Help, scratch in convertible plastic window.

[WestEnd]

Hey guys, any experience on removing scratches from a convertible top plastic window?

A buddy has a Mercedes SL with the rear plastic window and his daughter tried to help him out with some ice and used a scraper on it leaving one long scratch.

Sorry I don't have a pic but what type of products would you use to try getting this out?

I was thinking a typical paint type correction. Multi step process but thought I would check due to the soft and clear nature of the window.

EDIT: I like the way this kit sounds, any experience? Professional Plastic Restoration System

[WestEnd]

Bumping this to see if anyone has used the Pro Plastic Restoration Syst. Link above.

Thanks.