Headlight lens Problem

[Sharkey1]

Hi, I have a 08 Gran Prix,base. I have purchased 2 sets of lights over 9 years. My new set, is starting to oxidize in top corners of lights. Sorta like inside plastic distorting? All inside,not outside. No moisture,but heavy clouding up? Two different companies for lights. Is this common? Thanks.

[nik12937]

You're certain it's on the inside? Aftermarket lenses tend to lose their UV protectant pretty quickly, it sort of peels and then begins to oxidize.

That said, I've had some A/M lights gather condensation internally, the lens wasn't fully sealed. I tend to run a thin spread of clear silicone over the seam where the lens seals to the base. They've never clouded because of this though, it's always been the exterior of the plastic oxidizing.