Why Do Car Headlights Turn Yellow?

[VonDerek]

Car headlights are made of polycarbonate plastic, which is prone to oxidation buildup. When sunlight shines on the headlights, it causes the pores in the polycarbonate plastic on the surface to expand, accelerating oxidation and yellowing inside the headlights. At the same time, dirt and debris adhere to the outer surface of the headlights. Wipe the headlights with a soft cloth: Regularly wiping the headlights lightly with a cloth to remove dust can prevent stubborn dirt buildup. During the cleaning process, avoid using rough cloths or applying excessive force, as the plastic surface of the headlights can easily be scratched. Once scratches appear on the headlight surface, they can trap dirt, making it difficult to clean and potentially affecting the lighting performance. Clean the headlights with soapy water: Soapy water is a mild alkaline substance that is non-corrosive, gentle, and highly effective for cleaning headlights. The materials needed include soap, a basin, a magic eraser sponge, and water.