Graham,
Thanks for the insights on the "blush" phenomena.  How interesting that it
comes up in the same discussion as your "work naked bonus".

Is there any link between the type of solvent in the coating and blush, or
is it exclusively humidity related?  One project that has been suggested
for me is to replace the toluene and xylene we use as acrylic thinners with
methyl propyl ketone.  If such a switch were made, would you expect a
greater or lesser susceptibility to blush, or is it immaterial (no pun
intended).

Doug Pauls
Rockwell Collins

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