[Elecraft] Cleaning capacitor goop from PC board
Jack Smith
jack.smith at cliftonlaboratories.com
Sun Dec 26 11:49:22 EST 2010
I buy 90% isopropyl alcohol at Wal*Mart and use it for PCB cleaning. I
think it's a couple dollars for a quart bottle, available in the drug
section. I've also found 90% at most drug stores or supermarkets if you
look carefully.
It's a lot cheaper than Everclear, but you can't consume the excess!
Jack K8ZOA
On 12/26/2010 11:06 AM, Gary K9GS wrote:
[edited to remove non-pertinent parts]
>
> 2) Once you have most of the goop cleaned off, I recommend using
> alcohol to remove any remaining residue. You can use store bought
> Isopropyl alcohol but the problem is that the stuff you buy in a store
> is only 70%...with the remaining 30% being water. A much better thing
> to use is to buy some Ethyl alcohol. Go to your local liquor store and
> buy a pint of grain alcohol. Brand name around here is "Everclear".
> This is 95% Ethyl alcohol...about as high as you can get outside of a
> chemistry lab. Alcohol is naturally hygroscopic (absorbs water) so
> you'll never get 100%.
>
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