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#28479
jpatti75
Participant

    US Member

    I personally have had much better luck with epoxy primer than the current Zinc Phosphate (can’t get Chromate anymore) self etching primers. PPG sells a variety of 2-part epoxy primers that go with their various paints. Just pay close instructions to the application. Once mixed, the pot life is only a couple hours and if you wait longer than 3 hours to apply paint over the primer, you’ll have scuff the dried primer with a Scotch Brite pad.

    I don’t think you’ll regret using the epoxy primer — I personally think it has better adhesion to aluminum than a lot of the self-etching primers being sold today. Just my humble opinion!

    JP