At 03:38 PM 4/17/2008, neil N wrote...
>Anyone know of a spray or paste that would help clean, and keep clean,
>pins and sockets on electrical connectors?

Absolute best stuff is Caig Deoxit. It comes in a bunch of different
forms, choose your weapon:
http://www.partsexpress.com/webpage.cfm?webpage_id=3&SO=2&CATID=38&ObjectGroup_ID=177

>Maybe a spray is best as leaving a "paste" of some kind might smoosh
>around and make contact where it shouldn't.......

After getting the contacts clean and protected, get some 3M Scotch 2155
rubber splicing tape. I think most of the big box hardware stores
(Lowe's, Home Depot) carry it. It bonds to itself (make sure you remove
the thin liner as you apply it). Start well back on the cable away from
the connector, and wrap overlapping by 1/2 (stretch it well), until
well past the connector. Then use 3M Super 33 electrical tape over the
whole thing. If you really want to do it right, then put 3M Scotchkote
over the whole thing. Now you're ready to leave it in a bucket of water
without worry. If you ever need to remove it, just slice it straight
with a razor knife.