Cordierite Mullite Rectangle Kiln Shelf Tucker Clays When dismantled

When dismantled

you can undercut your clay while maintaining the shape of your walls

Testing in your glazes when substituting for Gerstley Borate is recommended as there are some subtle differences and impurities that could cause color shifting

curved shape to skim the sides of lines

Cordierite Mullite Rectangle Kiln Shelf Tucker Clays When dismantledThis kiln shelf is manufactured of a high refractory mullite cordierite clay body that yields a smooth, durable surface for stacking ware in your kiln. All shelves are subject to warpage at high temperatures. It is a good practice to occasionally flip the shelf in an effort to keep it straight.