yellowing clear corners

I have only had these clear corners for about 6 months. They have definitely started yellowing. Can I do anything to clean them up, or should I just buy better ones?

 

[bmxking5]

I've heard that you can't do anything about the yellowing. They are cheap and you either get a good set or a bad set.

 

[briwayjones]

Someone told me to take a shammy wheel that you stick on a drill and buff it with that. Maybe use some kind of polishing compound.

 

[Hartman]

There's nothing to buff out. The yellowing isn't caused by residue, it's caused by UV rays that stain the color of the plastic because its poor quality.

 

[briwayjones]

But does it stain the plastic all the way through or just the surface?

 

[Hartman]

I have no idea, but it really doesn't matter. If you're outside all day and get a tan, you can't just take a rag and wipe it off. Same principle.

 

[TTG]

I always heard wax did a good job of keeping them from yellowing. Not only that, but I imagine that if you used some of that other headlight cleaning stuff it might clean them up some. I used that on my headlights and corner lights when I first got my truck and it made a HUGE difference. Mine look like they're only a year or 2 old, not 10 years old.

 

[97WillowXLT]

meguiars "plastx"..$5 for some.