How to repair deep scratches in black plastic (pannier lid)?

[Mitch9128]

Yeah, just call chips away or similar, they'll have it spankers in no time.

[jfranci1]

Hi Mitch,
Thanks for the heads up. I decided to have a go myself. I sanded it down with very fine sand paper wet & dry, and I then used high builder primer to fill in the scratches. It seems to have worked well with most of the damage, but if you look carefully you can still see the deeper grooves, but it is a lot less noticeable.
Cheers John