In the photo of the sanded engine bay, is that as far down as you went and sprayed the epoxy over the old primer and paint or did you go to the bare metal everywhere? The reason I ask is I'm doing the exact same thing with spi epoxy and I have been sanding myself to death trying to get everything down to bare metal if I can just sand the surface and spray it it would save me alot of work. Spi tech line told me to finish with 180 grit can i spray it over the old paint/primer as long as it's sanded?
