I used to chemicaly clean metals (Brass, Bronze, & Aluminum) for a molding
company. To clean aluminum we used a caustic soda dip (base) for 10 seconds
( untill it was black) then nitric acid (10%) two quick dips (to clean off
the black). The base cleans off the oils and grease then the acid cleanes
off the oxidation. Of course the chemicals you can get are probably weeker,
but that might give you a start.
Tod Jones
Harrisonburg Va.
66 Spit being rebuilt
77 Spit Parts car
-----Original Message-----
From: Edward Hamilton <hamilton@ptd.net>
To: Spitfire Mail List <spitfires@autox.team.net>
Date: Saturday, June 19, 1999 10:19 AM
Subject: Alum. cleaning
>
>I've spent too much time cleaning and polishing a pair of side-draft Webers
>and a Cannon inlet manifold. There are "spots" on the Aluminum or in other
>words, the Aluminum is not even in color.
>Is there some cleaner or chemical dip that I can use to even out the color?
>Anyone else experience this problem?
>
>Thanks in advance,
>Ed Hamilton
>
>
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