Homebrew PCBs

Yeah.  I just have a hesitancy about muriatic, remembering some accidental burns years ago. :)  I accidentaly splashed a bit of this vinegar stuff on my hand in a moment where I forgot to put on gloves and nothing happened.  That kind of thing with muriatic would be very bad.  It etches beautifully – just really slow.

 

From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] 
Sent: Sunday, June 19, 2016 9:02 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: RE: [Homebrew_PCBs] Etching with vinegar, peroxide and salt

 

  

One explanation I was given is that the vinegar reacts with the chloride in salt and produces a very weak hydrochloric acid.  I tried it but it took forever to see any effect on the copper.  Much easier to go and get a gallon of muriatic acid for $10. I only use about an ounce at a time  along with 3 oz of peroxide and get boards etched in about 5 minutes.