On Wed, 20 Jul 2011 10:11:59 -0600, "WW"
wrote:


"Leon" lcb11211@swbelldotnet wrote in message
m...
On 7/20/2011 8:35 AM, Pete S wrote:
I would be concerned that the chemicals so deposited could CREATE
problems with electrical circuitry, especially when there is any contact
arcing. Is the resistance of the dry material infinite? What might the
voltage limits be?
Maybe okay for 12 volts automotive systems, but not for 480 volt power
distribution?

Actually WD-40 worked great in old automotive distributor caps to displace
condensation, 20,000-40,000 volts and plenty of arcing.





Been there, done that. Thats the only good use I have found for WD 40. ww


It does not stay on the contacts very long - and even there it CAN
cause carbon build-up on the electrodes - which is blasted off by the
next couple of "lightning strikes" - and is not a problem since the
"electrodes" are not "contacts" - i.e. - they NEVER touch.