Grain the lithographic stone well, wash out with water and dry it thoroughly.
Cover the stone with thin and uniform layer of arabic gum dissolved with water (huber gum and distilled water 1:1).

When the gum layer is dry, drops of alcohol can be dropped on the stone. The liquid evaporates very quickly – not as quickly as acetone but faster than water. To achieve the characteristic soft, organic forms it’s recommended not to fasten the drying process (with fan or hair dryer). When the solution dries slowly the effects are better.

You can see the drawing when looking against the light – the gummed surface of the stone is a bit glossy and the areas of washes are matte and don’t reflect light.

The forms vary depending on the amount of the solution. The more liquid was on the stone the darker the stain will be (as in the gallery above). You can pour washes on top of another.

When the solution evaporates, shellac (thinned with a shellac thinner) and asphaltum (or only asphaltum) should be rubbed into the stone. After they dry the stone has to be washed with water and rolled up.

Second etching depends on the drawing.