A non-toxic etching ground. Techniques ranging from soft and hard ground, photo etching, marbling, relief etching, sandpaper aquatints and coffee lift are but a few which can be explored.
The colours are a matter of personal preference. Both grounds will work in the same way and will do all the processes from coffee lift to icing sugar aquatint. The colours are a matter of personal preference.
-black looks similar to a traditional ground, you can see impressed or inscribed marks in it clearly.
-red allows you to see preliminary drawing made on top of the ground.
To remove use an alkaline citrus cleaner such as Mystrol or polish off with Brasso.