Homebrew PCBs

Charlie,

I would prefer something that I can dip the part into and have it come out with a uniform thickness. But since I have not seen anything like this as a homebrew, I suspect it isn't that simple. Any chemists out there to explain why?

Rick

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Missouri Guy
Sent: Thursday, March 21, 2013 5:43 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] Re: etching the OD of a cylinder to create a graduated dial

 >Got any homemade photo resist formulas?

Now THAT would be great!!!!  Something that can be sprayed on with a "household" sprayer.  AND, some kinda stuff that would have a good shelf life.

Charlie

On Thu, 21 Mar 2013 11:20:06 -0700 "Rick Sparber" <rgsparber@...>
writes:
  
Cary,

I found this information very good for etchant formulas but all of the resists are non-photo. Got any homemade photo resist formulas?

Rick