Electro-etching introductory workshop at the University of Sevilla.
20 hour course for graphics teachers of the college who were interested in the process of low-risk etching.
Theory : History of electro-etching, basis of electrolysis and its application to etching and electroplating.
Practice: - Set up a portable tank, connection to the power supply, electrodes and cathode grid, preparation of the electrolyte
- Etching on copper plates using different varnishes and electrotint of open bite
- Application of graphite ink as a varnish to draw lines and electrotint
- Set up for "passive" electro-etching of zinc plates, this process does not use electricity and can be practiced without a power supply
The teachers who assisted to the course and the workshop technicians were impressed with graphic results and acknowledged that it was safer than the traditional processes. They showed their interest to create a workshop where they could experiment more with the techniques in the future, also to set up an electro-etching unit in the college workshop to practice this technique.
Pictures from the workshop and etchings
