The majority of headlight enclosures today are made of plastic. Over time, the coating on the headlight enclosures fade and become oxidized causing visibility and aesthetic issues. There are only 2 ways to repair the deteriorated coating: Either buy a new HD enclosure OR restore factory coating. Headlight replacement will come to you wherever you are! Mask around lights to prevent paint scratching, wet sand off old, yellow, oxidated clear coat, seal, apply 2 coats of clear coat, and polish.