What type of coating is used on self-cleaning glass?

Self-cleaning glass is designed with a specialized invisible coating that utilizes properties such as hydrophilicity and photocatalytic activity. This coating works by breaking down organic dirt and grime when exposed to sunlight, allowing water to spread evenly across the surface instead of forming droplets. As a result, when it rains or when the glass is sprayed with water, the water effectively washes away the dirt, keeping the surface clean without the need for washing or scrubbing.

The choice of using an invisible coating is crucial because it maintains the glass's transparency and does not alter its appearance, which is important for windows and facades where clarity is essential. This coating technology enhances the practicality and functionality of glass in various applications, making it suitable for both residential and commercial settings.