1970 914-6 Bottom Paint Question? Options

[racerbvd]

I got a big question on our 914-6, on the bottom, mine has been painted a different color (from the factory) and undercoated:confused:
My paint guy says that he finds no traces of Blue on the bottom and that the color & under coating appear to have been applied from the factory..
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This is a Concours Restoration, so it has to be correct, so on one hand I'm thinking just Paint the bottom the matching Blue, but on the other hand, Porsche was also known to sometimes spray the bottoms with what ever was left in the Spray gun and I know of one collector who has a few 914-6s, like mine, both 70s and both OEM, yet one of his 1970s Six's has no coating; another '70 does:confused:
I need to figure this out ASAP as the car is ready for Paint..
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[mepstein]

"The underside and cavities of all chassis are factory phosphatized and dipped in primer. "

If this is true, why are the interior floors bare steel under the tar?

I know my knowledge is limited but I just don't buy the - dipped in primer.

[SirAndy]

If this is true, why are the interior floors bare steel under the tar?

Because the primer went over the tar, just as did the paint? (IMG:style_emoticons/default/confused24.gif)


As for the underside, there is a layer of primer over the bare metal followed by a thin layer of light grey PVC.

The black stuff on top of that seems to have been optional as i have seen cars without it.
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