Rain-X has rain-repellent, water-beading properties, but it is neither a wax nor an oil. ... The risk of damage to your car windshield from Rain-X is low.

Even after trying other wax-alternatives, I came back to 303 Touchless Sealant because it's the most effective and long-lasting. Here's what my car looks like after applying 303 Touchless Sealant.