To fix curb rash on rims sand the damaged areas down with 400 grit sandpaper.
How to fix gutter rash on black rims.
In order to give the rim the same look with the same texture and color.
Put spot putty on a putty knife and use it to fill in the damage so the rim is even and level.
Apply primer to the wheel if you re using rimsavers.
Mask the tire and car so only the rim is showing be sure to cover the valve stem lug nuts center cap and brake pads.
Check the rim if it has a protective coating.
Just a heads up the clear coat the use on most polished lips is extremely tough so i would recommend using some paint stripper just be extremely careful it will strip pretty much anything it comes in contact with.
Wiping out the coating on the rim.
If the rash is not that deep sand the lip down polish it up and respray it with clear coat.
You need to remove any dirt or tire shine from the rim in order for the rimblades rimsavers to adhere correctly.