NEED help - Cayenne brake dust caked

[tom p.]

AMMO just released a video where they tried this on an Audi where the brake locked and dust was caked to a point where not much effected it.

I watched this as well. Pretty aggressive strategy for dealing with severe build-up on a wheel:

First Wash In 5 Years: Dirtiest Audi S5 Ever Huge Detailing Transformation! - YouTube

[BrownBarbie]

Thanks everyone for you suggestions.
1. Meg`s Wheel Brightener did the job 4:1 and I never let it sit more than 2 min and never let it dry
2. I wore fully PPE including respirator
3. I went through two spray bottles as the acid killed them both
4. Maintained full shine and I was able to lay a nice ceramic coating to all wheelsCayenne wheel clean close.jpg

[Setec Astronomy]

Great result!