I used this product on the metal splashguard of my bike. It's called POR 15.
http://www.ppcco.com.au/restoration.htmAbove link is for the dealer in Australia, but I got mine from Amazon. It's a very tuff kind of paint.
I liked it especially because it is the only (oil based?) paint I know of that cures around water. It rains alot over here, and there was hardly a dry day when I did the whole job, so i needed a paint that would dry in wet weather and could handle stone chips. I can't show you any pictures of the result, cause I sold that bike a few years ago, but best I can describe it is thicker than normal oilbased paint before application, and hard like porcelain when cured. I think I skipped step 1 and 2 in the above plan, but here's what I did:
1. just scraped loose dirt and rust,
2. used a wirebrush for the finer work
3. wiped it down with paint thinner
4. applied the POR 15 with a small paint roller.
Might be worth looking into for your application. Would look awesome with much of your chassis exposed like that.
Edit: You still have to finish it off with black paint though, as it is a pale gray by itself
.
