My seniors are suggesting that conductive grease will help lower the high resistance that is a result of the tarnish and will make good the connector over a long period of time. I tend to agree in the short period but have advised against this as I am concerned it will makes its way into the dielectric and will act as a short circuit. I want to avoid any grease of any sort because i believe over time it will contaminate the dielectric which looks porous and once it is contaminated it will be very difficult to clean. This is a harsh environment, hot, cold, wet, dry and dusty. We have a lot of these connectors in use 1000's and am concerned that a lot of damage can be done in a short time if we are careless. It seems that no one has used conductive grease this way and this goes someway to supporting my argument. We have optic fibers that ooze a yucky thick goo over a long period of time exposed to these conditions. So it seems clear that grease type products given time and unfavorable conditions will weep and flow. My approach is to keep them dry, cleaned and sealed as best we can without the use of gels, greases etc. . Cheers Justin On 21 February 2010 22:33, Robert A LaBudde wrote: > The grease used to waterproof connections or prevent corrosion > doesn't have to be conductive. Use petroleum jelly, or, if you have > rubber components, use silicone grease. > > If you want copperized conductive grease, cylinder head bolt grease works fine. > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist