How exactly does the “self-cleaning” function work? How long does the effect last?

A: The self-cleaning function primarily relies on the “lotus effect.” The nanostructure significantly reduces surface energy, causing water to bead up and roll off quickly, carrying away dust and contaminants. Its durability is directly tied to coating quality. Our inorganic nano-ceramic coating bonds firmly with the substrate, and its effectiveness lasts as long as the coating itself (typically 15-25 years), far surpassing temporary sprayed-on water repellents.