Side mirrors and rear windows in cars often experience fogging. During the rainy season and humid weather, large amounts of rain can make a clear view difficult to maintain even with active heating wires. Inexperienced drivers will feel anxious under such conditions, and impeded vision may result in dangerous accidents.
Applying the Ray Materials anti-fog coating creates a water layer with a super-hydrophilic coating that makes the water spread out, in contrast to water-repellent coating. This allows for unimpeded vision even during heavy rain. Fogging due to temperature differences can be prevented, allowing for clear vision even without heating wires.