Homebrew PCBs

http://groups.yahoo.com/group/Homebrew_PCBs/message/6566



--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...> wrote:
> I thought I saw it here, but can't find it- someone mentioned tests a
> screenprinter had done, testing inkjet on transparency for photo
> exposure. In the tests, he'd found that something like the magenta ink
> was a better blocker of UV than black ink.
> 
> Does anyone recall what I'm talking about? Or am I nuts and it was on
> a different list?
> 
> Thanks,
> Steve