Originally Posted by ItsBroke
I'm almost certain clay bars used to be color-coded and blue bars were the ones that should be used on new cars. Has that system been tossed aside? I just picked up a Mother's kit for the short term, and as was mentioned in another thread, the bar is yellow.
Not sure but I think that was in the past. Now clay bars are synthetic and I believe color coding for abrasiveness is exclusive to each manufacturer. One company may use blue for fine and red for abrasive while another may do the opposite