View Full Version : Etching Brass

07-11-2007, 11:30 AM
I have a model railroad part made of brass and I want to etch it so paint will adhere (using a airbrush) any ideas ???????????
It is made of many pieces soldered together so I don't want the etching to attack the soldered joints.


07-11-2007, 12:55 PM
use dilute hydrochloric acid
chances are, it was soldered with killed spirits flux, which is zinc dissolved in HCl.
dunk and check til you get the key you need

07-11-2007, 02:01 PM
I had remembered this post from a while ago. Finished product looks real good. Perhaps this may suit your application and be of some help.


Mike Burdick
07-11-2007, 03:50 PM
Can you sandblast the part?