You can buy unglazed tiles.
Home › Forums › Glass Fusing › General Fusing Discussion › Glazed Ceramic tile for kiln shelf? › You can buy unglazed tiles.
January 18, 2013 at 5:14 pm #12809
Participant
You can buy unglazed tiles. They are cheap and come in a variety of sizes.
I use them on top of a kiln shelf, I’ve never tried to use them without one.