You want to achieve a matte finish using a 600 grit sandpaper and clean as you go with copious quantities of water and detergent.
How to repair rims gutter rash.
Wiping out the coating on the rim.
To fix curb rash on rims sand the damaged areas down with 400 grit sandpaper.
Complete guide on how to repair curb rash on a alloy or polished edge rim.
If there s any corrosion take it down to the bare metal.
Begin by sanding the damaged spot with a rough sandpaper of about 220.
Check the rim if it has a protective coating.
A decade ago smaller rims were the norm and they were wrapped.
Put spot putty on a putty knife and use it to fill in the damage so the rim is even and level.
Most modern cars are now sold with polished diamond cut wheels so if you scratch.
In order to give the rim the same look with the same texture and color.
How to fix gutter rash on rims one.
I used duplicolor filler primer as well as duplicolor acrylic enamel and gloss clear coat.
How to wheel curb rash on a modern car here.
Give special attention to the wheel rim as this is where most of the damage is likely to be but it can easily get overlooked.