I have written about that idea in another thread and i think it should be possible i also think that is basically the same method Pimax is using. Looking at this video Die Pimax RE Edition - Ein detaillierter Einblick - Wie gut ist die Qualität? - YouTube
it looks like it is just a PlastiDip coat on the new Units.
The only problem is see could be the IR sensors so it could cause a problem if the coating becomes to thick on the sensors.
One way to avoid problems would simply be to mask the sensors off.