This very much depend upon the surface finish of the PCB's in question.
I've managed to solder Hot Air Solder Levelled PCBs which are twelve
month old and have not been in any vacuum packing. Some Organic Solder
Preservatives only have a shelf life of six months. Can you provide any
more information?

Steve Brown.
Xyratex Ltd.

Cathy Killen wrote:

>Hi all,
>How long can you keep bare PCBs after they have been removed from their
>original vacuum sealed packaging?
>
>Thanks in advance.
>
>Cathy Killen
>Training Instructor
>Smtek Europe Ltd.
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