Hello all,
I do a lot of component and material sourcing, crossing, and spec'ing.
Probably the area I struggle with the most is the materials, like
epoxies for board repairs, or adhesives, or sealants, cleaners, etc
etc,...I did electrical engineering, not chemical.
Is there any good resource place to get a handle on when you want an
acrylic versus an epoxy, or silicone, or ... basic properties, what
environment they are needed for, etc.
A specific sourcing question I have right now - for challenging board
repairs we use specially trained operators in a rework cell that use a
2-part epoxy to repair FR4.  One product has a track cut, that usually
causes weave exposure, that happens on every board on the line to allow
for different configurations, and they want a way to protect it
adequately with a 1-part quick curing material without sending it to the
rework cell.  We've tried those conformal coat pens, and they can be
washed right off the board.  Any suggestions?

Genny 

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