this shit is fucking awesome.
i have seen people post about it on here before but never bought it... but holy fuck, i used it last night and it's game changing. I'm going to buy the big bottle and just refill my mini. this is going to be a weekly thing i've learned sooo might as well be ready for it.
The stuff is such a time and labor saver it isn't even funny. On a car with brake dust issues, like BMW and big brake kit cars, this stuff is worth every penny.
I have the 5 liter bottle on my Amazon subscription. haha But I use the stuff a lot due to how incredible the stuff works. Iron X is the same way with your paint finish. And trust me, you will see a large amount of iron being taken off, in the same manner, with the Sonax does the wheels. As that brake dust gets blow onto the fenders, doors, and rockers as well. You can use Sonax on the paint as well. But it doesn't work as well as the Iron X. But spray some of your Sonax behind the front wheels and I bet you will see it turn to purple as well. Brake dust sucks.