Charbonnel Lamour Black Satin Varnish (Ground) 75ml
It allows a long etching time with no risks of scaling. It dries faster than Liquid Ground Engraver Ultraflex due to the presence of quick drying petroleum. It is harder than the Liquid Ground Engraver Ultraflex ground and, therefore, allows finer lines.
How to Use:
Apply it cold to the plate with a very supple brush, or plate coating device or pour it directly onto the inclined plate.
Before applying these grounds, it is imperative that all grease be removed from the plate with a degreasing material. Rinse under flowing water. Pour a solution of vinegar and salt on the plate. Rinse once again. Dry rapidly. Avoid putting fingers on the plate whilst carrying out these operations.
Once the ground is applied and dry, the picture is etched with a hard point in order to expose the metal beneath the ground. The plate is then placed in a bath of acid to erode the exposed metal. Once the required bite depth has been attained, the plate should be taken out of the acid bath solution and dried and the ground removed with the appropriate thinner.