Hi Werner! We have tried to use our ROSA system to electrochemically reduce the degraded nickel surfaces with no success (nickel oxide/corroded nickel is tough stuff!). I have not heard of anyone being able to restore a "black pad" surface successfully without having collateral damage to adjacent regions of the printed wiring assembly. Hey Rudy S. - is there a chemical treatment potential/possibility? Dave Hillman Rockwell Collins [log in to unmask] Werner Engelmaier <[log in to unmask] To: [log in to unmask] OM> cc: Sent by: TechNet Subject: [TN] Black pad <TechNet@listserv .ipc.org> 08/11/2003 02:09 PM Please respond to "TechNet E-Mail Forum."; Please respond to Engelmaier Hi All, Are there any successful rework procedures for 'black pad'? Werner Engelmaier --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------