[PSUBS-MAILIST] question

[Rick Patton via Personal_Submersibles]

As mentioned before, I had to have my large viewport turned down on a lathe
and I have contacted a couple of places that anneal acrylic and they said
that they needed a specific procedure for my particular application.
I had Greg Cottrell do it last time but was looking for someone say on the
West coast if possible. I don't want to tell the companies I contacted how
they will be used as that has been problematic in the past. Can anyone help
me with this?
I also forgot what type of rubber O ring material I should use. Was it
Nitrile or Buma?
All that's left now is to install the viewports and she's ready to get wet!

Thanks

Rick
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