getting ready to Paint a 6 Cylinder Inline Exhaust Header for my 1929

I plan on Blasting the Manifold, KBS Clean the manifold, then 2 Coats of XTC Primer, 2 Coats of XTC Jet Black over the primer.

My understanding is to prime, wait 30 minutes, prime, wait 30 minutes, paint, wait 30 minutes, paint. Doing each in a thin even coat over the entire exterior surface.

How long after the last coat of XTC should I wait before heat curing ?? and can i do this on my standard gas grill or must be done in the oven ? My home oven is GAS. How long can I WAIT before i have to cure, can it sit for a few days, weeks, months before Heat Curing ??

The 30 minutes between coats of XTC are if you are using the convenient aerosol cans. If you are using the other sizes of XTC, it is 8 hours between coats.

You will want to wait at least 30 minutes (aerosol) or 8 hours (all other sizes) after the final coat before you do your heat cure.

Yes, you can do the heat cure (350F for 20 minutes) in a gas grill. That is a very common method.

The parts can sit as long as you want before the heat cure, but please know that full adhesion and maximum durability come after the heat cure has been performed.

Please check out the XTC Primer Directions and the XTC Directions and let us know if you have any additional questions.

I am using the aerosol for both Primer & Top Coat

Should I be concerned with the Primer & Top Coat on open fire grill ?? or no ?? flaming up and catching fire, and should i use an aluminum tray to sit it on or ??

We usually sit it on an aluminum tray for the heat cure using a grill.