McKee's Glass Cleaner 427 delivers streak-free clarity with every application. Designed to forgo alcohol and ammonia, McKee's 427 instead relies on the same cleaning technology found in hospitals. A quick spray and wipe with McKee's 427 will remove hazing and spottiness from glass, interior and exterior. Thanks to its advanced formula that utilizes non-ionic surfactants, McKee's 427 is safe to use on tinted windows. Don't stop at your automobile! McKee's 427 works equally well around the house, especially bathroom mirrors.
Do not apply to a hot surface. For best results, divide windshield into quadrants. Working one section at a time, spray a liberal amount of cleaner directly onto the glass. Wipe clean using a glass towel or paper towels, flipping or switching to new towels often. Repeat this process once more to ensure a streak-free finish. Professional tip: Wipe in one direction when cleaning exterior glass, and then the opposite direction when cleaning interior glass. This makes it easy to identify if streaks or smears are on the exterior or interior.