Maintain crystal clarity. Meguiar's Keep Clear Headlight Coating is a proprietary spray coating that helps to improve and maintain optical clarity on freshly cleaned or restored headlights for up to a year. UV rays and elements like acid rain, salt and road debris are the main causes of damage to headlights. This unique formula provides a durable UV barrier and protective coating, and comes in an easy-to-apply aerosol spray. So whether you've just restored your headlights or you simply want to keep your new headlights looking new, our headlight coating will give you the long-lasting clarity you're looking for.