Major breakthrough in extremely water-repellent materials makes them durable enough for the real world

A new armour-plated superhydrophobic material has been developed for a wide range of potential uses, including solar panels. The superhydrophobic properties of the surface come from nano-sized structures spread all over it. 

Resource:

https://www.aalto.fi/en/news/major-breakthrough-in-extremely-water-repellent-materials-makes-them-durable-enough-for-the