Originally Posted by Templar
Can't quite tell either, based on a couple details I saw posted by these guys it looked like the cars were in kind of rough shape anyway, so it would have been hard to tell if there was new marring from this product.
Understandably, they might have a tough time finding someone to test it out on a swirl/scratch free car though
yes it can mar just like a clay bar can.
We have done a few new car preps with it and no issues.
I may do it on my black car soon.