Twenty-five litres? I thought 5 litres would be a life-time supply! I
haven't adjusted the cupric choride I have in the big picnic cooler
since I made the solution, and I have made lots of boards in it since,
but it seems to be slowing, so it's time to check the density and
titrate to determine acidity level.
How the heck am I going to use 25 litres, do you imagine?
Grant
--- In
Homebrew_PCBs@yahoogroups.com, Adam Seychell <a_seychell@y...>
wrote:
> HCl is cheap you can just buy a 25L drum for few more dollars than 5L
> from a hardware store. Look up your local business directory under
> building supplies and anyplace who deals with bricks should also sell
> HCl as cleaner.
>
> Adam
>
>
> grantfair2001 wrote:
> > In some locales it is used to treat swimming pools, the Home Depot
> > stuff was used to clear drains (I think) and treat new concrete
> > floors. There is one other big chain like Home Deport, Rona, and their
> > website says they sell it.
> >
> > The less time I spend looking for the damn stuff the better, is why I
> > asked. I hope someone who knows for sure will give me the info (if
> > Rona falls through).
> >
> > Grant
> >
> > --- In Homebrew_PCBs@yahoogroups.com, "Dave Mucha" <dave_mucha@y...>
> > wrote:
> >
> >>--- In Homebrew_PCBs@yahoogroups.com, "grantfair2001"
> >><grant.fair@s...> wrote:
> >>
> >>>I went to Home Depot to get more hydrochloric acid to top up my
> >>
> >>cupric
> >>
> >>>chloride etchant. They don't sell it anymore because of safety
> >>>requirements regarding storage!
> >>>
> >>>Anyone know of another source in the Toronto area?
> >>>
> >>>Grant
> >>
> >>I would check other smaller hardware stores.
> >>
> >>
> >>Is it used in any industries like floor cleaning or stone/granate
> >>places ? then you could go to suppliers in those inducstries.
> >>
> >>
> >>
> >>
> >>Dave
> >
> >
> >
> >
> >
> > Be sure to visit the group home and check for new Bookmarks and files:
> > http://groups.yahoo.com/group/Homebrew_PCBs
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >