Geodesic dome construction for lunar habitat

--- In spacesettlers, "Victor Smith" wrote:

> I would think that a lava tube, once the ends are sealed,
> could be air tightened by pressurizing the space, then
> releasing some kind of semi-liquid leak-seeking sealer
> into the atmosphere to migrate to wherever the atmosphere
> was escaping.

Fill with a "plastic mist" that will naturally be blown into any cracks or holes. I like that. Might also work with aluminum, silicon, or basalt mists.

> Once sealed, you'd want to make double sure by coating
> all interior surfaces with some kind of rubberized or
> plasticized sealing coating. Then you can fill with air
> and carry on...

And of course you wouldn't have to do an entire lava tube at one time. At first you might have a Lunar variation of a Bigalow inflatable (perhaps even made by Bigalow) which you would put inside the lava tube for radiation shielding. Later you might seal up a 100 metre section, and later expand it to 500 or whatever.

The geodesic dome could cover the skylight, which is where you'd probably start, and so it might be there from the beginning.