Terry, I scraped off the debris, rubber bumper parts that adhered itself to the plastic, and cleaned off the rust with 0000 steel wool. Also cleaned the body of the nozzle with steel wool. Then I sat for about an hour and hand polished the plastic with Megular's (sp?) automotive scratch/swirl remover. Then - went over all of it with Maas metal polish. I've used it on plastic for a while now, and it always works well.