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wrote:

On Mon, 22 Aug 2005 08:30:58 -0500, Duane Bozarth
wrote:

I was specifically thinking of the raw Al primers, not over a
pre-painted.

You need a pretty aggressive primer. The oxiide that protects aluminum
makes an effective barrier for paint too. If you don't etch into the
base metal the paint will flake off.

That's what they make specific-application primers for and why I
mentioned them specifically...