
Originally Posted by
speedminded
It's a UV coating that lasts a couple years depending on how much exposure the lens gets.
I highly doubt it was ever sprayed on from the factory, it's questionable on 3000GT's and a few other because of the way it seemed to flake off after several years though.
You can't polish something to a brilliant shine then expect a clear coat to stick to it, even when using an adhesion promoter.
I'm positive for 99/100 cars the UV protective coating is actually the first layer in the mold process when the lens is poured.
A professional clear coat would be a temp fix for $100 or so but if you're polishing and waxing your car on a regular basis anyways what's an extra square foot or two of elbow grease going to hurt? Save the cash & buy some gas.