If you find that the car foam pad becomes very dirty during waxing, you can re-wash the car, or you can use cleaning wax first, and then officially wax.
During the process, when the car foam pad becomes dirty, it should be replaced immediately. Avoid the dirt adsorbed on the foam pad causing scratches on car paint.
When using car wash gloves, car wash cloths, car wash sponges, microfiber towels, waxing sponges, etc., you must pay special attention to cleaning to avoid damage to the car paint!