Hey all I was wondering if anyone could offer advice on this paint cleansing dilemma I am currently having. Its a white Aventador that has by far the most horrific bonded contamination I have ever seen. I started with regular wash then Iron decon and the car went from white to purple! I clayed with a fine clay, then medium, aggressive, and clay pad on the DA but still had these black spots bonded to the paint. I tried de-greaser, APC, more iron remover, and bug and tar remover with no luck. It does react to the iron remover but will not come off. I even hit it with a wool pad with m110 on the rotary just to see if I could take it off with no real success. The only thing that worked on a small test area was 3m 3000 grit sanding discs. I would like an alternative to having to color sand the hood and front fender sections if possible. I am correcting the whole vehicle as is but would like to avoid the time to color sand. Thank you so much for any input.