From: J. Forster (jfor@quik.com)
Date: Tue Feb 05 2002 - 11:13:44 PST
Allen Jones wrote:
> When painting aluminum, I use a two part conversion system prior to sealing
> and painting. It's made by Dupont specifically for aluminum and is comprised
> of a cleaning and conditioner (part number 225) followed by a chromatic acid
> compound (not zinc chromate, but is still yellow) (part number 226) and it's
> called something like Alidine (sp?).
Is it possibly Alodine? Is it more a dusky gold color than the greenish-yellow
of Zinc Chromate? Alodine is also electrically conductive and is ofter used for
areas where EMI / RFI shielding gaskets mate with the bare metal, because
aluminum forms a non-conducting oxide layer.
Where do you get the Dupont stuff, BTW?
Take care,
John
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