[Elecraft] Solvent

[Jack Smith]

Bill:

I use denatured alcohol and a commercial spray-on flux remover. Both
seem to work about equally well for me. Denatured alcohol can be found
at any hardware store, of course, and is cheaper than the flux remover.

I apply alcohol with a small brush. In some cases, a cotton swab is
useful, but you tend to get cotton fibers snagged on component leads, so
if you can find them foam swabs are better.

The problem with isopropyl alcohol that you purchase at the drug store
is that some contain extra ingredients that can leave a residue on your
PCB. The electronics supply house I frequent sells "electronic grade"
isopropyl for board cleaning.

I have not found any problems with damage to plastic components, but
obviously a test should be made if you have any doubt. And, of course,
keep it away from the LCD and diffuser. (don't ask me how I know about
that.)


Jack K8ZOA
www.cliftonlaboratories.com  home of the Z90 digital panadapter



William M. Spaulding, SR wrote:
> Hi Folks,
>
> I'd like to know from the collective wisdom what solvent may be used on Elecraft PC assemblies to remove some residual flux and flux smears.
>
> It seems to me that a solvent that wouldn't harm boards and components was isopropyl alcohol (rubbing alcohol) in the old days.
>
> What do you Elecraft Builders use!
>
> Thanks,
>
> Bill
> NA7Y
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