The 2021 world’s whitest paint, for which Ruan was entered into the Guinness World Records, had to be applied at a layer of 400 microns thick, which is only possible for robust and stationary objects like buildings.

For things like airplanes, cars, or anything that comes with weight restrictions, 400 microns is too dense a coating to be useable.

Anyone able to put into perspective how 400 microns vs 150 microns matters that much? I understand that extra weight when sending things to space is expensive but how does it compare to say smuggling a gorilla costume aboard the ISS, flame decals or other stuff people put on their cars, or whatever other examples (preferably better than my examples at least) that makes 400 microns too dense?

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In Germany the coolest boomers now get the pitch black roof tiles… They don’t even look good.