[PSUBS-MAILIST] bubbles on dome

[Alan Winick <subguy33@yahoo.com>]

OK guys, here's another one to chew on.

I use double bow domes on Explorer. The inner dome is
flanged to the pressure hull. Covering it is a 3/8"
free-flooding dome. It's good for impact/scratch
protection and also protects the inner dome from
fingerprints and oils from the public when the sub is
on exhibit.

Anyway, I use Novus plexiglas cleaner/polish to
maintain both domes. When I submerge, though, a
stubborn layer of air bubbles adheres to the inner
dome. Can't reach them to wipe off! Any ideas on how
to prevent this? I thought of using some sort of
surfactant, but don't want to damage the acrylic.

Alan

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