Originally Posted by E46tknv

Well, the person who told me about the abrasive compound and toothbrush, also said that sonax will NOT get this off. This brake dust is baked on hard.

The before/after you sent, is not what I have. What that picture shows me, is someone with a couple day of brake dust that came off with chemicals. Brake dust comes off with soap and water. Baked on/Build up of brake dust, is what my wheels have.