yep a two part epoxy like Bondo or PC-7 or PC-11 may work. you canget those at any hardware store
If it needs to be a fine even layer of adhesive you can use a cheap 2 part automotive paint and spray it on with an HVLP gun between your layers
ever hear of A UV-catalyzed polymer resin? if...
Thats really extreme conditions. you are probably approaching if not at supercritical conditions for Water and Other gases that may exist in your pipeline. You should probably review literature pertaining to the corrosive properties of supercritical water.
Um, i could be wrong but i bet its just called plasma. From what I under stand Plasma is plasma its not liquid its not gas. The only way i know how to make plasma with a low energy signal source is under vacuum backfilling with your gas of choice and use an RF signal generator like a microwave...
I also work in a thin films lab. We have several procedures that involve Cyrogenic sample handling For TOF-SIMS and XPS analysis.
first, Everything we use is under a vacuum with a backfill supply of Dry N2 gas to avoid condensation build up. you can cause a lot of damage in a lab if you...
I don't know if anyone said this already , but You need a load lock of some kind that you can vent to isolate your vacuum " Chamber" or else you could never get the thing open.