bob, its probably a ceramic coat he is spraying. its really the only thing that will hold up over the years and stay looking good. regular powder wont hold up over 450deg as well as anything in a rattle can. i can do it for you chad if you dont mind shipping them to me. they'll get blasted, coated and baked at around 600. really super durable. comes in an array of colors. if you dont want to do it, hok has their high heat black which is similar. you can get that as long as they haven't discontinued it. its almost the same thing. i have used it on header pipes and years later it still looks like new. its stays delicate until the part gets hot. the heat on the part causes the chem reaction then crosslinks.