After many hours of wiping down, Blowing out all the dust in the frame rails, and cleaning out my garage, I laid down some Dupont Centari satin black Urethane on the entire underside and the engine compartment. I wanted it to have a slight more gloss then the original, but still be a satin finish.
Here is the formula I used:
8
parts Dupont Centari Black 99-A
1
part Uretane Activator (hardener) 792S
4
parts Dupont Flattener 4531S (4 1/2 to 5 for flatter finish as
original)
1
part Dupont T-8022S Medium Reducer