Cheryl Johnson's question is right on the money..

But, FYI, Electroless Nickel is quite easily strippable, IF.... the soldermask is US made and applied.. A number of us suppliers sell the chemistry to do that...

But, we sell a product used to clean up boards (clean, not strip) which gives no problems on US made boards, but rips the mask off of many/most boards made to the left of the Hawaiian Islands.  Based on this data, I would be weary of trying to strip Nickel from these same boards.

Rudy Sedlak.
RD Chemical Company

Tom Moore <[log in to unmask]> wrote:
Our PC board supplier inadvertently supplied us with boards composed of
gold over nickel rather than the specified HASL finish. While we kept some
of the boards to keep our production line running, we sent the rest back to
have the gold stripped off and run through the HASl process. Now our
supplier is telling us that they will not be able to remove the nickel that
has bonded to the copper pads. I'm going to have the supplier guarantee the
board life in blood, but I would feel more confident in having confirmation
by this group's expertise. Thanks for your help.

---------------------------------------------------
Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around

---------------------------------------------------
Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
http://mail.yahoo.com