Neil, The capacitor may well be a film of metal oxide.... Have you considered using a brass nut. Of course you should also consider what the nut connects to. > Thanks, Eric I didn't give much info because it's a difficult one to > explain. The sensor is actually a painted metal plate being used to detect > capacitance (the plate is acting as one half of the capacitor). It is in > permanent contact and I believe we may be starting to get a small capacitor > at the contact point???? > > Neil Atkinson > Quality Manager > Stadium Electronic Controls > Tel: 01429 266544 > > > > Neil, > > > > You haven't given much information on how the parts are > > contacted, frequency, > > force, environment .... > > > > However, if the two parts are in continuous contact then > > stainless will be less > > likely to cause galvanic corrosion than zinc when in contact > > with bronze. If > > the parts are in contact but not soldered a small amount of > > corrosion will > > disrupt electrical continuity. > > > > Hope this helps, > > > > > > > > Eric Christison > > Eric Christison ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################