Pottery stilts are a fundamental tool used in ceramics, and understanding their purpose is crucial for any pottery enthusiast. These small, unassuming devices play a vital role in the firing process of clay objects, ensuring that they don’t stick to the kiln shelves or warp under the intense heat. By elevating pottery pieces and creating a barrier between them and the kiln surface, pottery stilts enable artists to achieve consistent and flawless results. Whether you’re a curious beginner or a seasoned potter, delving into the world of pottery stilts will unveil a fascinating aspect of pottery making that often goes unnoticed.

Understanding Pottery Stilts

Definition of Pottery Stilts

Pottery stilts are ceramic tools used in the firing process to elevate pottery pieces off the kiln shelf, allowing for better heat circulation and preventing them from sticking to the kiln surface. They are essentially small supports that keep the pottery off the ground during firing, ensuring stability and preventing damage.

Historical Background of Pottery Stilts

Pottery stilts have a long history and have been used in ceramics for centuries. The earliest known examples of their use date back to ancient China, where they were widely employed in the production of Chinese porcelain. From there, their use spread to other cultures and regions, becoming an essential tool in pottery production worldwide.

Different Types

There are various types of pottery stilts available, each designed to meet different needs in the firing process. Some common types include three-pointed stilts, four-pointed stilts, and tripod stilts. Each type offers specific advantages and is chosen based on the shape and size of the pottery being fired.

The Purpose of Using Pottery Stilts

Allowing for Better Heat Circulation

One of the primary reasons for using pottery stilts is to ensure even heat distribution during the firing process. By elevating the pottery off the kiln shelf, air can circulate around the entire piece, allowing for consistent heating. This helps to prevent uneven firing and ensures that the pottery is heated at a uniform rate, reducing the risk of cracks or warping.

Avoiding Glaze from Sticking to Kiln

Another important purpose of pottery stilts is to prevent glazed pottery from sticking to the kiln shelf. During firing, the glaze on the surface of the pottery can melt and become sticky. Without stilts, the pottery would adhere to the kiln shelf, resulting in damage and potential loss of the piece. Stilts elevate the pottery, keeping it separated from the kiln shelf, and allowing for easy removal once firing is complete.

Aiding in Stability during the Firing Process

Pottery stilts also play a crucial role in maintaining stability during the firing process. Without proper support, pottery pieces may slump or collapse under their weight when exposed to high temperatures. By using stilts strategically placed underneath the pottery, it remains stable and intact throughout the firing process.

Composition of Pottery Stilts

Materials Used

Pottery stilts are typically made from high-temperature resistant ceramics, such as a type of clay called fire clay or porcelain. These materials are known for their ability to withstand extreme temperatures without deforming or compromising the pottery being fired.

Variations in Shape and Size

Pottery stilts come in a variety of shapes and sizes, each suited for different pottery forms. Three-pointed stilts are commonly used for small and delicate pieces, while four-pointed stilts offer stability for larger and heavier pieces. Tripod stilts, as the name suggests, have three legs that provide extra support for irregularly shaped pottery.

Durability Factors

The durability of pottery stilts depends on several factors, including the quality of the materials used and their design. It is important to choose stilts made from high-quality, heat-resistant clay, as lower-quality materials may crack or warp under high temperatures. Additionally, stilts with a well-designed shape and structure are more likely to withstand repeated use, ensuring longevity and reliability.

How to Use Pottery Stilts

Correct Placement in the Kiln

To ensure proper use of pottery stilts, it is important to place them correctly in the kiln. Stilts should be evenly spaced and positioned in a way that provides stable support for the pottery being fired. Care should be taken to avoid overcrowding the stilts, as this can lead to unstable placements and potential damage to the pottery.

Positioning of the Pottery

When using pottery stilts, it is crucial to position the pottery securely on top of the stilts. The pottery should be centered and balanced, ensuring that it is not leaning or wobbling. This helps to minimize the risk of the pottery falling or shifting during the firing process, maintaining its stability and integrity.

Safety Measures

When handling pottery stilts, it is important to take certain safety measures. Stilts, especially when heated, can be very hot, so it is essential to wear heat-resistant gloves or use tongs to handle them. Additionally, care should be taken to avoid contact between stilts and any flammable materials in the kiln, as this can lead to a fire hazard.

Choosing the Right Pottery Stilts

Considering the Size of the Pottery

When selecting pottery stilts, it is essential to consider the size and weight of the pottery being fired. Smaller pottery may require smaller, more delicate stilts, while larger pottery may need more substantial and sturdy stilts to provide adequate support. Choosing the right size of stilts helps to ensure stability and prevent damage during firing.

Determining the Needed Heat Resistance

The heat resistance of pottery stilts is a crucial factor to consider. Different clays and materials have varying heat resistance levels, and it is essential to choose stilts that can withstand the specific firing temperatures required. Failure to select properly heat-resistant stilts can lead to deformities, warping, or even breakage of the pottery during firing.

Assessing the Glaze Consistency

The type and consistency of the glaze being used can also influence the selection of pottery stilts. Thicker or runnier glazes may require different stilts to accommodate their unique properties. It is important to choose stilts that can support the weight of the glazed pottery and prevent glaze from running off or pooling during firing.

Common Problems Encountered with Pottery Stilts

Deformities due to Excessive Heat

One common issue that can arise when using pottery stilts is deformities in the pottery caused by excessive heat. If the stilts used are not heat-resistant enough or if they are placed too close to the pottery, they can transfer excessive heat, resulting in unintended alterations to the shape or texture of the pottery.

Sticking of Glaze to Stilts

Another problem that potters may encounter with pottery stilts is the sticking of glaze to the stilts. If the glaze used is not properly formulated or is too runny, it can stick to the stilts during firing, making removal difficult and potentially damaging the pottery. This issue can be mitigated by using stilts with a non-stick coating or ensuring that the glaze consistency is appropriate.

Instability during Firing

In some cases, pottery may become unstable on the stilts during the firing process. This can occur if the pottery is not positioned securely or if the stilts are not placed correctly. The instability can lead to the pottery falling or shifting during firing, resulting in damage or even complete loss of the piece. Proper care should be taken to ensure stability during the entire firing process.

Alternative Tools to Pottery Stilts

Use of Kiln Posts

Kiln posts are cylindrical ceramic supports used to elevate pottery off the kiln shelf, similar to pottery stilts. They are available in various sizes and are often used when firing larger or heavier pottery. Kiln posts provide stability and allow for better heat circulation, ensuring even firing of the pottery.

Investing in Multi-tiered Racks

Multi-tiered racks are another alternative to pottery stilts. These racks consist of multiple shelves or levels, allowing for stacking of pottery during firing. They provide stability and can accommodate a larger number of pieces in a single firing, maximizing the kiln’s capacity.

Understanding Catch Plates and Saucers

Catch plates and saucers are flat ceramic discs that are placed under the pottery to catch excess glaze or to prevent drips from damaging the kiln shelf. While not direct alternatives to pottery stilts, they serve a similar purpose in protecting the kiln and preventing glaze from sticking.

Should Beginners Use Pottery Stilts?

Pros and Cons for Beginners

Using pottery stilts as a beginner has both advantages and disadvantages. On the one hand, stilts can provide support and stability for beginners’ pottery pieces, reducing the risk of damage during firing. They also allow for better heat circulation, resulting in more even firing. On the other hand, beginners may find the selection and use of stilts to be challenging, especially when choosing the right size and shape for their pottery.

When to Start Using Pottery Stilts

Beginners can start using pottery stilts as soon as they feel comfortable and confident in their ability to handle them. It is important to have a good understanding of the pottery firing process and the specific requirements of the pieces being fired before incorporating stilts into the workflow. Some beginners may choose to start using stilts right from the beginning, while others may wait until they have gained more experience.

Suggestions for Beginner Use

For beginners using pottery stilts, it is advisable to start with smaller and simpler pieces. This allows for easier positioning and reduces the risk of instability during firing. It is also beneficial to seek guidance from experienced potters or instructors to ensure proper selection and use of stilts. As beginners gain more experience, they can gradually move on to larger and more complex projects, adapting their stilt usage accordingly.

How to Care for and Store Pottery Stilts

Cleaning and Maintenance

Proper cleaning and maintenance of pottery stilts are essential to ensure their longevity and effectiveness. After each use, the stilts should be thoroughly cleaned to remove any residue or glaze that may have adhered to them. They can be cleaned with water and a soft brush, making sure to remove all debris. Regular inspection should be done to identify any cracks or damage that may compromise their performance.

Ideal Storage Conditions

Pottery stilts should be stored in a dry and clean environment to prevent moisture or dirt from affecting their quality. They should be stored away from direct heat sources and potential hazards that may cause them to break. It is recommended to store them in a padded container or individually wrapped to protect them from damage.

Replaceable Parts

Some pottery stilts may have replaceable parts, such as the legs or the top-supporting disks. These parts can wear or become damaged over time and should be replaced when necessary. It is advisable to check with the manufacturer or supplier for information on replacement parts and proper installation.

Impact of Pottery Stilts on Finished Pottery Project

Differences in Appearance or Texture

Using pottery stilts can have an impact on the appearance and texture of the finished pottery project. When stilts are appropriately selected and placed, they can contribute to even heat distribution and prevent deformities, resulting in a more consistent appearance. However, improper use or the selection of unsuitable stilts may lead to unintended changes in texture or shape.

Impact on Glaze Distribution

Pottery stilts can also influence the distribution of glaze on the finished pottery. When properly placed and positioned, stilts help prevent glaze from pooling or running off the pottery, resulting in a more even and controlled glaze application. Stilts can affect the glaze’s flow, creating unique patterns and effects on the pottery’s surface.

Connection to Traditional Pottery Techniques

The use of pottery stilts is deeply connected to traditional pottery techniques and practices. Throughout history, potters have relied on stilts to achieve specific firing results and overcome technical challenges. By understanding and incorporating stilts into their own practice, contemporary potters can establish a connection to the rich history and craftsmanship of pottery making.

In conclusion, pottery stilts are essential tools in the world of ceramics. They provide stability, promote even heat distribution, and prevent glaze from sticking. Whether you are a beginner or a seasoned potter, understanding the purpose, composition, and proper use of pottery stilts is crucial to achieving successful firing results. By carefully selecting the right stilts for your pottery, practicing correct placement and positioning, and implementing appropriate safety measures, you can enhance the quality of your finished pieces and embrace the traditional techniques that have been passed down through generations of potters.