Winston wrote:
Lloyd E. Sponenburgh wrote:
fired this volley in

(Cut 50/50 with alcohol it is a great
flux cleaner as well.)

Winston, naptha (VM&P, low vapor-pressure cut) is not miscible with
alcohol
-- I don't know who told you that, but it will not mix. 'Bout like oil
and water.

I readily admit that you could put my entire knowledge of
physics and chemistry in a thimble and still have room for
a medium size battleship. (Pardon the re-entrant definition).

However, when I use straight alcohol to clean flux off of
PCBs, I am left with a sticky coating that can result in
intermittents if allowed into a connector. When I add
naphtha to alcohol, I don't get the sticky intermittents.

Now I am willing to believe that I'm actually cleaning with
almost straight naphtha under those circs and that the
alcohol plays a minimal or non-existent role.

I see several citations on the net for mixtures of
alcohol and naphtha for various purposes by people who
know much more than I do, so I figure it's an honest
mistake.

http://books.google.com/books?id=5Sk...page&q&f=false

Para 2.7.2.2 "in blends of a VM&P naphtha with isobutyl alcohol..."

I'm always happy to learn something new, so I thank you
for the info, as always.

Have you tried MEK? (Methyl-ethyl ketone) It's a pretty aggressive
solvent, but not as volatile as acetone (dimethyl ketone).

Good Luck!
Rich