[sdiy] mixing solder types

[Graham Atkins]

I use a cotton bud (Q-Tip) soaked in IPA. Never had any problems and  
it cleans
all of the flux residue easily. I would not advise cleaning pots,  
trimmers etc by
immersing in water. Having said that, if you spill anything like coke  
or coffee
into equipment you really need to wash it as it will cause all sorts  
of problems.
If you do get water into anything, use a hairdryer or similar to help  
dry it out
quickly.

Graham

On 21 Feb 2009, at 12:36, Mike wrote:

> Following advice from some a company that makes and repairs parts  
> for very
> serious military and aerospace applications, I wash the boards off  
> with
> isopropyl alcohol, (Isopropanol,'IPA')which removes flux residue but  
> does
> not remove anything else. I do a manual brushing technique with neat  
> IPA,
> then a mixture of IPA and water with a tiny amount of detergent,  
> then plain
> deionised water. With modern sealed trimmers, there are few  
> problems, though
> pots do pose a problem I know.
>
> As an aside, have any of you seen the cheap imported ultrasonic  
> cleaners
> many stores are selling? they are good for cleaning off small SMT  
> boards,
> and can be had in the UK for arounf £20.
>
> ||\/||ike
>
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