Joe,

The use of "No-Clean" for rework is problematic. Unvulcanized flux will go
places where it can not be removed. The best method to deal with this is to
run the boards back through an oven and make sure the entire board reaches
a high enough temperature to vulcanize the remaining flux.

If there is a combination of fluxes on the board you are in serious trouble.
Do all the RMA rework and clean-up prior to "No-Clean" rework.

Hope this helps.

David A. Douthit
Manager
LoCan LLC

Macko, Joe @ IEC wrote:

>Fellow Technets,
>
>We are looking at switching to a "batch" type cleaner from our WESTEK
>in-line cleaner for circuit boards.  We outsource all of our board assembly
>so we do not have to worry about cleaning screens, etc..  Our boards are
>densely populated, double sided with multiple BGAs on both sides. We use
>wire form, RMA cored solder for in-house rework and touch up.  Use NC for
>BGA rework.
>
>Looking for some recommendation / comments on what fellow techs are using to
>successfully clean their boards - make, model, etc....  Their seem to be a
>lot of units out there.  Thanks
>
>joe
>
>---------------------------------------------------
>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 847-509-9700 ext.5315
>-----------------------------------------------------
>
>
>
>

---------------------------------------------------
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 847-509-9700 ext.5315
-----------------------------------------------------