Props How to finish interior of 3D Printed helmet?

[ArcaneGhoul]

I’m working on my MkVII helmet and I’m realizing that the interior has gotten pretty dirty while I’ve been working. It’s got some dust, residual overspray from painting, cobwebs (thank you overabundance of spiders this year, I swear there are probably 100 in my garage), etc, in there and I don’t really want to be breathing all that in every time I wear the helmet, and a damp cloth only does so much when I’ve got exposed layer lines that like to catch fabric.

So for anyone else with a 3D Printed Helmet, how’d you finish the interior? I’m debating doing a clear coat just to seal everything, but I’d love to hear some other solutions that may work better. Thanks all!

Arcane signing off.