Practically infinite shelf life. The rosin is sealed hermetically into
the solder and therefore cannot oxidise or hydrolyse. If you have a cut
end, as opposed to a fused end, where the flux is exposed to the air, it
may be wise, for extra security, to discard a couple of centimetres.

Brian

Gregg A. Owens wrote:
> TechNetters:
>
> A student of mine has asked, what is the shelf life of flux cored
> solder?
>
> In reviewing J-STD-001 and J-STD-004 I can't find any specific guidance
> or requirements from the Standards. I know newer rolls of solder
> (depending upon the manufacturer) have date codes and expiration dates.
>
> However, they have a wire solder spool still being used today that was
> entered into their HazMat system in 1998 (no actual record of the
> precise date of manufacture). The wire spool is removed from their
> HazMat system when needed to uncontrolled/undocumented working
> environments within their facility. Since the standards don't specify a
> shelf life, what is considered best industry practices or is there a
> Standard dealing with this issue?
>
> Thanks for your responses.
>
> Gregg A. Owens
> Master IPC Trainer
> Executive Director
> Manufacturing Technology Training Center, Inc.
> Mira Loma, CA 91752 USA
> www.mttc-inc.com
>
>
> ---------------------------------------------------
> 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
> -----------------------------------------------------
>

--
______________________________________________
Please note new e-mail address [log in to unmask]

---------------------------------------------------
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
-----------------------------------------------------