I know that for clear plastic ramps flame polish is the way to go, but I am wondering what is the best method to bring my police light topper flashers (LAH) back to shine.
Plastic is very dull. Cracked in two places, so what ever I do needs to be gentle (somehow at least). Appears to be little scratches and UV damage. Anybody ever tried the polish they sell in automotive supply for buffing up your headlights?