Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> On Mon, 17 Apr 2006 22:49:00 +0200, Steve <alienrelics@...> wrote:
> 
> >
> >
> > Patience is the key. Underhead cleaning, cleaning the parking station,
> >
> > etc.
> >
> > http://www.polyphoto.com/tutorials/PrintHeadCleaning/
> >
> >
> > Steve Greenfield
> >
> 
> 
> Ok, that is great, but of course i have questions ;-)

Oh, bugger.

> You write:
> 
> 1 part nonsudsing household ammonia (clear, no perfumes)
> 4 parts 50% Isopropyl Alcohol (aka Isopropanol) (clear, no perfumes)
> 5 parts filtered or distilled water (-not- purified)
> 
> for a cleaning solution.
> How many % is this ammonia?

Yikes! I'll have to go look. Nope, nothing on the bottle about
percentages. Just non-detergent household cleaning ammonia.

> Is ethanol also suitable or only IPA?

No, ethanol melts some plastic and is not the same (as you know) and
not necessarily as good a solvent for ink.

> Is this solution suitable as a repacement for windex (can't find), i
mean  
> for cleaning the parking pad and stuff?

Better, in my experience.

The reason for the mix is my experience that isopropyl will only
dissolve about 90% of the dried ink. Ammonia gets 99.9% of it.

BTW, mixing it with more ammonia does not improve it's cleaning
ability, it just makes it harder on your lungs and skin.

> Also, i will have to find those lint-free window wipes. That will be
quite  
> hard.

Good luck! I got lucky, the local Dollar Store (their actual name)
carries Coralite brand and they are perfect.

Steve Greenfield