Support or posts
Supports are refractory elements designed to support shelves, trays and other pieces during the firing process. These supports ensure that the ceramic pieces are kept in a vertical or stable position, avoiding direct contact with the kiln's internal surfaces that could cause unwanted sticking or deformation. Generally made of heat-resistant materials such as grog, mullite or silicon carbide, supports withstand extremely high temperatures without degrading, allowing uniform heat distribution around the pieces.
In addition to their basic support function, posts play a crucial role in optimizing space within the kiln, allowing simultaneous firing of multiple parts without compromising finish quality. Their design varies in size and shape to suit different kiln configurations and types of ceramic pieces. The correct arrangement of the supports contributes to efficient air circulation, promoting homogeneous firing and minimizing hot spots that could negatively affect the physical and aesthetic properties of the pieces.Interesting Fact
In medieval European ceramics, posts not only served as functional supports, but also accumulated layers of glaze from different firings. These multicolored layers formed a "historical record" visible on the surfaces of the supports. This phenomenon allowed historians and archaeologists to trace the evolution of ceramic practices and to better understand the craft traditions of the time.Helpful Tip
Regularly inspect the posts in your kiln to make sure they are free of cracks, wear or deformations that could compromise the stability of the shelves during firing. Replace any damaged posts immediately and consider using high-quality materials that offer greater thermal resistance and durability. In addition, you can strategically arrange the posts to maximize space and improve air circulation, which will result in more even and efficient firing of your ceramic pieces.
