window cleaner . It is streak-free, ammonia-free, VOC compliant and safe to use on tinted windows. WC sprays like water, there is no foam and no harsh smell. Just spray and wipe and watch dirt, grease, water spots, smudges and just about anything disappear. WC is engineered and developed just for windows for the perfect streak-free results with every wipe. Window cleaner features optical clarity technology which provides the user with perfect vision on the road which increases safety. window cleaner is also a versatile glass cleaner that can be used on more than just glass - it can be used to clean plastic instrument panels, clear vinyl, headlights, tail lights, LCD navigation screens and more.