This little ding was a breeze to fix. It doesn't show any signs of not adhering well to the rustoleum either. I went with 80 grit, then 180, then 400 and water and it's flat now. The only thing is this area is going to need the 8+ coats the rest of the door will need. I think this door will have lots and lots of coats on it. Extra protection against people opening their door into the car I suppose.