Elaine, would do nothing before I knew what's under the surface. ENIG boards vary by quality. you need touch up, which tells me there is a problem with the finish. If you speak about very extensive batches, I would start with a analysis of the kind that gives a view of the in-depth status, e.g. the P %age, finish thickness,, contaminations, micro hardness etc. From that, you can work safer. If it's only about a single or few boards, you may just go on with stronger flux, increased dwell time and a nmber of other well known actions. you wsill get lots of proposals. Inge ----- Original Message ----- From: "Brown, Elaine" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, February 24, 2010 1:19 PM Subject: [TN] Touch up on ENIG > What do folks do to rework exposed nickel on ENIG unpopulated boards? > > I find brush plating for tab plating but nothing for ENIG. > > Thanks in advance > > Elaine > > > Elaine Brown > PWB Quality Engineering > Lockheed Martin Systems Integration - Owego > 1801 State Route 17C MD0409 > Owego, NY 13827 > Phone: 607-751-2015 FAX: 607-751-7796 > e-mail: [log in to unmask] > > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 15.0 > 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/contentpage.asp?Pageid=4.3.16 > for additional information, or contact Keach Sasamori at [log in to unmask] or > 847-615-7100 ext.2815 > ----------------------------------------------------- > ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------