4Star UPP Question

No staining here either. In fact, I sometimes use UPP on the black plastic trim on the bottom of the S8. Watch that it doesn't contact any water though; the resulting "spots" can be a pain to buff off. Seems like the UPP by itself doesn't stain, but a mixture of UPP and water *does* stain. Nothing that you can't get off, but a hassle nonetheless.
 
I don't think the UPC would, but I know UPP doesn't. That doesn't mean you shouldn't avoid getting it all over your trim though. It would still be a good idea to clean it off after you use UPP or UPC if you happen to get some on trim.
 
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