This is the first time this has happened to me. I was cleaning and claying a one year old Ford Fusion in pearl white. The car has been driven but the paint looked pretty good but when I felt it and looked closer into the paint I could see black specs. I clayed using my Meguiars clay bar an Opt no rinse and this always has worked for me but not this time. The horizonal surfaces are still rough to the touch. What is the next step to get these bonded contaminants off-a decontamination like Iron X or should I go with one of the newer clay like towels? Thanks