Hi all TLers~

I have the aspec body kit. Today I was driving on a quite uneven and bouncy road. I didn't notice a little bump in front of me and have scratched the bottom part of my front bumper's gun metal colored lip (sorry, i don't know how I can describe that part more precisely) as I was driving quite fast (trust me I regretted). The scratch wasn't deep; it's just like it has been filed by a sandpaper or something...

Is there a quick fix to make the part smooth again? I am thinking to use a sandpaper...

THANKS for all input.