Homebrew PCBs

Very poor luck with the sharpie pens, they "sort of" work, even the special red ones only "sort of work". They come off in the tank. (bubbling HCl/H2O2)

Best I have found is nail polish...

Even better is the toner, so most times it easier to reprint and re-transfer the board than to fix a bad one.

--- In Homebrew_PCBs@yahoogroups.com, Dave Bobb <dave.bobb@...> wrote:
>
> Yes, the ones we use at work are "red" label black sharpies. Ore  
> specifically, industrial acid resistant.  It takes forever to scrub  
> these off with 91% alcohol.
> 
> Sent from my iPhone
> 
> On Apr 28, 2010, at 10:21 AM, "Tony Smith" <ajsmith@...>  
> wrote:
> 
> > > Has anybody had lucks using Sharpies as resist-ink? Are there any
> > > recommendations on something better?
> >
> > I think it's the red ones that work.
> >
> > Tony
> >
> > 
> 
> 
> [Non-text portions of this message have been removed]
>