Wouter van Ooijen wrote:
> (I guess this falls under everything engineering...)
> 
> I use superglue to glue some metal parts in a box I make. Recently my
> customer complained about some white grease-like goo on the PCB. This
> goo appears mostly near the places where I used the glue. Has anyone
> seen this? Is it known to be harmfull to electronics? How to prevent
> this - up to now I waited 12 hours (for the glue to harden - seemed more
> than enough for one-second-glue) before closing the boxes, maybe I must
> wait longer?

I saw this myself a while ago, and my wife (who reads murder mysteries) 
says cyanoacrylate glue makes that white powdery stuff where your finger 
oils are left.  Apparently that feature is used in forensics.

Don't know whether it's bad, though.
-- 
Timothy J. Weber
http://timothyweber.org
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