Wind shield

[FishStretcher]

For headlights I sand then clear coat them. Clear coat will fill 320 grit scratches. You wouldn't think it works but in 20 mins you can do 2 headlights.

Not sure what it would look like on a wind screen. But it would be easy to sand some hardware store plexi and try. Lexan polycarbonate is expensive. It it more likely a plexiglass acrylic wind screen.