05-25-2021, 08:45 PM
I don't know if you can retrobright Tennite like you can with other plastics. Basically you cover it with a creamed hair bleach, and stick it in a clear plastic bag out in the sun for an afternoon, wash it off, then repeat if necessary. Then you could try a polishing compound like Novus, or one of the 3M products for buffing out car paint.
Regards
Arran
Regards
Arran