I am "rejuvenating" the lower cowl on my '66 Cherokee Six 300. This has involved stripping the remains of the previous paint with chemical stripper and soda blasting. I have some minor fiberglass repair work to complete, then painting and installing heat shielding in the areas near the exhaust headers and muffler. Does anyone have a good recommendation for a type of paint to use on the interior of this fiberglass cowl that will hold up well to the high heat and flexing?