Issues painting sheet metal Options

[dbgriffith75]

So as I'm rebuilding the engine on my 914, I've been repainting the sheet metal with, and I know it's not the best way but my budget is limited, spray paint. Not just any spray, it's Dupli-color Engine Enamel- a ceramic rated to 500 degrees. Problem is, the primer gray is showing through no matter how many coats I put on it. One piece must have about 20 coats on it and still the gray is showing through. I finally got to the point where I said screw it and sprayed on a really thick coat on one piece, telling myself that when it cured I'd just sand out the runs and put on a lighter top coat to finish, but even that isn't working. Any ideas if it's just the paint, or maybe I should just switch to a black primer? Thanks.

[tod914]

Looks great. I inquired with Duplicolor regarding their paints. Durning the video tuturiol they had, they said it needs to be baked. How well does it hold up when it is not? here is there responce to my email.

Me "If I am unable to bake it at the reckomended 300 degrees for 2 hours? Will the paint cure ok if left to dry on its own? Thanks, Tod."

Responce " It is necessary to bake the High Heat products, otherwise, they are permeable by contaminants and considered uncured and can be easily damaged. "

Curious to see what experiences you all had with non-baked paint. I need to do alittle touch up on mine as well.