I applied a light coat of tint spray this past summer and followed with a gloss overcoat. This past week I noticed the glossy finish had started to crackle and become somewhat spotty. I decided to use the finest wet sand I could get my hands on to try and remove the overcoat and succeeded, but it left the lense extremely dull. Any suggestions as to how to restore the shinyness?

 

plastic lens polish

 

meguires

 

^ +1 Just be careful though. Pick a very tiny spot and try it there to get the right rotary speed. I almost screwed up my headlights.

 

hit it with a layer of clear coat......

 

Clearcoat. You cant necessarily use a polish thats too abrasive because niteshades, which is what I'm assuming you used, is basically a clearcoat itself and extremely thin