Researchers: Laura Sheys and Andrea Santos, 2011
Updated Research: Olivia Arau McSweeney, Pace Knowles-Donnelly, Margo Temple, 2019
This technique uses sandpaper to create a smooth even aquatint on a copper plate grounded with BIG (Baldwin Intaglio Ground). The grounded plate is run through an etching press with 400 grit sandpaper to create an impression. which is then etched in a Ferric Chloride bath.