Setters For Bone Chine, How To Prevent Warping And Glazing It
Hi there
I am trying to make some very small vases that are slip-casted bone china.
I am a newbie at bone china and am worried about the issue of warping and glazing.
I bought some Alumina Hydrate and I intend to make a mound of it on the kiln shelf and then to situate the vases, rim down, on it, a little buried. I will also experiment and fill the vase with alumina hydrate rather that placing it on the shelf. I also bought silver sand because I heard of someone that buries her piece
Using the same clay body won't work, it will warp as much as any other shape.
I use a higher firing clay body ... Cone 10 - 12 ... to make mine and they stand up quite well.
You can glaze the inside during high firing, then glaze the outside at a lower temperature. Warming the fully fired pots helps the glaze stick to it so you can successfully low fire it on.