Yea, you may want gloves when you use that brillo pad on your tires Roger...
Especially with those delegate hands of yours. And definitely only use those on tires and not on anything else!

When we tested armor all at work it was on polycarbonate (pc). It was tested in a qsun brand uv test chamber for several months.
It caused more yellowing over time and generally more surface degradation and sort of etching. Not just a little, but a lot. Other products did the same thing, but not as bad. Keep in mind, results on other materials may be totally different.
But the real lesson was, just clean with a little really mild soap and water and the plastic lasted the longest. Also, be careful using any window cleaners, or any natural cleaners that contain ester on plastic. Definitely don't use brake fluid to clean plastic! (Yes, people do that...just go to YouTube, but don't do it! Dot3 is ester based.)