The bezel and marquee shroud spent about 20 hrs under 2 blacklights. The best results came within the first 8 hrs. An additional 12 didn't seem to do much if anything. the bezel is no longer yellow, but an off white. I'm not sure further treatment would do much else to reach that bleach white I'm shooting for. Plus the plastic didn't treat evenly so I have darker streaks, giving it a somewhat cultured marble look. For my own sanity, and to match the cab, I'm just going to paint it with some krylon fusion plastic paint. Was a neat expirement that does yield promising results.
Before (cab on left):
After:
Before (cab on left):
After:
Gonna hit that control panel too?