Headlight polishing

[p2roverman]

I'm aware this subject has come up many times, but have two questions -



There has been an argument as to whether the headlight plastic lens had a protective coating from new. Having just used the 3M kit to clean them it appears there is no coating, unless it was polished off before I bought the car. Can one of the knowlegable confirm one way or the other.


Secondly, having polished the plactic lens, is it recommended to coat them with a protective coating, such as the "Glass Polish Surface Sealant Easy Clean Coating" recommended to buy from Amazon when getting the 3M kit.