Deep cleans glass. Removes oily residue, water spots & bonded contaminates. Improves glass clarity & smoothness. Dramatically improves night & wet-weather vision. Restores smoothness and eliminates wiper chatter Meguiars Perfect Clarity Glass Polishing Compound 236mL G8408 Enjoy superior visability at night and in wet weather, as well as restored smoothness and improved clarity, with Meguiar's Glass Polishing Compound! The Perfect Clarity glass polisher uses super micro-abrasive technology that cleans those stubborn baked-on contaminants that normal glass cleaners can't remove, such as pollution marks, oil residue, tree sap, possum/bird droppings, tree sap, and wiper smudge. The glass polisher also features water-roll-off properties (great for when you drive in the rain), the ability to work well on neglected glass, and eliminates hazing and windscreen wiper chatter. You can apply it by hand, or, for faster results, with Meguiar's Advanced DIY Foam Discs.