Rain-X Rain Repellent improves wet-weather visibility and safety by creating an invisible hydrophobic coating that repels rain, sleet and snow. Raindrops bead up upon contact with the super slick coating and are blown away by the aerodynamic wind flow from driving. This coating also makes for easy removal of ice, salt, mud and bugs. Ideal for windscreen, side and rear windows, and headlights. Do not use on plastics, painted, treated or coated surfaces. Always use your windscreen wipers as necessary. Ensure bottle is stored in an upright position to prevent spillage.