|Monthly Tech-Tip |
The background plate was decorated using Amaco Velvets and overglazed with Amaco Glaze HF-9 Zinc-Free clear. The front one was overglazed using Amaco Celadon clear. The hazing of the latter is most evident in the center area where it has been applied in a thicker layer. However this made no difference when using the HF-9 transparent. For complex designs like this it is often better to paint on the clear rather than dip, since the highly gummed Velvet underglazes impede the absorbency of the underlying body, and thus its ability to build up a layer during dip.
A ceramic compound meant to be applied to green or bisque ware and covered using a transparent overglaze. There are good reasons to make your own underglazes if you are in production.