I believe this is the process, that Doris was referring to:
I've used it several times, for fine writing, and creating drawings/ illustrations on various wares. It works extremely well.
One extra step, I usually take, is to have the image/ lettering I want done on a piece of thin paper. After the base coat of underglaze is dry, I'll hold the paper on the clay surface, and trace over the design with a dull pencil. That will leave a small impression on the surface, that can be seen through the wax resist. That way, you don't have to free hand, when you go to etch through the resist.
- LeeU likes this