Super hydrophobic coatings
So I just got back from this medical device expo in Anaheim and I ran into this amazing super hydrophobic material that was really impressive. I've messed around with stuff like neverwet and was very disappointed because it doesn't last long. This other stuff being demoed at the show was much cooler. It can be applied directly to circuits and electronic components, thereby waterproofing them. They had an arduino submerged in an aquarium filled with Rockstar energy drink and it was running great. They also had phones and were encouraging people to handle them, demonstrating the coating didn't rub off. They claim it will outlast the life of the electronics they are coated to. It is bio-safe and awaiting fda approval. I'll post links when I find them in this mess of trade show swag I have.