like cincyTT said, read before you use. The pic I posted, you leave it on the wheel only for 45secs. that's all and rinse it.

I use it for years now. It's a great product.

 

I have personal experience with ******* a wheel up from using acarb type cleaner. A week after I cleaned the wheel the clear coat started peeling, but it sure was clean.

 

This Black Magic doesn't work. It says spray on let stand less than a minute then rinse, then towel dry. The dust comes off with the towel dry...on the towel. On other detailingproucts I got quality items. I went cheap on this and got what I paid for I guess.
Sorry I'm skeptical of the Dupont. The brake dust just seems toosticky for any cleaner alone.

 

if its that bad, take off ur tire, hit the hub/ inside/outside the tire with brake cleaner... that will help, also, try FW1... homie used to sell it, it works bomb as ****...