Wednesday, 12 April 2023

Etching 3:Mordants

Mordants are the chemicals, generally acids that are used to deliberately corrode metal. 
The modrant needed for copper is water and Nitric Acid. It generally is 1 part nitric(50) and 1 part water(50) .
This is what it looks in the nitric acid and water(3/04/2023) 

A feather is needed to get rid of the bubbles that will appear on the metal so it is advisable to check on your piece regularly as well as having a mask to work easier near the acid work space. 
After being removed from the acid. Advisable to have a smoother application of bitumen rather than this trial thick consistency. (04/04/2023)

Once removed from the acid I had then added my design that I wanted etched onto the copper plate. It then goes back into the acid for maybe like an hour and a half to get a good depth of the design on the plate. (04/04/2023)


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