This waterproof functional coating can make the surface layer of electronic products such as mobile phones have extremely strong hydrophobic, water-repellent and waterproof effects. Water droplets on the surface of objects roll down like lotus leaves, similar to the lotus leaf effect, causing dirt and dust attached to the surface of objects to slide quickly with the gravity of water droplets, taking away the dust and most of the dirt on the glass surface without leaving any water traces, achieving a double self-cleaning effect.