Editing Quickstartguide talk:Litho (section)

=== Washing out and rolling up ===

This step removes the drawing materials from the stone and replaces it with non drying black ink.

First the stone is re-gummed with plain gum, buffed down to a thin layer and dried. This helps to re-establish the image and non-image areas and thins the gum layer to ensure enough of the drawing material is removed.

Pure turpentine is then sprinkled and rubbed over the surface of stone – this dissolves and removes the greasy drawing materials.

The excess turps is wiped off with a cloth, and then a wet rag is used to remove the gum arabic from the first etch. A damp cloth is wiped over the stone in order to remove the excess
water but keep the stone surface damp.

Non-drying black ink is then rolled onto the stone using a nap
roller, until the image in the stone is clearly visible, re-damping
the stone between rolls to keep the surface from drying out.

Once the image is fully rolled up, the stone is then dried and
dusted with french chalk, before a second gum arabic etch
is applied. The gum etch is then buffed down to a thin layer
and dried, and the stone should be left to rest for at least a
few hours before proofing.