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[[Category:LegacyClasses]]
== Photoprocesses  ==

* Presensitized boards 
* GC Chemicals PES spray 
* Riston lamination film

== Physical resists  ==

* Toner transfer with laser printer or copier- some printers won't work 
* Paint and burn off with the laser

= Materials  =

* PCBs are the primary need 
* Copper, brass for artistic purposes 
* Marble - dissolves in Hydrochloric Acid (HCl) 
* Aluminum - very exothermic, prone to thermal runaway 
* Steel - Generally, must be electrically etched away.  Beware: Stainless steel puts toxic chromium into the electrolyte.