I'd hate to deprive Jim of business, Chris , but your local jeweler/supply does sell silver and gold cleaning compounds and aids . The cloth type is sufficient ; just wipe it clean with alcohol afterwards . You're right, gentle clean helps to get the accumulations off paul -----Original Message----- From: Christophe CROCOMBETTE [mailto:[log in to unmask]] Sent: Thursday, 24 February 2000 4:06 To: [log in to unmask] Subject: [TN] Cleaning of edge board connectors Hi technetters, does anybody have a procedure to clean edge board connectors without damaging their Ni/Au coating ? we have old boards which may require some cleaning, but we don't know whether it is better to let them like they are or to clean them (but with which product ?) regarding their reliability. Thanks Christophe Crocombette Research Engineer Electricite de france ############################################################## 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 ############################################################## ############################################################## 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 ##############################################################