I am attempting to make some test tiles for glaze testing. I made a 1/4" slab from various clays, then cut 3"x3" tiles. I even remembered to put a hole in each for later organizing, and to partially texture the face of each tile.
My problem: when the tiles dried, they curved. I dried them flat on a sheet of newspaper on a plywood surface. At first, everything was covered with plastic sheeting, but they wouldn't dry at all that way. I *loosely* covered them, and even turned each over every day. Still, they warped.
I'm thinking of drying the next batch on a wire grille so air can circulate underneath. Does anyone have any suggestions? Thanks.
Fred