Thanks for all the inputs. This is a picture of a purchased item containing multiple wires that are formed into a fusion lug at one end. The other ends we strip and some wires are soldered into a connector and others are crimped to pins. The wire when looking very dark (almost black) will not take solder and we use a solder pot. We have cut back up to 12" and still found unsolderable wire. We now have come across wire on spools in house that is very dark in color that was manufactured in 05 and 06 and stored in a controlled environment for temperature and humidity here. Main question I have is can you use wire that does not take solder for crimping operations? Again thanks for all the responses and will keep watching for anymore you folks may have. Jon -----Original Message----- From: Dehoyos, Ramon [mailto:[log in to unmask]] Sent: Thursday, January 18, 2007 11:42 AM To: [log in to unmask] Subject: Re: [TN] SHELF LIFE OF STRANDED WIRE Older than 2 year spool of wire should still wet with no problem. There has to be an issue, not enough heat is being used to solder the wire, or no flux to remove the top oxide layer, real cheap wire,... Of course the expose ends, specially if in a very humid or corrosive environment would have to be cut off. A freshly strip wire should have a shelf life of many years. Regards, Ramon -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Frederick Miller Sent: Thursday, January 18, 2007 12:27 PM To: [log in to unmask] Subject: Re: [TN] SELF LIFE OF STRANDED WIRE I would do a "dip and look" test to verify that the wire is wetting. -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Jon Roberts Sent: Thursday, January 18, 2007 11:51 AM To: [log in to unmask] Subject: [TN] SELF LIFE OF STRANDED WIRE Searching for data or information regarding process control to self life of stranded wire (M22759/32). Wire is used for both soldering and crimping. We are considering two years from Date of manufacturing (DOM) from vendor. Problem being experience is discoloration (oxidation) of wire surface. Considering also using solderablitity criteria to determine if wire is suitable for crimping. Any help or information is extremely welcomed. Jon --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------