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MG MGB Technical - Best way to protect bare metal

Having just acquired a solid ex US 1963 B shell as the basis of my restoration, I'm in the process of cleaning up the body tub and rubbing back to bare metal.

The car is an FIA project and I want to finish up with a shell that is body colour inside and out. I also want provide the best level of rust protection and wondered what is the best way to protect bare metal surfaces as a base layer? As I clean up the chassis rails, under arch areas and underside of boot, should I put a base layer of red oxide primer on or is there a better solution?
M Culmer

Use 2 part epoxy "direct to metal" PPG Omni Au or equivalent. It is fairly moisture roof and very durable.
Art Pearse

I used some stuff called Kephos which I just wiped over bare steel panels with a cloth. That kept the bare steel of my car protected for years (literally) as I worked on the body.

The whole car was sanded back to bare steel again just before etch priming it.

http://www.buildsrilanka.com/ICI%20Paints/Duco%20Kephos%20-%20S841-253.htm

Simon

Simon Jansen

If you want it to last without the continual problem of rust coming through the paint work, (cheapest)have it sand blasted with Garnet and then etch primed within 1 hour with a good weldable etch primer. (dearest)have it acid dipped and electrophoretically primed.

Always waxoil everywhere went bolting up components.

I used the sand and etch primer method as the other method did not exist 14 years ago when I built our B roadster. After 60,000 miles we have no rust anywhere , even on the underside where paint has been blasted off by my enthusiastic driving, the etch primer is still holding on.

Graham
G Cherry

This thread was discussed between 02/03/2010 and 09/03/2010

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