Here, the XYL uses cheap 80 proof Vodka to 'awake' vanilla bean seeds.
She has a bunch of vanilla beans and when soaked in alcohol for about 2
months (shaken every day), it makes vanilla extract.
She was doing commercial baking when she acquired the vanilla beans
because it was MUCH less expensive than purchasing vanilla extract from
the store.
When she quit baking, she had left over beans, so we have lots of
vanilla extract on hand.
OK, back to the subject at hand, I used to use 190 proof Everclear for
cleaning boards - still applied only as necessary and with a q-tip in
the area to be cleaned, blot with a paper towel. But I can no longer
get that strength in the local liquor store, they only sell 180 proof
(don't want to travel to South Caroline just to get some). So I use
other sources of alcohol. Whatever dissolves the flux buildup does the
job. If you are very careful, you can use acetone, but it will melt
silkscreening and get under components if it gets to the top of the
board - apply only with a q-tip in the area of concern on the bottom of
the board.
I had one repair here where the customer used something for flux
removal. It got under ICs and relays and caused multiple leakage
paths. I was about to declare it non-repairable, but he was willing to
pay the cost of lifting components and cleaning.
Remember that rosin flux is non-conductive until it is mixed with a
"flux cleaner" - use only in a specific area (do not flood the board),
and dry the area after application. Make certain ALL the flux was
removed from the area - if there is any residue, it can be conductive,
leading to leakage paths. Let it dry and look for 'whitish' stuff. If
there is any, you have not done a complete job.
73,
Don W3FPR
On 7/17/2021 6:15 PM, Paul Van Dyke wrote:
Correct ... and the one your ladies know SD-40 alcohol used in my field
= Perfume
And a world favorite - Vodka, that was used to make perfume and clean
parts, Hic..and other things
73 ..needin a chair
Paul KB9AVO
On Sat, Jul 17, 2021 at 3:49 PM David Christ <radio...@mchsi.com> wrote:
I’ll try to introduce some accuracy here. There are three common kinds of
alcohol
Methanol CH3OH also known as wood alcohol. Poisonous by its very nature
so needs no additives to make it undrinkable, Mainly used as a feedstock
for making other chemicals.
Ethanol CH3CH2OH This is the stuff in alcoholic beverages. Everclear is
available as 95% ethanol. Because it is drinkable additives are used
“denature” to make it undrinkable. This is the alcohol commonly added to
gasoline.
Isopropanol CH3CHOHCH3 This is the alcohol normally found in rubbing
alcohol. It is also used in hand sanitizer. It is toxic and can be
absorbed through the skin so caution is advised when applying isopropanol
solutions to the skin.
Alcohol absorbs water so is used in “gasoline dryer” products. Yellow
Heet contains methanol. Red Heet contains isopropanol.
This information courtesy of Wikipedia which contains much more
David K0LUM
On Jul 17, 2021, at 1:40 PM, Steve Hall <99sun...@gmail.com> wrote:
John NI0K,
Keep in mind that denatured alcohol and Everclear are absolutely two
different products.
Denatured or wood alcohol is most poisonous. Whereas Everclear is grain
alcohol and can be consumed, (in moderation.)
Steve
WM6P
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