Difference between revisions of "Etching"

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=Salt-water etching=
 
=Salt-water etching=
==Equipment and supplies==
+
===Equipment and supplies===
 
;Forthcoming
 
;Forthcoming
 +
 
==Procedure==
 
==Procedure==
 
;Forthcoming
 
;Forthcoming

Revision as of 13:54, 16 October 2017

Etching is a method of removing exposed metal and retaining protected metal from a surface so as to create a design or texture. In our shop, we accomplish that with non-ferrous metals in one of two ways, both of which use a etching bath (mordant), a pattern that adheres to and protects the metal surface (resist), and a source of electrical current to initiate a chemical reaction. Parts of the metal are covered and protected by the "resist", while the exposed parts are eaten away by the electric current to reveal a design.


The Jewelry and Metal Craft Shop currently supports two methods of etching non-ferrous metals: electro-etching and salt-water etching.

Electro-etching

Equipment and supplies

Etchant (mordant) - Copper Sulfate (egg,, "Root Kill"),
Plastic container,
Electric current source (e.g., manual battery charger, Rectifying power supply) with leads/clips
Copper wire ~ 16 g
copper or brass sheet
3M green scrubby pads,
brass brush
duct or packing tape

Procedure

Forthcoming

Salt-water etching

Equipment and supplies

Forthcoming

Procedure

Forthcoming