We will never get tired of seeing a glaze disaster lift right off the Advancer Shelf! The surface porosity of Advancer Kiln Shelves is less than 1%, this is what makes them glaze resistant. Cordierite shelves are up to 20% porous and glaze can run down into the body the shelf, even with kiln wash applied. This makes cleanup much more time consuming and can leave divots which decrease the service life of the cordierite shelves. Advancer Kiln Shelves will last decades with proper care and maintenance.
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