Outer Limits 4x4 Board

The steel bull bar is off the car and was thinking it might be a good time to fix up the scratches on the side. What is the best way to touch it up? Can you just sand the scratches out and use some spray paint, the scratches are mostly just in the powder coat, or is there a better way? Thanks.

No one here usually bothers but yeah sand and spray.

Keep taking it out and watch it change to a sliver colour on a regualr basis