Homebrew PCBs

Speaking of which, anyone here know what process/materials I need to sensitize 
bare copper-clad boards, for positive-exposure?

Cheers,
-Neil.


On Tuesday 01 July 2003 13:41, Leon Heller scribbled:
> It's a good idea to use the pre-coated PCB material fairly soon after
> buying it, as the shelf-life is limited. I find I get rather poor results
> when using stock much older than about six months. I tend to accumulate a
> lot of odd-sized pieces of unknown vintage, so I need some sort of FIFO
> technique.
>
> Leon