Thanks everyone, I found this, http://www.kbs-coatings.com/Xtreme-T...e-Coating.html
This look like what I may want, it is used on headers and can take up to 1500 degrees of continues heat. It is a bit pricey but should do the job.
Lg Spicewine on trailer
Weber charcoal grill
2 ugly drums, semi retired
Bbq toolbox, formerly Chargrill smoker
My wife has gas, its a Brinkman.