[Elecraft] Cleaning capacitor goop from PC board

[Gary K9GS]

There ya go Jack.  I wasn't aware that Walmart sold 90% Isopropyl.  I 
don't buy it that often.

That should work great!

On 12/26/2010 10:49 AM, Jack Smith wrote:
> 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%.
>>
>

-- 


73,

Gary K9GS

Check out K9NS on the web:  http://www.k9ns.com
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