Hi, I was doing 12'x12", 1//4" thick tiles (hearth clay, with and without grog, cone 04-06 using slab roller, electric kiln ) and firing each resting on each kiln shelf with good results ,
but the quantity to be fired is pretty limited.
I try different tile setters but cracks and warping happened, even those tiles that were pre fired (or the second firing weakens them further!?)
I thought I could do porcelain(?) tiles 13x13, 1/2" thick to use as "shelves" so I can put more all- surface-supported tiles in the kiln. I also thought pre fired the "shelves"before putting them to work, metal would be the best but I know will melt...
do you have some suggestions for alternative kiln shelves?
I apologize for my massive ignorance