- Does alumide degrade? I don't think so, Possibly someone has tried and can comment.
- How long does it take to empty box? Seconds? Minutes? Hours? Depends on the wall thickness, surface area, temperature, atmospheric pressure, ect. but no give an answer, very slowly.
- If I build something like a water mill does it work? (who cares if it's a bit porous?) With the right tolerances it will work to start. But, it will probably not work as intended as it becomes saturated with water
What about white strong and flexible? All WSF based materials are not water tight. Not sure if the Glossy was, or if there are any plans on bringing it back. If you weren't here for that, Glossy was WSF that was post processed to have a smooth glossy finish.