RimPro-Tec may be used to cover up lightly scratched and scuffed rims. However, their long term performance may be reduced. The damage should not be excessive or in an area more than 3" to 5" (125 mm) in length. If there is any raised up bits of metal in the damage it must be filed or ground down to flush with the rest of the wheel surface so that RimPro-Tec can be applied over it.