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I would give it a try but I don't have an oven big enough to cure the coating. Columbia Coatings has it also, that's where I get my powdercoating supplies.
What about heat lamps? In my High School auto shop they used to powder coat frames using heat lamps. It took a long time but it would be worth it! I wonder if it would get hot enough for ceramic?
I read somewhere before putting them on the car, you could use a torch and heat the inside of the header tubes to cure the coating. I thought it was a good idea.