R. Bruce Muirhead III

R. Bruce Muirhead III

Clinton, NY
The Songstress, Intaglio
16 x 18

An intaglio technique in which acid is used to incise lines or tones into a metal plate. The specific techniques can include aquatint, lift grounds, soft ground, hard ground, and the like. In general, a metal plate is covered with an acid-resistant ground (a wax-based coating). The image is drawn through the ground using a sharp tool that breaks through the ground to the metal plate surface. The plate is immersed in a weak acid bath. The acid attacks the plate through the open lines of the drawn image. The longer the image lines are exposed to the acid, the deeper the lines become, the more ink the lines hold and the darker those lines will print. (Definition: 60 Years of North American Prints, The Boston Printmakers)