Originally Posted By: wrcsixeight
I recently tried 303 directly on the black trim with a clean applicator, still made the black trim black again, but the black sponge worked better.
I've never used a product marketed specifically for this task, and my vehicle is no looker, and there is no reason to polish a turd. I just try not to attract attention to the fact it is a turd, and keep my low mileage tires from dry rotting prematurely.
Funny, I just came to this forum hoping to find advice on restoring black trim.
Ironically, I used 303 and it worked nicely, until the first time it rained. It seems 303 has an oil of some sort which rinses off in rain. What I'm not sure about is whether the UV blocker remains on the plastic despite the oil rinsing off, or if you have to re-apply after every rain. Being in the PacNW, I need something that will last through rain.