Yes, you will need to strip the clear coat. What you are seeing is clear coat failure, sometimes referred to as "Airstream Pattern Baldness." it s not difficult to strip the clear coat. You will find numerous threads about it. The clean aluminum can then be lightly buffed to a more factory finish, or can be polished (a much more extensive project) and then can be sealed, waxed, or re-clear coated. We use white Diamond to clean and seal ours, similar to waxing a car. It looks beautiful!