Amaco
PC-53 Ancient Jasper Potter’s Choice Glaze
Ancient Jasper is a fluid, opaque glaze that transitions from soft black to olive green to rust red as it is applied thicker. Ancient Jasper benefits from a heavier application. This glaze will produce reds on all clay bodies, although iron-bearing clay bodies will produce the widest range of colours. No special cooling cycles or soaks are needed. Soaking can actually diminish the reds.
$34.99
This colour is food safe. Potter's Choice is a cone 5/6 glaze made to give the look of a reduction firing in an electric kiln. These glazes move as they fire. They break where they run thin over an edge or a carved line and float a second colour to the surface, which is why they show best on textured work. The line is also made for layering over a Celadon, a Satin Matte or another Potter's Choice colour. Two coats over two works for one Potter's Choice over another, and three over three when a Celadon or a Shino is underneath. If the glaze underneath is a fluid one the layered result can run. On its own it takes 3 to 4 brush coats over cone 04 bisque, with each coat left to dry before the next, and a medium-speed firing to cone 5 or 6, 1186 to 1222°C. The clay body changes the result too, so the same glaze will not fire the same over a buff body as it does over a dark one. Fire a test tile with each new batch. Select colours are also available in gallons.