To polish out light scratches
Felt polishing pad on a polishing arbour, jewellers rouge or glass polishing compound and water spray so as not to burn
But having tried to polish glass scratches left by our decorators on toughened glass using paint scrapers - it's not easy, it's messy and only successful on light scratches
To add to this, you need a powered polishing mop in something like a Dremel. With this, you can polish out quite big scratches, I've done it when I got the three wheeler aeroscreens reglazed. My neighbour has done it too, I supplied the jewellers rouge for her.
You still need to have patience though, it's not a quick job.
