Definition

A surface is called superhydrophobic when water droplets cannot wet it; this means that the droplet, upon coming in contact with the surface, remains spherical (it does not spread) and simply rolls off, carrying along the dust, dirt or debris it that finds in its way, leaving the surface clean.

More about the materials

Superhydrophobe Oberflächen bestehen aus hydrophoben Materialien (wie Wachs, Öl oder Fluor, das Polymere wie Teflon enthält) mit “rauen” Oberflächen, die aus Unebenheiten von einer Höhe von ungefähr 100 nm gebildet sind.