Yes! If you follow the steps to remove dumbbell rust, your dumbbells will look new again. The only way dumbbell rust could come back is if you leave them out in a wet or humid area for an extended period. If left long enough, dumbbells with a pitted or flaky finish can retain moisture and promote corrosion. To prevent any future rust from forming, it is best to wipe dumbbells down after every use and store them somewhere dry. It is also important not to store dumbbells with gym equipment that has been rusted, as this might cause more damage to your dumbbells later on.