Homebrew PCBs

Do you do this after the board has already been developed and dried, 
then hardened, or is this how you do the initial develop?

--Rick

On 1/10/2014 12:26 AM, Russell Shaw wrote:
> Either reduce the exposure time, or better still (i found) is develop 
> the board
> in weak NaOH stripper. First put the exposed board in a tray of warm 
> water, then
> add some 10% conc. NaOH while sloshing. Continue sloshing or brushing 
> over with
> a paint brush for a minute or two. If there's no change, add more NaOH 
> and
> repeat until the unexposed resist is properly removed, then rinse in 
> water. It
> gives an excellent result for over-exposed boards.