Determination of Potential Biopolymer Substitutes for Intaglio Etching Constituents Based on Rheological and Adhesive Properties Gabrielle Bock, Chemistry and Studio Art, is attempting to determine a non-proprietary, non-toxic substitute to use in an intaglio etching ground, which is the process of using acid or mordant to cut into metal surfaces to create a design. “I read more Gabrielle Bock