On Fri, 30 Jul 2004 19:39:48 -0000, mikezcnc <
eemikez@...> wrote:
> Stefan, thanks for the suggestion. Do you soak with acetone and then
> rub with hte edge of PCB? Or just start with the edge of PCB? Is
> there a need for aceton in the end? I hate it equally as you do.
>
> I may have read about that ultrasonic cleaning from you then. Mike
>
No i use no solvent at all (maybe afterwards a wipe with IPA (you better
substitute
it with water and soap or something for the obvious reasons ;-) ).
It is only to get the small scratched-off debris off the board.
It might be the old HP laser jet III toner is especially brittle and thus
it works so well.
the toner just flakes off when scraping with the edge of teh PCB.
(Kind of like scraping wall paint or hardened concrete/mortar off tools if
you
ever did that..)
When using acetone "soaking" isn't necessary at all, just wet a rag and
wipe.
But i don't do that any more 'cause the scraping is much easier.
The board usually is slightly wet when i scrape (from soaking and peeling)
but
it also works with dry board.
ST