[R-390] DeOxit question

[Barry Hauser]

The D-100 is for treating contacts that are already clean -- it has no
cleaning properties -- just protection from oxidation and some degree of
lubrication.

D-5 has only 5% of the "protectant" component but has "20% cleaning" power".
Caig explains this somewhere on their web site but you have to dig a bit for
it.

Under most circumstances, what you want is the D-5 -- because most of the
time, we're trying to clean and remove oxides from switch contacts, tube
pins, etc.  It leaves enough of the 5% behind after the cleaning solvent
evaporates to do the trick.

Of course, if you really want to do it up, you can apply a miniscule amount
of D-100 after cleaning the contacts with D-5, but it's probably overkill.
You might use D-100 prior to fitting critical connectors together which are
either already clean or new.  However, in that situation, you might want to
go with their Pro-Gold.

Another of their products is very good -- CaiKleen RBR.  It's excellent for
restoring old grommets, rubber feet, seals (like the one on the URM-25's),
and resurrecting grungy old power cords and interconnection cables.  The
best value is the 354 ml. screw-top can.  Seems a bit pricey at just under
$17, however, I use it often and I still have half a can after 3 or 4 years.
The stuff is highly aromatic intense citrus smell and can be a bit
overwhelming.  Works best on a rag or paper towel -- I don't think I'd want
to spray the stuff.  Makes you loose interest in orange juice for a while.
I found a similar product by MG Chemicals in a little clear/brown plastic
bottle -- "Rubber Renu" -- 100 ml.  I think I paid about $3 for it.  I don't
know if it's quite as potent as Caig's.

At first, on some rubber items, it can look like you've ruined the thing.
The rubber may pucker and look like it's come down with a case of the pox.
But after a short while it reforms -- clean and more pliable.  Excellent for
restoring rubber test leads, which tend to pick up grime to the point where
it's hard to tell the red from the black.  Just use a small amount on a rag
and draw the wire through with some pressure.  Do that repeatedly, turning
the rag until the lead is clean.  Be sure to allow plenty of time for air
drying.  Afterwards, the test leads will be like new -- pliable -- which is
why the good ones are rubber-covered in the first place.

Barry






----- Original Message -----
From: "Scott, Barry (Clyde B)" <cbscott@ingr.com>
To: "R390 (E-mail)" <R-390@mailman.qth.net>
Sent: Monday, April 26, 2004 12:35 PM
Subject: [R-390] DeOxit question


> I notice there are two DeOxit products from Caig: 5% and 100% solutions.
I
> don't see any explanation as to which one is best.
>
> I assume the 5% solution is diluted with other chemicals and is "weaker"
> than the 100% solution, but I don't know if the 100% solution might be too
> harsh for some applications.  I have the D5, but was wondering if the D100
> would be better.
>
> I need to get some CaiLube and was thinking about getting some D100 but
> didn't know if it would be any better for general cleaning than the D5.
Any
> comments?
>
> Thanks,
>
> Barry(III) - N4BUQ
>
> _______________________________________________
> R-390 mailing list
> R-390@mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390
>


_______________________________________________
R-390 mailing list
R-390@mailman.qth.net
http://mailman.qth.net/mailman/listinfo/r-390