Atomikk
SPS OG
It all depends on how deep the scratches are. If they are slight then you start with a finer grit and it doesn't take too long. Deeper takes longer. I only do one side at a time, because it's a lot of work. It really pays to take your time and use each grit thoroughly.
Thank you for this. I need to try this as soon as possible. What magnet did you use to attach the sandpaper with?