It was a hot day. I don't know if the wheel got well over 400 degrees, or if this formulation of powdercoat can't take as much heat as the other colors I use, but the powdercoat actually melted at the hub and discolored on the spokes after a couple of hot sessions at Barber. You can see where it spread out and ran onto the rotor.
Hope its not too hard to remove the wheels now.