There are choices for adhesives that will support the outgassing
requirements.  Merco in NJ does a nice job.  Personally I found the Uralane
to be the best fit for my application.  The "pink" 7762 has ceramic spheres
of .004 to ensure passives are not flat on land.  The "beige" 7760 is for
leaded and mechanical parts (no particles).  They are both one part frozen
and very safe to use.  Most importantly is they have heritage in Space
applications.

Coretec Brad
781 858 0783