You should wipe the vehicle surface with isopropyl alcohol or flash naptha at the application area, dry the surface with a clean lint-free cloth, create a mixture of 25 percent isopropyl alcohol and 75 percent water, use the solution to liberally spray the adhesive side of the protective patch, place the paint protective film patch to the desired location on the vehicle, spray the surface of the film with the alcohol, start at the center of the protective patch, release any air bubbles with a pin and then dry the surface with a clean, lint-free cotton cloth.