Perma Glass PG Windscreen Washer Additive is your all-in-one solution for a crystal-clear windshield. Formulated to remove stubborn road grime, oily film, bug residue, and dust, this additive work seamlessly to reduce smears and improve driving visibility. Safe for both your windshield and wiper blades, it contains no ammonia, ensuring long lasting windshield clarity without harming delicate surfaces.