Is it true that rain repellent can be used to clean a windshield?

Rain repellent is designed primarily to enhance the water-repelling properties of a windshield, rather than to serve as a cleaning agent. While it may have some ingredients that can help remove minor residues, its primary function is to provide a hydrophobic surface that causes water to bead up and roll off, improving visibility during rain.

Using rain repellent as a cleaning agent is not advisable because it may leave streaks or film on the glass rather than clean it effectively. Instead, dedicated glass cleaners or appropriate cleaning solutions are formulated to remove dirt, grime, and smudges without leaving residue. Thus, saying that rain repellent can be used for cleaning a windshield does not align with its intended purpose, confirming that the statement is not accurate.