Paint formulations can be unexpected. I once went in to get a small pot of paint made up fro my Mom's Honda and had the codes etc. The paint guy said about the red paint, "you won't believe this but there isn't any red in this formula!"
TruColor still has an expansive list of RR and other paints. I love the faultless way these airbrush straight out of the bottle, though they also have a line of crushable paints.