Originally Posted by
UNA91
It is hard baked brake dust, and appears to be raised and bumpy, I can't even pick it off with my nails. I sanded the surface area abit and it had a rusty colour to it so i assume it is brake dust or a similar iron composite. I had to scrub them with a brush before which did leave fine marks, but scratch and swirl remover brought them back to normal. It's so annoying, those areas feel like a brick wall lol. I'm going to order 'Meguire's Wheel Brightener', apparently this stuff is super strong as it is acid based, but doesn't use hroflouric acid like some acid based cleaners which is overkill, and CAN kill you. It is from their professional detailer line at $52 for a huge 3.8L bottle... should last me ages since it is meant to be diluted. If this stuff doesn't do it then i guess i'll just have to suck it up lol
Previous owner must've had some hardcore race pads in the rain or something...