http://montana-riverboats.com/pages/...uper_Glue.html

.....used to sell super glue to fly fishing stores, as Sandy's Superfly.
I've seen it get hard in the bottle, but never evaporate.
Keeping it cold does extend the shelf life. The most important thing
is to use Teflon tubing as a super accurate, pin-point dispensing tool.

I use thin CA glue (ZapCA, for instance) for thread wraps, and medium
viscosity glue (ZapAGap, for instance) for most everything else.
The ability to place pin-point drops at just the right spot makes all
the difference.