On Sun, 11 Sep 2011 10:57:31 -0700, (Dave Platt)
wrote:

See http://www.isoconnector.com/cableassemblies.html - "semi-rigid"
and "semi-flex" are different constructions.

Thanks. I've been calling both types semi-rigid, which is wrong.

They made another "blue" product which was intended to provide some
residual anti-re-tarnishing protection... I think it was based on palm
oil.

No clue on the oil, but my guess would be cheaper mineral oil and some
solvent to wash off any residue from Cramolin red. I've never used
(or seen) Cramolin Blue.

When I use Cramolin (I still have a bit of the concentrate) or DeOxIt
on contacts, I follow it with a final cleaning using isopropyl or
denatured alcohol (or acetone if I'm feeling really thorough), to
remove the remains of the anti-oxidant.

I use 409 cleaner, which has a pH of about 11, or ammonia window
cleaner, both of which should neutralize the acid. Acetone will make
a mess of anything plastic and really is overkill. For open frame
relays, I sometime use electroless silver to replate the contacts. I
also have a diy silver brush plating kit, which I use large contacts.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558