Advancer® kiln shelves in multi-sided shapes designed for top-loading electric kilns were first introduced in 2003. These thin and lightweight kiln shelves are made from an advanced nitride-bonded silicon carbide composition that is distinguished from conventional nitride-bonded silicon carbide in that it is significantly stronger, thinner and much more resistant to oxidation. Advancer kiln shelves are 19 times stronger and weigh 50% less than conventional 1-in.-thick cordierite kiln shelves. In addition, they are made flat to stay flat so there’s no warping, even after many firings under heavy loads.
Benefits such as high thermal conductivity, low mass, light weight, stability (i.e., no warping), and resistance to glaze sticking and penetration have gained these shelves increasing acceptance from artists, educators, production potters, and tile manufacturers. Despite their popularity, questions are often raised regarding the appropriateness of the shelves’ use in resistance element electric kilns. Specifically, “Are they safe to use in my electric kiln?”