GeeBee-
Maybe this will help ya, maybe not.
My engine compartment existing paint was in
terrible condition. I stripped the old paint
a little bit at a time and sanded out the fine rust
rust lines.
With a fine brush I applied a layer of Rustoleum.
More small areas bit by bit until the entire engine
compartment was cleaned up and had one layer of paint.
I then wet sanded all the drips and obvious brush
strokes. I then applied another coat over all the areas.
Let dry for a week or so and again wet sanded some spots.
I then applied a final coat of semi-gloss clear.
The final product is far from perfect but far better
than what I started with!!
best wishes,
tinster