i think,i might be wrong and andy will tell me if i am that they are stove enamelled,i think they are as if it was 2pack the paint would soften up when the brakes get hot and discolour.stove enamell is baked at a much higher temp than 2pack.A mate of mine is a painter in the ford transit factory and repaints the transits that get damaged,they are painted in stove enamell(not 2 pack) and when they bake them if they dont cover up the plastic parts eg mirrors they melt on to the floor and his melted a few,if the dont unmask it before they bake the masking catches on fife .