Easiest way to remove door ding guards, aprox. 1/2 hour, use a heat gun , just be sure to use a concentrator nozzle and aim at the guards only, they pull right off, then again apply heat to the glue/goop, push with thumb, any leftover, which will be very little can be removed with OOPS, latex paint remover. Cleans up very, very nice.......Then you can spend the other half hour rewaxing the doors, total time aprox 1hr.....