Our windshield coatings contain isopropyl alcohol, fluorinated silane, and silicon. It can reduce the need for frequent recoating and keep the glass clear for a long time. Its use method is very simple: open the lid, press the brush head to let the liquid flow out and then wipe the liquid evenly on the windshield in a circular motion, waiting for dry to form a film. And can be applied to car Windows, mirrors, windshields, etc., to provide comprehensive anti-fog protection.