For those of you that have been wondering if that can be done.... I had some pretty deep scratches in the back window, partly my fault and the rest from the previous owner. I got most of them out with about 80% improvement.
Cheers.
- Following the mantra of 'use less aggression as possible' I used a 3 inch orange pad and started out with Plastix. OK but not good enough.
- Then used Menzerna 500, better but not harsh enough.
- Then Menzerna 400 and that did a pretty good job!
Cheers.