Try Zero-Ruse Prep-Step (http://www.zerorust.com/prepstep.html). This is a phosphate-based powder that you mix with water and spray on bare steel. It leaves a slightly dull gray surface on the steel that will keep it from rusting for s couple of weeks. The nice thing is that it is not acidic or nasty, and you don't have to rinse it off. I got it from a vendor at a swap meet, and it has saved my a$$ on my '31 Ford project, when I sandblasted the frame and floorpans over a period of several weeks.
Someone once recommended Dupli-Color self-etching primer in a spray can for the situation you described. I got some and used it on some chassis hardware, but I found that the paint I put on afterwards tended to chip off easily. Most "primers" are lacquer-based and have a lot of filler (talc), and are porous and not very strong. A bad choice for your chassis! You might try Eastwood chassis black primer, which is a 1-part epoxy-based primer. I really recommend a 2-part epoxy primer like PPG DPLF. It dries very hard and strong and waterproof. But you have to mix it up and spray it with a gun, and you need to put on the next coat within a few days before it fully cures. So it would not be very useful in your situation. Doug Braun '72 Spit --- David Mayer <[EMAIL PROTECTED]> wrote: > What are everyone's thougths on rattle-can primer on > bare metal of a Spit > while it is waiting for body work and final > painting? I just keep getting > rust spots on the bare metal that I have already > blasted and sanded a couple > of times. The humidity is killing me here. > > Any recommendations for something that will seal up > the metal well and keep > that from happening? _______________________________________________ Spitfires mailing list Spitfires@autox.team.net http://autox.team.net/mailman/listinfo/spitfires