http://www.neverwet.com/anti-wetting.php
and I quote:
I could use that on my bicycle..Ross Nanotechnology, LLC provides a solution to these problems with NeverWet™ superhydrophobic coatings. NeverWet™ coatings have remained under seawater for over a year and reemerged completely dry. When dirt and dust sit on one of our treated surfaces, water quickly flushes it away. The water is repelled by our coating, and the dirt is attracted to the water. Even under extreme conditions like high pressure spray, they maintain their superhydrophobic characteristics.
Bookmarks