Lascaux Black Coating for liquid Hard Ground 500 ml
If you prefer a black surface, paint the plate with diluted black coating or spray it on the plate with the airbrush. For brush: Paint Lascaux Black Coating diluted 1:1 with water. When spraying dilute with 2-3 parts water.
Leave the Lascaux Black Coating to dry for a few minutes until it is touch dry. The black coat has to be removed in lukewarm water before etching.
All working processes with this product are thourougly described in my book:
“Handbook of Non-Toxic Intaglio”