Homebrew PCBs

Confirmed - JB Weld is not conductive.  

Chris



--- In Homebrew_PCBs@yahoogroups.com, "Frank P" <qz9090@...> wrote:
>
> JB Weld is not conductive...
> 
> http://www.jbweld.net/faq.php
> 
> 
> 
> Frank P.
> 
> --- In Homebrew_PCBs@yahoogroups.com, AGSCalabrese <agscal@> wrote:
> >
> > >
> > > On Jun 5, 2010, at 2:13 PM, Chris wrote:
> > >
> > > One of the things I don't like about making PCBs is soldering in a  
> > > bunch of wires to connect top traces to bottom traces. The more  
> > > surface mount stuff I use, the more often I need to add special vias  
> > > as I no longer have component legs to use for that purpose.
> > >
> > > I have used J-B Weld on a number of "emergency fixes" over the years  
> > > and have been impressed with its utility. I believe this is a  
> > > metalized epoxy which I assume should be conductive. I just mixed up  
> > > a smal batch and will have to wait till late tonight or tomorrow to  
> > > check it when it finally cures.
> > >
> > > If this does conduct, then I was thinking I could apply this way....
> > >
> > > 1) Etch board
> > > 2) Tin board
> > > 3) apply clear contact paper to both faces of PCB
> > > 4) Drill all via holes
> > > 5) Use a spatula to smear the epoxy into all of the holes
> > > 6) After curing, remove contact paper
> > >
> > > I suspect I might have small bumps of epoxy which if are a problem,  
> > > a light sanding would knock them down. If the sanding is required I  
> > > could put the board back in the liquid tin again.
> > >
> > > I probably won't be able to do a full test for a couple of weeks but  
> > > thought I would announce it to see if anyone else has tried this.
> > >
> > > Chris
> > >
> > >
> > >
> > > 
> > >
> > 
> > Intergoogle says that JB Weld is not conductive.
> > You may find this interesting....
> > http://www.circuitmart.com/mart/49690.shtml
> > Gus
> > 
> > [Non-text portions of this message have been removed]
> >
>