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

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