What my hecklers, errr ummm, fan club is talking about, is Master Coat silver. Maybe you've heard it mentioned on other forums. It's MCU, Moisture Cured Urethane. It's sold at swap meets all over. They (my fans) call it "toxic paint" because it has isocyanates in it. Paint stripper won't remove it, brake fluid won't soften it, battery acid can't even dull it, air craft stripper will soften it after soaking for 12 hours+, it's high temp proof up to 600 degrees, comes in a clear version that can be tinted with any color pigmnents you want, fuel proof..... It can seal pinholes in gas tanks, you can pour it into leaky windshield frames, you can paint cardboard with it to waterproof it permanently.... You have to put a piece of plastic between the lid and the can when sealing it up, or the lid will be "welded" on permanently. It passes a 16 day salt spray test easily. It really is good paint. You have to wear rubber gloves, and a respirator when applying it. You can brush it or spray it. The first coat of silver should be brushed on, the be sure of good coverage. Then spray away!
The silver is a primer that can be applied over rust. All you have to do is wire brush loose scale. Sandblasting is best though. It is a high build finish, so it will fill pits and dimples in a chassis nicely. It contains aluminum, and you can actually "scrape" it from the bottom of the can, and spread it as a filler.
It also comes in chasis black. The clear is a good top coat, but like I said it can also be tinted. It's the paint we used on the 4wd 77 Monte Carlo on my pages. Here's the chassis all done in black, with 2 clear coats on it.
The red is cheap Krylon, but it has 3 clear coats on it.
I'll tell ya, try to share a great product, and NEVER hear the end of it.
~Chuck Smith a.k.a "Toxic Paint Guy"