© 2000-2012, Guadalupe Gaos - Art & Souvenir Gallery

The manufacture of copper plate etching is a manual art that includes a variety of procedures originating in fifteenth century Europe.
The techniques we most frequently use are hard ground and aquatint.
The etching is accomplished by coating a copper plate with varnish made in the traditional manner with a base of asphalt, white wax, mastic (resin), and Venetian turpentine. Once the varnish is dried, a drawing is made with a steel point which leaves a track of exposed metal. Then the plate is submerged in an acid solution for differents periods of time until the drawing is etched in low relief.
The plate is cleaned and passes to the process of aquatint to create textures and tones by applying a fine layer of powdered resin. Upon returning the plate to the acid bath, it is etched with hundreds of tiny holes which create the different tones. Now the plate is ready to be tinted.
The technique of traditional tinting and printing has been transformed by an elaborate painting technique which requires great manual skill and sense of color. Using mainly fingers, toothpicks and rubber rollers, printing ink of diverse colors is applied to the plate, enriching the original design.
Then, cotton paper is moistened and placed over the painted plate to be printed by means of a manual rolling press.
In this way, we produce limited editions rendered entirely by hand, each piece painted and printed individually, numbered and signed by the artist, thus obtaining a unique and personal value.