Permatex says its new Permatex single-use Rotor Cleaning Wipe towelette makes it easier to clean and prepare new brake rotors for installation. Permatex Brake Rotor Wipe is a water-based cleansing wipe designed to remove oil residue and impurities from the rotor surface and help protect the rotor from corrosion. The formula contains no VOCs and helps to promote pad wear-in.