Castle ESC's: Water resistant and/or water proof?

[simplechamp]

I heard about this Golden Shellback stuff awhile ago. Not sure where they are with it now, haven't heard anything about it since originally seeing the video. Would be awesome for RC electronics, especially ESC's as long as it could stand up to the heat. Sounds very pricey though due to the application procedure. Not likely to see it in RC any time soon, but nonetheless it's pretty neat stuff.

http://vimeo.com/1381538

P.S. The video is slow to start, skip ahead to 30-40 seconds in if you want to get right to the info.