from drying out too rapidly. Additionally, ensuring even drying is essential to avoid cracking, as uneven drying can cause tension and cracks in the clay.
To slow down the drying process and maintain the workability of the clay, it is advisable to keep the clay covered when not in use and spritz it with water to maintain moisture. This method can keep the clay workable for weeks or even months. However, it is important to note that the clay should be stored in a cool, dark place and regularly checked to refresh the moisture.
Furthermore, the presence of additives in the clay can impact the drying time. For example, adding grog (finely ground pre-fired clay) can reduce drying time, but it may also make the clay less malleable. On the other hand, paper clay, which contains paper fibre, can be allowed to dry and then fired, resulting in minimal shrinkage or cracking due to the paper's ability to transmit water to the sculpture.
Lastly, while air-drying is a common method for drying clay, it is possible to use an oven or kiln for faster results. However, this requires caution, as excessive heat can cause the clay to burn or melt, and it may also increase the likelihood of cracking. Therefore, it is generally recommended to allow clay to air dry naturally, ensuring it is thoroughly dried before painting or further manipulation.
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Frequently asked questions
The time it takes for WED clay to dry depends on various factors. WED clay is a water-based clay that will dry out hard and can sometimes grow mould. To prevent it from drying out, it should be kept covered and moist.
To prevent WED clay from drying out, cover it with plastic wrap or bags and spritz it with water. You can also store it in a cool, dark place and cover it with damp paper towels.
Clay is ready for the next step when it is leather hard. It will be drier, harder, and paler than fresh clay, but will still feel cold due to its high water content. At this stage, it is brittle and will crumble if bent.
Clay dries faster in warm and dry conditions with good air circulation. You can use a fan to increase airflow, but keep it on a low setting to avoid warping or cracking the clay.
